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3406 MARINE ENGINE 91U00001-00122 BASIC ENGINE Caterpillar SIS



MARINE ENGINE 3406 MARINE ENGINE 91U
 3406 MARINE ENGINE 91U00001-00122 UEG0747S 3406 91U   (1975)

Parts group 3406:

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BASIC ENGINE
CAMSHAFT GP
CAMSHAFT GROUP
4N-0961 CAMSHAFT GROUP
4N961 CAMSHAFT GROUP
Part of 4N2239 Basic Engine Arrangement listed on Page 12
Only separate parts serviced
CRANKSHAFT GP
CRANKSHAFT GP
4N-0741 CRANKSHAFT GP
4N741 CRANKSHAFT GROUP
Part of 4N2239 Basic Engine Arrangement listed on Page 12
Only separate parts serviced
CRANKSHAFT ASSEMBLY
4N-0928 CRANKSHAFT ASSEMBLY
4N928 CRANKSHAFT ASSEMBLY
Serial No. 91U1 to 91U82 inclusive
Part of 4N741 Crankshaft Group
CRANKSHAFT ASSEMBLY
4N-0928 CRANKSHAFT ASSEMBLY
4N928 CRANKSHAFT ASSEMBLY
Serial No. 91U83-Up
Part of 4N741 Crankshaft Group shown on Page 20
CYLINDER BLOCK GP
CYLINDER BLOCK GP
4N-2257 CYLINDER BLOCK GP
4N2257 CYLINDER BLOCK GROUP
Serial No. 91U1 to 91U85 inclusive. 4N7645 Cylinder Block parts are shown on
Page 16. Refer to Page 24A for special parts
CYLINDER BLOCK GP
4N-2257 CYLINDER BLOCK GP
4N2257 CYLINDER BLOCK GROUP
Serial No. 91U86 - Up. 6N1008 Cylinder Block parts are shown on Page 17
Refer to Page 24A for special parts
CYLINDER BLOCK GROUP
4N-7645 CYLINDER BLOCK GROUP
4N7645 CYLINDER BLOCK GROUP
Serial No. 91U1 to 91U85 inclusive
Part of 4N2257 Cylinder Block Group shown on Page 15
CYLINDER BLOCK GROUP
6N-1008 CYLINDER BLOCK GROUP
6N1008 CYLINDER BLOCK GROUP
Serial No. 91U97-Up
Part of 4N2257 Cylinder Block Group shown on Page 15
CYLINDER BLOCK GROUP
6N-1008 CYLINDER BLOCK GROUP
6N1008 CYLINDER BLOCK GROUP
Serial No. 91U86 to 91U96 inclusive
Part of 4N2257 Cylinder Block Group shown on Page 15
COVER GP-CYLINDER BLOCK
9N-0684 COVER GP-CYLINDER BLOCK
9N684 CYLINDER BLOCK COVER GROUP
Serial No. 91U1 to 91U85 inclusive. Part of 4N2239 Basic Engine Arrangement
listed on Page 12. Only separate parts serviced
COVER GP-CYLINDER BLOCK
9N-0684 COVER GP-CYLINDER BLOCK
9N684 CYLINDER BLOCK COVER GROUP
Serial No. 91U86-Up. Part of 4N2239 Basic Engine Arrangement
listed on Page 12. Only separate parts serviced
COVER GP-CYLINDER BLOCK
9N-0015 COVER GP-CYLINDER BLOCK
9N15 CYLINDER BLOCK COVER GROUP
Serial No. 91U1 to 91U85 inclusive
Part of 4N4239 Engine Procurement Arrangement listed on Page 14
COVER GP-CYLINDER BLOCK
9N-0015 COVER GP-CYLINDER BLOCK
9N15 CYLINDER BLOCK COVER GROUP
Serial No. 91U86-Up
Part of 4N4239 Engine Procurement Arrangement listed on Page 14
CYLINDER HEAD GP
CYLINDER HEAD GP
4N-2260 CYLINDER HEAD GP
4N2260 CYLINDER HEAD GROUP
Part of 4N2239 Basic Engine Arrangement listed on Page 12
Cylinder Head parts are shown on Page 24
CYLINDER HEAD
4N-0749 CYLINDER HEAD
CYLINDER HEAD (4N749 N/S)
Part of 4N2260 Cylinder Head Group shown on Page 23
DAMPER GP
GUARD GP-DAMPER
4N-9561 GUARD GP-DAMPER
4N9561 DAMPER GUARD GROUP
Only separate parts serviced
AN ATTACHMENT
DAMPER & PULLEY GP
4N-0761 DAMPER & PULLEY GP
4N761 PULLEY AND DAMPER GROUP
Part of 4N2239 Basic Engine Arrangement listed on Page 12
Only separate parts serviced
DRIVE GP-ACCESSORY
DRIVE GP-ACCESSORY
4N-2264 DRIVE GP-ACCESSORY
4N2264 ACCESSORY DRIVE GROUP--Type 1
AN ATTACHMENT
DRIVE GP-ACCESSORY
4N-2264 DRIVE GP-ACCESSORY
4N2264 ACCESSORY DRIVE GROUP--Type 2
AN ATTACHMENT
DRIVE GP-AUXILIARY
AUXILIARY DRIVE GROUP
4N-5293 AUXILIARY DRIVE GROUP
4N5293 AUXILIARY DRIVE GROUP--Forward--L.H. Front
Replaced by 7N8987 shown on Page 184A
DRIVE GP-AUXILIARY
4N-5294 DRIVE GP-AUXILIARY
4N5294 AUXILIARY DRIVE GROUP--Rearward--L.H. Front
DRIVE GP-AUXILIARY
7N-8987 DRIVE GP-AUXILIARY
7N8987 AUXILIARY DRIVE GROUP--Forward--L.H. Front
DRIVE GP-AUXILIARY
7N-8877 DRIVE GP-AUXILIARY
7N8877 AUXILIARY DRIVE GROUP--R.H. Front
AUXILIARY DRIVE GROUP
4N-5292 AUXILIARY DRIVE GROUP
4N5292 AUXILIARY DRIVE GROUP--R.H. Front
AUXILIARY DRIVE GROUP
6N-0322 AUXILIARY DRIVE GROUP
6N322 AUXILIARY DRIVE GROUP--R.H. Front
Replaced by 7N8877 shown on Page 184B
Serial No. 91U97-Up
DRIVE GP-PUMP
DRIVE GP-PUMP
4N-5319 DRIVE GP-PUMP
4N5319 HYDRAULIC PUMP DRIVE GROUP
FOR USE WITH HYDRAULIC STEERING PUMP
FLYWHEEL GP
FLYWHEEL GROUP
4N-0807 FLYWHEEL GROUP
4N807 FLYWHEEL GROUP--Factory Installation
Serial No. 91U1 to 91U75 inclusive
Part of 4N2239 Basic Engine Arrangement listed on Page 12
FLYWHEEL GP
4N-9620 FLYWHEEL GP
4N9620 FLYWHEEL GROUP--Factory Installation
Serial No. 91U76-Up
Part of 4N2239 Basic Engine Arrangement listed on Page 12
GEAR GP
HOUSING GP-FRONT
4N-3911 HOUSING GP-FRONT
4N3911 FRONT HOUSING GROUP
Serial No. 91U95-Up
HOUSING GP-FRONT
4N-3911 HOUSING GP-FRONT
4N3911 FRONT HOUSING GROUP
Serial No. 91U1 to 91U94 inclusive. Part of 4N2239 Basic Engine Arrangement
listed on Page 12. Only separate parts serviced
GEAR GP-FRONT TIMING
4N-2274 GEAR GP-FRONT TIMING
4N2274 FRONT GEAR GROUP--Timing
GUARD GP-BELT
GUARD GP-BELT
4N-9562 GUARD GP-BELT
4N9562 BELT GUARD GROUP
AN ATTACHMENT
HOUSING GP-FLYWHEEL
HOUSING GP-FLYWHEEL
4N-0732 HOUSING GP-FLYWHEEL
4N732 FLYWHEEL HOUSING GROUP
Part of 4N2239 Basic Engine Arrangement listed on Page 12
Only separate parts serviced
COVER GP-FLYWHEEL HOUSING
4N-4792 COVER GP-FLYWHEEL HOUSING
4N4792 FLYWHEEL HOUSING COVER GROUP
HOUSING GP-FRONT
HOUSING GP-FRONT
4N-3911 HOUSING GP-FRONT
4N3911 FRONT HOUSING GROUP
Serial No. 91U95-Up
HOUSING GP-FRONT
4N-3911 HOUSING GP-FRONT
4N3911 FRONT HOUSING GROUP
Serial No. 91U1 to 91U94 inclusive. Part of 4N2239 Basic Engine Arrangement
listed on Page 12. Only separate parts serviced
FASTENER GP-FRONT HOUSING
4N-6006 FASTENER GP-FRONT HOUSING
4N6006 FRONT HOUSING FASTENER GROUP
Part of 4N2239 Basic Engine Arrangement listed on Page 12
Only separate parts serviced
COVER GP-FRONT HOUSING
4N-5691 COVER GP-FRONT HOUSING
4N5691 FRONT COVER GROUP
Serial No. 91U1 to 91U80 inclusive
Part of 4N2239 Basic Engine Arrangement listed on Page 12
COVER GP-FRONT HOUSING
4N-5691 COVER GP-FRONT HOUSING
4N5691 FRONT COVER GROUP
Serial No. 91U81-Up
Part of 4N2239 Basic Engine Arrangement listed on Page 12
COVERS GP-ACCESSORY
4N-5295 COVERS GP-ACCESSORY
4N5295 ACCESSORY COVERS GROUP--L.H. Front--Rearward
USED WHEN A L.H. FRONT AUXILIARY OR HYDRAULIC PUMP IS USED ALONE
LIFTING GP-ENGINE
LIFTING GP
4N-1331 LIFTING GP
4N1331 LIFTING EYE GROUP
MOUNTING GP-ENGINE
SUPPORT GP-ENGINE
4N-1029 SUPPORT GP-ENGINE
4N1029 SUPPORT GROUP
PAN GP-OIL
PAN GP-OIL
4N-0756 PAN GP-OIL
4N756 OIL PAN GROUP
PISTON & ROD GP
PISTON & ROD GP
4N-0758 PISTON & ROD GP
4N758 CONNECTING ROD AND PISTON GROUP--6 Required
POWER TAKE-OFF GP
CLUTCH GP
3N-7841 CLUTCH GP
3N7841 CLUTCH GROUP--Power Take-Off
Part of 4N7198 Front Power Take-Off Group shown on Page 180B
POWER TAKE-OFF GP-FRONT
4N-7198 POWER TAKE-OFF GP-FRONT
4N7198 FRONT POWER TAKE-OFF GROUP--Single Clutch
3N7841 Clutch parts are shown on Page 180A
FRONT POWER TAKE-OFF GROUP
4N-0819 FRONT POWER TAKE-OFF GROUP
4N819 FRONT POWER TAKE-OFF GROUP--Double Clutch--Type 2
3N7842 Clutch parts are shown on Page 182A
FRONT POWER TAKE-OFF GROUP
4N-0819 FRONT POWER TAKE-OFF GROUP
4N819 FRONT POWER TAKE-OFF GROUP--Double Clutch
4N1502 Clutch parts are shown on Page 182
POWER TAKE-OFF GP-FRONT
4N-7198 POWER TAKE-OFF GP-FRONT
4N7198 FRONT POWER TAKE-OFF GROUP--Single Clutch
3N7149 Clutch parts are shown on Page 183
CLUTCH ASSEMBLY
4N-1502 CLUTCH ASSEMBLY
4N1502 CLUTCH ASSEMBLY
Specification No. 34163
Part of 4N819 Front Power Take-Off--Double Clutch shown on Page 181
CLUTCH GROUP
3N-7842 CLUTCH GROUP
3N7842 CLUTCH GROUP
Part of 4N819 Front Power Take-Off-Double Clutch shown on Page 180B
CLUTCH GROUP
3N-7149 CLUTCH GROUP
3N7149 CLUTCH GROUP
Specification No. 34610
Part of 4N7198 Front Power Take-Off--Single Clutch shown on Page 181
PULLEY GP
DAMPER & PULLEY GP
4N-0761 DAMPER & PULLEY GP
4N761 PULLEY AND DAMPER GROUP
Part of 4N2239 Basic Engine Arrangement listed on Page 12
Only separate parts serviced
SERPENTINE/V-BELTS
GUARD GP-BELT
4N-9562 GUARD GP-BELT
4N9562 BELT GUARD GROUP
AN ATTACHMENT
VALVE MECHANISM GP
VALVE MECHANISM GP
4N-2271 VALVE MECHANISM GP
4N2271 VALVE MECHANISM GROUP
ROCKER ARM GP
4N-1045 ROCKER ARM GP
4N1045 ROCKER ARM GROUP
Part of 4N2271 Valve Mechanism Group
COVER GP-VALVE MECHANISM
4N-2272 COVER GP-VALVE MECHANISM
4N2272 VALVE MECHANISM COVER GROUP

Information:

(For parts list, see above)

General Service Information
Tu-Flo 300 Compressor
AIR COMPRESSORS TU-FLO 300, 400, 500, 501, 600, 700 & 1000 C
Tu-Flo 400, 500, 1000 Compressors
AIR COMPRESSORS TU-FLO 300, 400, 500, 501, 600, 700 & 1000 C
Tu-Flo 501 Compressor
AIR COMPRESSORS TU-FLO 300, 400, 500, 501, 600, 700 & 1000 C
Tu-Flo 600 Compressor
AIR COMPRESSORS TU-FLO 300, 400, 500, 501, 600, 700 & 1000 C
Tu-Flo 700 Compressor
AIR COMPRESSORS TU-FLO 300, 400, 500, 501, 600, 700 & 1000 C
Specifications
Air Compressor Drive
3406 INDUSTRIAL & MARINE ENGINES
Service Magazine
Sleeve-Type Ring Compressors Can Be Used For Installation Of Pistons From The Bottom Of The Engine{0622}
1978/08/21
Specifications
Belt Tightener
3406 INDUSTRIAL & MARINE ENGINES
V-Belt Tension Chart
3406 INDUSTRIAL & MARINE ENGINES
Belt Tightener<BR> (3N9582)
3406 INDUSTRIAL & MARINE ENGINES
V-Belt Tension Chart
3406 INDUSTRIAL & MARINE ENGINES
Service Magazine
New Color Used For Fan Belt Tightener Spring{1358}
1984/06/04
Engine News
Reusability Of Camshaft Rollers And Roller Followers
1982/09/22
6V4869 Adapter And 6V6174 Plug Can Be Used To Install Camshaft Bearings
1982/12/15
New Recommendation For Oil Hole Location During Installation Of Camshaft Bearings
1984/05/16
New 8T2998 Lubricant Available
1986/03/01
Indications Of Engine Overspeeding When Only One Cam Lobe/Lifter Has Failed
1986/10/01
Additional Information For Checking Valve Camshaft Timing
1989/12/01
Remanufactured Camshafts And Cam Kits Available For Parts Service
1990/12/01
New Valve Lifter Assembly Provides Improved Lubrication Of Lifter Roller And Camshaft Lobes {1209,1210}
1994/06/01
Same Valve Camshaft Assembly Used On Direct Injection Engines Now Used On Engines That Have Precombustion Chambers
1977/01/28
Correct Installation Of Valve Lifters On The Camshaft Is Very Important To Prevent Failures
1977/05/25
Specifications
Camshaft
3406 INDUSTRIAL & MARINE ENGINES
Information Release Memo
PRODUCT LINE ADDITIONS: REMANUFACTURED SHORT AND LONG BLOCKS FOR VARIOUS APPLICATIONS
PRODUCT LINE ADDITIONS: REMANUFACTURED SHORT AND LONG BLOCKS FOR VARIOUS APPLICATIONS
APPEARANCE CHANGE ON REMAN SHORT BLOCKS
APPEARANCE CHANGE ON REMAN SHORT BLOCKS
Service Magazine
Reusability Of Camshaft Rollers And Roller Followers{1209,1210}
1982/09/06
6V4869 Adapter And 6V6174 Plug Can Be Used To Install Camshaft Bearings{1211,0621}
1982/11/22
New Recommendation For Oil Hole Location During Installation Of Camshaft Bearings{1211}
1984/05/07
Maximum Wear Limits Established For Camshaft Roller Followers{1209}
1985/09/30
New 8T2998 Lubricant Available{0645,1210}
1986/02/17
Same Valve Camshaft Assembly Used On Direct Injection Engines Now Used On Engines That Have Precombustion Chambers{1210}
1977/01/24
Correct Installation Of Valve Lifters On The Camshaft Is Very Important To Prevent Failures{1209}
1977/05/16
Additional Information For Checking Valve Camshaft Timing{1105,1110,1112,1121}
1989/12/11
Engine News
New &quot;L-Shaped&quot; Clutch Plates Now Used
1979/06/20
Service Magazine
New &quot;L-Shaped&quot; Clutch Plates Now Used{3302}
1979/06/04
Quick Disconnect Coupling On Optional Modification Of 5P4150 Nozzle Tester Permits Faster Exchange Of Adapters{0651,1254}
1979/09/03
Engine News
New Design Thrust Plate Used In Crankshaft Group
1979/08/22
New Bend Specification For Used Or Field Reground Crankshafts
1980/08/13
6V2086 And 6V2087 Seal And Wear Sleeve Installers Available
1980/09/10
Use 6V6035 Hardness Tester On Crankshafts
1982/02/24
Wider Crankshaft Gear Used
1982/10/20
6V6142 And 6V6143 Installers Can Be Used To Install Crankshaft Seals And Wear Sleeves
1982/11/10
New Crankshaft Seal Groups Used
1982/11/10
Procedure To Clean Oil Passages In Crankshafts And Cylinder Blocks
1983/05/25
Crankshaft Failures
1983/11/30
Remanufactured Undersize Crankshafts Are Available
1984/04/11
Install Crankshaft Thrust Bearings Correctly To Avoid Damage
1985/02/01
Why Choose Caterpillar Remanufactured Crankshafts? Because We Offer More ...
1985/09/01
Crankshaft Seal Usage On 3400 Series Engines
1986/01/01
Standard Diameter Crankshafts Meeting Marine Society Approval Requirements Are Available Through Caterpillar Remanufactured Products Program
1986/07/01
Caterpillar Crankshaft Heat Code Locations
1986/11/01
3400 Engine Major Component Performance Guide Available
1987/07/01
Checking Crankshaft Journal Surface Hardness On Remanufactured Crankshafts
1991/01/01
Oil Holes In Crankshaft Main And Rod Journals
1992/10/01
Recommendations For Inspection And Replacement Of Rubber and Viscous Crankshaft Dampers{1205}
1995/09/01
Points To Remember When Replacing A Viscous Crankshaft Damper Assembly With A Rubber Crankshaft Damper Assembly{1205}
1997/01/22
Installation Procedure For Crankshaft Wear Sleeves Changed
1977/09/07
Replacement Bearings Have Aluminum Alloy With More Strength
1977/10/26
Some Wobble Is Acceptable In Rubber Vibration Dampers For Crankshafts
1977/11/09
Replacement Seals And Wear Sleeves Now Available As A Crankshaft Seal Kit
1978/03/01
Specifications
Crankshaft
3406 INDUSTRIAL & MARINE ENGINES
Service Magazine
6V2086 And 6V2087 Seal And Wear Sleeve Installers Available{0622,1160,1161}
1980/09/01
New Connecting Rod And Main Bearings Have A Thicker Coating (Layer) Of Lead-Tin Overlay{1230,1219,1203}
1981/01/19
Engine Storage; Engine Start-Up After Storage{1000}
1982/02/22
Use 6V6035 Hardness Tester On Crankshafts{0651,1202}
1982/02/22
Use Correct Part Numbers For Main And Connecting Rod Bearings{1230,1203,1219}
1982/04/12
Inspection Marks On Bearings{7551,1230,1226,1203,1219,1227}
1982/05/03
Wider Crankshaft Gear Used{1202,1204,1206}
1982/10/11
New Crankshaft Seal Groups Used{1160,1161}
1982/11/01
Procedure To Clean Oil Passages In Crankshafts And Cylinder Blocks{0622,0675,1201,1202}
1983/05/16
Reuse Of Engine Bearings{1230}
1983/05/16
New Connecting Rod And Main Bearings Used{1203,1219,1226,1227,1230}
1983/10/10
Crankshaft Failures{1202,1230}
1983/11/21
Reuse Of Engine Bearings{1230,1219,1203}
1983/11/21
Remanufactured Undersize Crankshafts Are Available{1202}
1983/11/21
Install Crankshaft Thrust Bearings Correctly To Avoid Damage{1202,1203}
1985/02/11
Installing New Copper Bonded Bearings Can Extend Engine Life{1230,1203,1219}
1985/04/29
Remanufactured Crankshafts Are Available In Standard And Two Undersize Dimensions (U.S. and Canada){1202,7754}
1985/11/18
Crankshaft Seal Usage On 3400 Series Engines{1160,1161}
1985/12/16
Service Reminders For 3400 Family Of Diesel Engines{1204,1214,1331}
1986/05/05
Standard Diameter Crankshafts Meeting Marine Society Approval Requirements Are Available Through Caterpillar Remanufactured Products Program{1202}
1986/06/23
Bearing Failures On Engines Due To Lack Of Lubrication{1230,1219,1203,1202}
1986/09/08
Caterpillar Crankshaft Heat Code Locations{1202}
1986/10/20
Improved Main And Connecting Rod Bearings Have Aluminum Alloy With More Strength{1230}
1977/01/17
Installation Procedure For Crankshaft Wear Sleeves Changed{1202,1160,1161}
1977/09/05
Replacement Bearings Have Aluminum Alloy With More Strength{1203,1213,1230}
1977/10/24
Some Wobble Is Acceptable In Rubber Vibration Dampers For Crankshafts{1205}
1977/10/31
Crankshaft Support Groups Are Available To Measure Bent Crankshafts{0653,1202}
1977/11/07
Main And Connecting Rod Bearing Part Numbers {1203,1219,1230}
1987/01/26
Mid-Life Bearing Maintenance Recommendations {1203}
1987/09/14
Replacement Seals And Wear Sleeves Now Available As A Crankshaft Seal Kit{1202,1160,1161}
1978/02/27
Use New Main Bearings In Replacement Cylinder Blocks{1203,1201}
1978/06/12
Change In Procedure To Check Main Bearing Clearance{1203}
1978/08/28
New Centering Rings For Oversized Main Bearings{0665,1230}
1979/06/04
New Design Thrust Plate Used In Crankshaft Group{1201,1202,1203}
1979/08/27
Engine News
Remanufactured Short Blocks Are Available For Repairs Of Early 3406 Engines
1980/04/09
In The Future, Oversize And Undersize Connecting Rod And Main Bearings Will Have Size Identification Marks In Metric Units
1980/07/09
New Connecting Rod And Main Bearings Have A Thicker Coating (Layer) Of Lead-Tin Overlay
1981/01/21
Remove Piston Cooling Tubes Before Removal Of Pistons And Connecting Rods
1981/07/15
Check Bottom Surface Of Cylinder Liner Flange For Erosion And Wear
1981/11/25
New Cylinder Liners And O-Ring Seals Give Longer Seal Life
1981/12/16
Carbon Build-Up In Combustion And Inlet Areas
1982/04/07
Use Correct Part Numbers For Main And Connecting Rod Bearings
1982/05/12
Inspection Marks On Bearings
1982/05/12
Use FT1711 Light Table For Cylinder Liner Inspection
1982/12/15
New 6V7059 Micrometer Measures Liner Top Flange And Valve Lip
1982/12/15
6V4869 Adapter And 6V6174 Plug Can Be Used To Install Camshaft Bearings
1982/12/15
Dimensions For Reconditioning Cylinder Blocks, Cylinder Heads
1983/01/19
Procedure To Clean Oil Passages In Crankshafts And Cylinder Blocks
1983/05/25
Damaged Lifter Bores In 3400 Series Engines Can Be Used Again
1983/07/06
New Liner Seat Insert Available
1983/08/17
New Connecting Rod And Main Bearings Used
1983/11/30
Dimensions For Reconditioning Cylinder Blocks, Cylinder Heads
1984/05/16
New Recommendation For Oil Hole Location During Installation Of Camshaft Bearings
1984/05/16
New Cylinder Block Groups Used
1984/10/03
Install Crankshaft Thrust Bearings Correctly To Avoid Damage
1985/02/01
Substantial Price Reduction For Caterpillar Remanufactured Short Blocks
1985/06/01
Substantial Price Reduction For Caterpillar Remanufactured Short Blocks
1985/08/01
Effects Of Liner Wear In Engines Using Plasma Coated Top Rings
1985/12/01
New Cylinder Liner Available
1986/02/01
Main And Connecting Rod Bearing Part Numbers
1987/01/01
3400 Engine Major Component Performance Guide Available
1987/07/01
New Liner Seat Insert Available
1988/12/01
Thinner Spacer Plates Available For Parts Service
1992/06/01
Connecting Rod Bearing Eliminates The Need For Mid-Life Connecting Rod Bearing Roll-In
1992/08/01
New Liner Seat Inserts Available
1992/11/01
Cylinder Pack Puller Groups Improved
1993/01/01
Damper Requirements For Remanufactured Short Block
1993/08/01
Additional Parts Required For Remanufactured Short Block
1993/09/01
Be Sure Correct Piston Cooling Jets Are Installed{1331}
1994/12/01
New Material Used In O-Rings And Optional New Block Side Cover Replacement{1201}
1996/02/16
New Cylinder Liners
1977/01/28
Improved Main And Connecting Rod Bearings Have Aluminum Alloy With More Strength
1977/01/28
Modification To Holder To Machine Counterbore On Cylinder Block
1977/03/15
Clean Bolt Holes In Cylinder Block Before Cylinder Heads Are Installed
1977/07/13
5P8665 Cylinder Liner Puller Makes Liner Removal Easier And Faster
1978/01/18
New 5P8709 Piston Tool Group For The Alignment Of Piston Cooling Jets
1978/05/03
Use New Main Bearings In Replacement Cylinder Blocks
1978/07/05
Change In Procedure To Check Main Bearing Clearance
1978/08/30
Service Letter-NACD
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Service Letter-Australia
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Service Letter-CFEL
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Service Letter-CSARL
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Service Letter-Americas
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Service Letter-Brazil
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Service Letter-Truck/Ag/Marine
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Specifications
Cylinder Block
3406 INDUSTRIAL & MARINE ENGINES
Cylinder Liner
3406 INDUSTRIAL & MARINE ENGINES
Cylinder Liner Projection
3406 INDUSTRIAL & MARINE ENGINES
Bearings For Connecting Rods And Mains
3406 INDUSTRIAL & MARINE ENGINES
Tool Operating Manual
9U7990 Counter Bore Tool Group for 3176, 3300 and 3400 Series Engines{1201}
9U7990 Counter Bore Tool Group for 3176, 3300 and 3400 Series Engines{1201}
Service Letter-China
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Service Letter-Asia
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Information Release Memo
PRODUCT LINE ADDITIONS: REMANUFACTURED SHORT AND LONG BLOCKS FOR VARIOUS APPLICATIONS
PRODUCT LINE ADDITIONS: REMANUFACTURED SHORT AND LONG BLOCKS FOR VARIOUS APPLICATIONS
Service Letter-APD
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Service Magazine
Remanufactured Short Blocks Are Available For Repairs Of Early 3406 Engines{1201,1101,1102}
1980/03/31
New Connecting Rod And Main Bearings Have A Thicker Coating (Layer) Of Lead-Tin Overlay{1230,1219,1203}
1981/01/19
Remove Piston Cooling Tubes Before Removal Of Pistons And Connecting Rods{1214,1218,1201,1225,1307}
1981/07/13
Check Bottom Surface Of Cylinder Liner Flange For Erosion And Wear{1216,1201}
1981/11/16
New Cylinder Liners And O-Ring Seals Give Longer Seal Life{1216,1201,1213,1227}
1981/12/14
Use Of A Flex-Hone For Cylinder Liner Reconditioning{0664,0674,1216}
1981/12/21
Use Correct Part Numbers For Main And Connecting Rod Bearings{1230,1203,1219}
1982/04/12
Use New Special Instruction To Install 5P6595 Insert In Cylinder Liner Seats{1216,0621}
1982/05/03
Inspection Marks On Bearings{7551,1230,1226,1203,1219,1227}
1982/05/03
Service Information For Easier Use Of The 6V3100 Timing Indicator Group{0651,1250,1156,1157}
1982/10/11
Wider Crankshaft Gear Used{1202,1204,1206}
1982/10/11
6V4869 Adapter And 6V6174 Plug Can Be Used To Install Camshaft Bearings{1211,0621}
1982/11/22
Use FT1711 Light Table For Cylinder Liner Inspection {0652,1216}
1982/11/29
New 6V7059 Micrometer Measures Liner Top Flange And Valve Lip {0653,1216,1105}
1982/11/29
Dimensions For Reconditioning Cylinder Blocks, Cylinder Heads{1201,1101,1103,1105}
1982/12/20
Procedure To Clean Oil Passages In Crankshafts And Cylinder Blocks{0622,0675,1201,1202}
1983/05/16
Reuse Of Engine Bearings{1230}
1983/05/16
Damaged Lifter Bores In 3400 Series Engines Can Be Used Again{1201,0374}
1983/07/04
New Liner Seat Insert Available{1217}
1983/08/15
New Connecting Rod And Main Bearings Used{1203,1219,1226,1227,1230}
1983/10/10
Reuse Of Engine Bearings{1230,1219,1203}
1983/11/21
Dimensions For Reconditioning Cylinder Blocks, Cylinder Heads{1201,1101,1103,1105}
1984/04/23
New Recommendation For Oil Hole Location During Installation Of Camshaft Bearings{1211}
1984/05/07
Salvaging Cylinder Block Top Decks After Liner Seat Erosion{1201,1216,1217}
1984/06/04
New Cylinder Block Groups Used{1201}
1984/10/01
Install Crankshaft Thrust Bearings Correctly To Avoid Damage{1202,1203}
1985/02/11
Use Care When Handling Water Seals For Cylinder Head Spacer Plates{1115}
1985/07/15
Effects Of Liner Wear In Engines Using Plasma Coated Top Rings{1215,1216,7770}
1985/11/11
New Cylinder Liner Available{1201}
1986/02/10
Service Reminders For 3400 Family Of Diesel Engines{1204,1214,1331}
1986/05/05
Determining The Cause Of Glow Plug Tip Failures{1053,1105,1412}
1986/06/02
Indications Of Engine Overspeeding When Only One Cam Lobe/Lifter Has Failed{1000,1100,1200}
1986/09/08
Bearing Failures On Engines Due To Lack Of Lubrication{1230,1219,1203,1202}
1986/09/08
New Indicator Instrument Group Available To Measure Crankcase Blowby And Radiator Air Velocity{0781,1200,1350}
1986/10/27
New Cylinder Liners{1216}
1977/01/24
Clean Bolt Holes In Cylinder Block Before Cylinder Heads Are Installed{1101,1201}
1977/08/08
Replacement Bearings Have Aluminum Alloy With More Strength{1203,1213,1230}
1977/10/24
Main And Connecting Rod Bearing Part Numbers {1203,1219,1230}
1987/01/26
Additional Guidelines For Using The 8T2700 Blowby/Air Flow Indicator Group {0781,1200,1350}
1987/07/20
Recommendations For Preventing Cooling System Damage {1201}
1987/08/31
Mid-Life Bearing Maintenance Recommendations {1203}
1987/09/14
5P8665 Cylinder Liner Puller Makes Liner Removal Easier And Faster{0621,1216}
1978/01/09
Use New Main Bearings In Replacement Cylinder Blocks{1203,1201}
1978/06/12
New Information On Reusable Cylinder Liners{1216}
1978/06/19
New One-Piece Flywheel Housing Gasket{1157,1201}
1978/07/03
Change In Procedure To Check Main Bearing Clearance{1203}
1978/08/28
New Liner Seat Insert Available{1201,1216,1217}
1988/11/14
New Centering Rings For Oversized Main Bearings{0665,1230}
1979/06/04
Why Engines Are Damaged By Fuel Sulfur{1104,1216,1280,1318,1215}
1979/08/27
New Design Thrust Plate Used In Crankshaft Group{1201,1202,1203}
1979/08/27
Fuel Sulfur-Your Diesel's Silent Enemy{0375,1280}
1979/12/17
Improved Head Gasket Used; Summary Of Earlier Gaskets And Service Tips{1124,1216,1221}
1989/08/21
Engine News
Service Manual Information About Inside Diameters Of Valve Guides
1981/10/21
New Fuel Nozzle Adapter Assembly Used
1982/02/24
Reconditioning Of Bridge Wear Seat Is Permitted; Will Prevent Bridge Replacement When Not Necessary
1982/04/07
Carbon Build-Up In Combustion And Inlet Areas
1982/04/07
Improved Inlet And Exhaust Valves
1982/09/22
Fuel In The Cooling System Or Coolant In The Engine Oil Can Result From Cracked Fuel Nozzle Adapter
1982/10/20
Dimensions For Reconditioning Cylinder Blocks, Cylinder Heads
1983/01/19
Use Caution During Replacement Of Damaged Nozzle Adapters Or Precombustion Chambers
1983/01/19
Engine Valve Stem &quot;Use Again&quot; Specifications
1983/03/16
Valve Damage Can Be Caused By Short Intervals Of Engine Operation In Very Cold Temperatures
1983/10/26
New Valve Lifter Assemblies Used In Valve Mechanism Groups
1983/11/30
New Cylinder Head Assembly Made With A Different Material
1984/02/22
New Adapter Assemblies And Clamps Hold Fuel Nozzles In Position
1984/04/11
Dimensions For Reconditioning Cylinder Blocks, Cylinder Heads
1984/05/16
Surface Grinding Of Compacted Graphite Iron Cylinder Heads
1984/07/11
New Inlet Valves Used In Cylinder Heads
1984/09/12
New High Alloy Material Is Used In Cylinder Head Assemblies
1984/10/24
A New Book &quot;Analyzing Diesel And Natural Gas Engine Valve Failures&quot; Is Available
1985/03/01
Adjust Bridge Whenever Valve Clearance Adjustments Are Made
1986/04/01
Determining The Cause Of Glow Plug Tip Failures
1986/06/01
Valve Lash Adjustment Interval Is Changed
1986/07/01
Change To Interval For Valve Lash Adjustment
1987/02/01
Salvage Of Cylinder Heads By Using Oversized Valve Guides And Valve Inserts
1987/04/01
Silicone Rubber Water Seals Available
1987/07/01
High Alloy Cylinder Head Improved
1987/07/01
Improved Valve Mechanism Cover Groups
1988/01/01
Improved Head Gasket Used; Summary Of Earlier Gaskets And Service Tips
1989/08/01
Reconditioning Of Bridge Wear Seat Is Permitted; Will Prevent Bridge Replacement When Not Necessary
1990/05/01
New Exhaust Valves Are Used In Caterpillar Remanufactured Cylinder Heads
1990/10/01
Cylinder Head Gaskets Improved To Provide Better Fire Ring Retention{1124}
1994/02/01
Identification Of Intake And Exhaust Valves That May Be Used In Remanufactured Direct Injected 3400 Cylinder Heads{1105}
1994/04/18
New Intake And Exhaust Valves Used {1105,1100}
1994/06/01
New Rocker Arm Adjustment Screw Used To Adjust Valve Clearance {1123,1100}
1994/06/01
New Valve Lifter Assembly Provides Improved Lubrication Of Lifter Roller And Camshaft Lobes {1209,1210}
1994/06/01
New And Reconditioned Valve Projection Specifications{1105}
1995/09/01
Recommended Repairs After Cylinder Head Gasket Failure {1101}
1999/11/01
Improved Exhaust Valve Now Available
1977/03/15
Correct Installation Of Valve Lifters On The Camshaft Is Very Important To Prevent Failures
1977/05/25
5P7333 Tool Group Available For The Repair Of Loose Bridge Dowels On Cylinder Heads
1977/06/29
Clean Bolt Holes In Cylinder Block Before Cylinder Heads Are Installed
1977/07/13
Tolerance Added To Valve Clearance Specifications
1978/01/18
Use Again Specifications For Valve Springs Are Changed
1978/03/01
Remove Fuel Injection Nozzles Before The Bottom Surface Of A Cylinder Head Is Cleaned
1978/08/16
Specifications
Valves
3406 INDUSTRIAL & MARINE ENGINES
Cylinder Head
3406 INDUSTRIAL & MARINE ENGINES
Information Release Memo
PRODUCT LINE ADDITIONS: REMANUFACTURED SHORT AND LONG BLOCKS FOR VARIOUS APPLICATIONS
PRODUCT LINE ADDITIONS: REMANUFACTURED SHORT AND LONG BLOCKS FOR VARIOUS APPLICATIONS
APPEARANCE CHANGE ON REMAN SHORT BLOCKS
APPEARANCE CHANGE ON REMAN SHORT BLOCKS
Service Magazine
Use The Correct Water Temperature Contactor{1350,1100}
1980/02/11
Remanufactured Short Blocks Are Available For Repairs Of Early 3406 Engines{1201,1101,1102}
1980/03/31
Service Manual Information About Inside Diameters Of Valve Guides{1104,0374}
1981/10/05
New Fuel Nozzle Adapter Assembly Used{1106}
1982/02/15
Reconditioning of Bridge Wear Seat Is Permitted; Will Prevent Bridge Replacement When Not Necessary{1100}
1982/03/08
Carbon Build-Up In Combustion And Inlet Areas{1058,1101,1105,1214,1104}
1982/03/22
Vacuum Tester Checks For Leaks Between Valve Face and Seat{0651,1103,1105}
1982/09/06
Improved Inlet And Exhaust Valves{1105}
1982/09/06
New Instruction Card Available For 6V87 Valve Stem Gauge{0653}
1982/09/06
Fuel In The Cooling System Or Coolant In The Engine Oil Can Result From Cracked Fuel Nozzle Adapter{1106}
1982/10/18
New 6V7059 Micrometer Measures Liner Top Flange And Valve Lip {0653,1216,1105}
1982/11/29
Dimensions For Reconditioning Cylinder Blocks, Cylinder Heads{1201,1101,1103,1105}
1982/12/20
Engine Valve Stem &quot;Use Again&quot; Specifications{0653,1105}
1983/02/28
New Liner Seat Insert Available{1217}
1983/08/15
Valve Damage Can Be Caused By Short Intervals Of Engine Operation In Very Cold Temperatures{1105,1208}
1983/10/17
New Cylinder Head Assembly Made With A Different Material {1101}
1984/02/06
New Adapter Assemblies And Clamps Hold Fuel Nozzles In Position{1106,1252}
1984/04/09
Dimensions For Reconditioning Cylinder Blocks, Cylinder Heads{1201,1101,1103,1105}
1984/04/23
Surface Grinding Of Compacted Graphite Iron Cylinder Heads{1101}
1984/07/02
New Inlet Valve Used{1105}
1984/09/03
New High Alloy Material Is Used In Cylinder Head Assemblies{1101}
1984/10/15
Remanufactured Cylinder Head Groups{1100,1101,7554}
1984/11/19
Valve Lash Adjustment Not A Warranty Item {1102,1105}
1985/01/14
Use Care When Handling Water Seals For Cylinder Head Spacer Plates{1115}
1985/07/15
Adjust Bridge Whenever Valve Clearance Adjustments Are Made{1121,1105,1100}
1986/04/07
Determining The Cause Of Glow Plug Tip Failures{1053,1105,1412}
1986/06/02
Valve Lash Adjustment Interval Is Changed {1105}
1986/07/07
Indications Of Engine Overspeeding When Only One Cam Lobe/Lifter Has Failed{1000,1100,1200}
1986/09/08
Avoid Oil Contact With New Water Passage Seals Used In Cylinder Head Groups{1100}
1986/12/15
Same Valve Camshaft Assembly Used On Direct Injection Engines Now Used On Engines That Have Precombustion Chambers{1210}
1977/01/24
Improved Exhaust Valve Now Available{1105}
1977/02/28
Correct Installation Of Valve Lifters On The Camshaft Is Very Important To Prevent Failures{1209}
1977/05/16
Clean Bolt Holes In Cylinder Block Before Cylinder Heads Are Installed{1101,1201}
1977/08/08
Tools Now Available To Ream And/Or Hone 0.500&quot; (12.70 mm) Diameter Valve Guides{0663}
1977/08/22
Remanufactured Cylinder Heads For 3406 Engines{1100}
1987/03/16
Salvage Of Cylinder Heads By Using Oversized Valve Guides And Valve Inserts {1104,1103}
1987/03/30
Silicone Rubber Water Seals Available{1100}
1987/07/06
High Alloy Cylinder Head Improved{1101}
1987/07/06
Tolerance Added To Valve Clearance Specifications{1105,0374}
1978/01/16
Valve Damage Can Be Caused By Short Intervals Of Engine Operation In Very Cold Temperatures{1105,1208}
1978/01/30
Use Again Specifications For Valve Springs Are Changed{1108}
1978/03/06
Remove Fuel Injection Nozzles Before The Bottom Surface Of A Cylinder Head Is Cleaned{1254,1101}
1978/08/07
A New Method To Clean And Polish Engine Valve Stems{0674,1105}
1979/05/28
Why Engines Are Damaged By Fuel Sulfur{1104,1216,1280,1318,1215}
1979/08/27
Fuel Sulfur-Your Diesel's Silent Enemy{0375,1280}
1979/12/17
Improved Head Gasket Used; Summary Of Earlier Gaskets And Service Tips{1124,1216,1221}
1989/08/21
Additional Information For Checking Valve Camshaft Timing{1105,1110,1112,1121}
1989/12/11
Engine News
Damper Requirements For Remanufactured Short Block
1993/08/01
New Engine Crankshaft Rubber Damper Assembly Uses Improved Rubber Material {1205}
1994/10/01
Recommendations For Inspection And Replacement Of Rubber and Viscous Crankshaft Dampers{1205}
1995/09/01
Points To Remember When Replacing A Viscous Crankshaft Damper Assembly With A Rubber Crankshaft Damper Assembly{1205}
1997/01/22
Some Wobble Is Acceptable In Rubber Vibration Dampers For Crankshafts
1977/11/09
Improved Front Pulley And Damper Groups Use New Damper Adapter With Larger Diameter Bolt Circle For Pulley Bolts
1978/01/18
Service Magazine
Some Wobble Is Acceptable In Rubber Vibration Dampers For Crankshafts{1205}
1977/10/31
Correct Torque Value For Alternator Drive Pulley Retaining Nut Is Important{1405}
1987/11/23
Improved Front Pulley And Damper Groups Use New Damper Adapter With Larger Diameter Bolt Circle For Pulley Bolts{1205}
1978/01/16
8T5314 Socket Adapter Available To Correctly Install Alternator Pulley Nut {0601}
1988/01/25
Engine News
New And Improved Gaskets In Front Housing Group And Accessory Drive Group
1985/01/16
Hollow Dowel Relieves Accessory Drive Oil Leakage
1987/06/01
Procedure For Installing Steel Core Gasket At The Front Housing And The Flywheel Housing{1151,1157,1162}
1996/11/01
Specifications
Auxiliary Drive Groups
3406 INDUSTRIAL & MARINE ENGINES
Service Magazine
New And Improved Gaskets In Front Housing Group And Accessory Drive Group {1151,1150}
1985/01/14
Hollow Dowel Relieves Accessory Drive Oil Leakage{1207,1166}
1987/05/18
Engine News
New And Improved Gaskets In Front Housing Group And Accessory Drive Group
1985/01/16
Hollow Dowel Relieves Accessory Drive Oil Leakage
1987/06/01
Specifications
Auxiliary Drive Groups
3406 INDUSTRIAL & MARINE ENGINES
Service Magazine
New And Improved Gaskets In Front Housing Group And Accessory Drive Group {1151,1150}
1985/01/14
Hollow Dowel Relieves Accessory Drive Oil Leakage{1207,1166}
1987/05/18
Specifications
Fan Drive
3406 INDUSTRIAL & MARINE ENGINES
Service Magazine
New Color Used For Fan Belt Tightener Spring{1358}
1984/06/04
Engine News
New Springs For Timing Advance Used In Governor And Fuel Pump Drive Group
1981/12/16
Service Letter-NACD
Water Pumps In Parts Stock Need To Have The Coolant Seals Replaced And Certain Seals Need To Be Removed From Stock
Water Pumps In Parts Stock Need To Have The Coolant Seals Replaced And Certain Seals Need To Be Removed From Stock
Service Letter-Australia
Service Letter-CFEL
Service Letter-CSARL
Service Letter-Americas
Service Letter-Brazil
Service Letter-Truck/Ag/Marine
Service Letter-China
Service Letter-Asia
Service Letter-APD
Service Magazine
New Water Pump Has Improved Seal{1361}
1983/02/14
Use Vacuum Tester For Quality Control Check Of Water Pump Seal{0652,1361}
1983/02/28
New Plastic Impeller Will Help Improve Service Life Of Water Pump Seal{1361}
1984/01/23
Use Vacuum Tester For Quality Control Check Of Water Pump Seal{0768,1361}
1984/07/16
Inspection And Installation Procedures For Water Pump Shaft And Seals{1361,1389,1373}
1985/06/17
New, Corrosion Resistant Water Pump Shaft Available{1389,1361}
1985/08/05
Use Insert To Repair Bearing Seat In Water Pump Housing{1361}
1977/03/07
New Retainer And Improved Housing Keep Water Pump Bearing Tight; Repair For Loosened Bearing{1361}
1977/04/11
Replacement Seal Group For Water Pump Impeller Now Has All The Seal Parts Plus An Installation Tool{1361,0622}
1978/02/13
Service Letter-NACD
Water Pumps In Parts Stock Need To Have The Coolant Seals Replaced And Certain Seals Need To Be Removed From Stock
Water Pumps In Parts Stock Need To Have The Coolant Seals Replaced And Certain Seals Need To Be Removed From Stock
Service Letter-Australia
Service Letter-CFEL
Service Letter-CSARL
Service Letter-Americas
Service Letter-Brazil
Service Letter-Truck/Ag/Marine
Service Letter-China
Service Letter-Asia
Service Letter-APD
Service Magazine
New Water Pump Has Improved Seal{1361}
1983/02/14
Use Vacuum Tester For Quality Control Check Of Water Pump Seal{0652,1361}
1983/02/28
New Plastic Impeller Will Help Improve Service Life Of Water Pump Seal{1361}
1984/01/23
New, Corrosion Resistant Water Pump Shaft Available{1389,1361}
1985/08/05
Use Insert To Repair Bearing Seat In Water Pump Housing{1361}
1977/03/07
New Retainer And Improved Housing Keep Water Pump Bearing Tight; Repair For Loosened Bearing{1361}
1977/04/11
Replacement Seal Group For Water Pump Impeller Now Has All The Seal Parts Plus An Installation Tool{1361,0622}
1978/02/13
Real Value Available Through Caterpillar Remanufacturing Programs{0374}
1980/02/04
Engine Storage; Engine Start-Up After Storage{1000}
1982/02/22
Separate Valve Stem Gauges Available{0653,1000}
1982/06/07
Analyzing A Major Engine Failure{1000}
1982/07/19
Added Methods To Decrease The Effects Of High Sulfur Fuels{1355,1280,1318,1000}
1982/08/30
Reference Chart for Engine Improvements{0374,1000}
1982/10/25
New Color Used For Fan Belt Tightener Spring{1358}
1984/06/04
New Index Lists Engine Special Instructions By SMCS Code{1000,0374}
1986/04/07
Indications Of Engine Overspeeding When Only One Cam Lobe/Lifter Has Failed{1000,1100,1200}
1986/09/08
New Indicator Instrument Group Available To Measure Crankcase Blowby And Radiator Air Velocity{0781,1200,1350}
1986/10/27
Modification To Prevent Starter From Remaining Engaged With Flywheel After Engine Starts{1400,1450}
1987/03/16
Testing The Starter On The Engine{1401,1450}
1987/05/04
The Caterpillar Fuel Flow Monitor System Available {0782,1000,1250}
1987/05/11
Remanufactured Heavy-Duty Starters And High-Amp Alternators{1405,1453}
1987/05/25
Microfiche For Replacement Engine Bills Of Material {0374,1000}
1987/10/26
Explanation Of Nomenclature Used In Engine Performance{1000,0374}
1978/05/15
Sleeve-Type Ring Compressors Can Be Used For Installation Of Pistons From The Bottom Of The Engine{0622}
1978/08/21
Careful, Correct Installation And Maintenance Of Fuel Injection Lines Is Very Important To Prevent Possible Engine Damage, Fire And Other Problems{1252}
1979/04/23
Cranking Speeds Necessary To Start Diesel Engines{0374,1000,1450}
1979/09/24
Check The Radiator Fan Spider Assembly When Doing Yearly General Maintenance{1356}
1989/07/24
Engine Coolant Can Be Recycled{1395}
1989/11/13
Engine News
Modification To Prevent Starter From Remaining Engaged With Flywheel After Engine Starts
1987/03/01
New Plug And O-Ring Can Help Prevent Oil Leakage At The Flywheel Housing Gasket
1992/09/01
Procedure For Installing Steel Core Gasket At The Front Housing And The Flywheel Housing{1151,1157,1162}
1996/11/01
New One-Piece Flywheel Housing Gasket
1978/07/05
Service Letter-NACD
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Service Letter-Australia
Service Letter-CFEL
Service Letter-CSARL
Service Letter-Americas
Service Letter-Brazil
Service Letter-Truck/Ag/Marine
Specifications
Idler Gear Assembly
3406 INDUSTRIAL & MARINE ENGINES
Flywheel Housing Bore
3406 INDUSTRIAL & MARINE ENGINES
Flywheel Housing Runout
3406 INDUSTRIAL & MARINE ENGINES
Flywheel Runout
3406 INDUSTRIAL & MARINE ENGINES
Flywheel
3406 INDUSTRIAL & MARINE ENGINES
Flywheel Housing
3406 INDUSTRIAL & MARINE ENGINES
Flywheels
3406 INDUSTRIAL & MARINE ENGINES
Service Letter-China
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Service Letter-Asia
Service Letter-APD
Service Magazine
Engine Storage; Engine Start-Up After Storage{1000}
1982/02/22
Service Information For Easier Use Of The 6V3100 Timing Indicator Group{0651,1250,1156,1157}
1982/10/11
Wider Crankshaft Gear Used{1202,1204,1206}
1982/10/11
Service Reminders For 3400 Family Of Diesel Engines{1204,1214,1331}
1986/05/05
Modification To Prevent Starter From Remaining Engaged With Flywheel After Engine Starts{1400,1450}
1987/03/16
New One-Piece Flywheel Housing Gasket{1157,1201}
1978/07/03
Engine News
New And Improved Gaskets In Front Housing Group And Accessory Drive Group
1985/01/16
Procedure For Installing Steel Core Gasket At The Front Housing And The Flywheel Housing{1151,1157,1162}
1996/11/01
Checking The Alignment Of Timing Gear Marks On 3406 Engines{1206}
1997/01/22
Specifications
Timing Gears
3406 INDUSTRIAL & MARINE ENGINES
Idler Gear Assembly
3406 INDUSTRIAL & MARINE ENGINES
Timing Gear Housing
3406 INDUSTRIAL & MARINE ENGINES
Service Magazine
6V3100 Diesel Timing Indicator Group Available To Check Engine/Fuel System Timing And Mechanical Advance During Operation{0653,1206,1156}
1981/08/31
Engine Storage; Engine Start-Up After Storage{1000}
1982/02/22
Wider Crankshaft Gear Used{1202,1204,1206}
1982/10/11
New And Improved Gaskets In Front Housing Group And Accessory Drive Group {1151,1150}
1985/01/14
Service Reminders For 3400 Family Of Diesel Engines{1204,1214,1331}
1986/05/05
Hollow Dowel Relieves Accessory Drive Oil Leakage{1207,1166}
1987/05/18
Engine News
New Plug And O-Ring Can Help Prevent Oil Leakage At The Flywheel Housing Gasket
1992/09/01
Procedure For Installing Steel Core Gasket At The Front Housing And The Flywheel Housing{1151,1157,1162}
1996/11/01
New One-Piece Flywheel Housing Gasket
1978/07/05
Service Letter-NACD
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Service Letter-Australia
Service Letter-CFEL
Service Letter-CSARL
Service Letter-Americas
Service Letter-Brazil
Service Letter-Truck/Ag/Marine
Specifications
Flywheel Housing Bore
3406 INDUSTRIAL & MARINE ENGINES
Flywheel Housing Runout
3406 INDUSTRIAL & MARINE ENGINES
Flywheel Housing
3406 INDUSTRIAL & MARINE ENGINES
Service Letter-China
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Service Letter-Asia
Service Letter-APD
Service Magazine
Correct Use Of 6V2023 Flow Check Adapter Group Is Important To Prevent Damage To An Engine{0651,0654,1250}
1982/03/22
Service Information For Easier Use Of The 6V3100 Timing Indicator Group{0651,1250,1156,1157}
1982/10/11
Check 5P7435 Tee Adapter Groups In The 6V3100 Engine Timing Indicator Groups{0782}
1985/06/03
New One-Piece Flywheel Housing Gasket{1157,1201}
1978/07/03
Use The 6V2034 Micrometer Adapter To Measure Lip Thickness Of Engine Valves {0653,1105}
1979/10/29
Engine News
New And Improved Gaskets In Front Housing Group And Accessory Drive Group
1985/01/16
Procedure For Installing Steel Core Gasket At The Front Housing And The Flywheel Housing{1151,1157,1162}
1996/11/01
Specifications
Idler Gear Assembly
3406 INDUSTRIAL & MARINE ENGINES
Timing Gear Housing
3406 INDUSTRIAL & MARINE ENGINES
Service Magazine
6V3100 Diesel Timing Indicator Group Available To Check Engine/Fuel System Timing And Mechanical Advance During Operation{0653,1206,1156}
1981/08/31
Wider Crankshaft Gear Used{1202,1204,1206}
1982/10/11
New And Improved Gaskets In Front Housing Group And Accessory Drive Group {1151,1150}
1985/01/14
Hollow Dowel Relieves Accessory Drive Oil Leakage{1207,1166}
1987/05/18
Improved Front Pulley And Damper Groups Use New Damper Adapter With Larger Diameter Bolt Circle For Pulley Bolts{1205}
1978/01/16
Engine News
New &quot;L-Shaped&quot; Clutch Plates Now Used
1979/06/20
Engine Front Support Now Machined To Prevent Possible Failure Of The Support Brackets For The Power Takeoff
1979/07/04
New Design Thrust Plate Used In Crankshaft Group
1979/08/22
Remanufactured Short Blocks Are Available For Repairs Of Early 3406 Engines
1980/04/09
In The Future, Oversize And Undersize Connecting Rod And Main Bearings Will Have Size Identification Marks In Metric Units
1980/07/09
New Bend Specification For Used Or Field Reground Crankshafts
1980/08/13
6V2086 And 6V2087 Seal And Wear Sleeve Installers Available
1980/09/10
Reference List Of Pistons Used With The Different Types Of Connecting Rods
1980/09/10
Check For Correct Spring Retainer On Oil Pump Bypass Valve When Oil Pan Is Removed
1980/11/12
Remove Piston Cooling Tubes Before Removal Of Pistons And Connecting Rods
1981/07/15
New Piston Pin Retainer Used
1982/02/10
6V6142 And 6V6143 Installers Can Be Used To Install Crankshaft Seals And Wear Sleeves
1982/11/10
New Crankshaft Seal Groups Used
1982/11/10
Dimensions For Reconditioning Cylinder Blocks, Cylinder Heads
1983/01/19
Use Caution During Replacement Of Damaged Nozzle Adapters Or Precombustion Chambers
1983/01/19
Crankshaft Seal Usage On 3400 Series Engines
1986/01/01
New Cylinder Liners
1977/01/28
Same Valve Camshaft Assembly Used On Direct Injection Engines Now Used On Engines That Have Precombustion Chambers
1977/01/28
Improved Main And Connecting Rod Bearings Have Aluminum Alloy With More Strength
1977/01/28
Improved Exhaust Valve Now Available
1977/03/15
Modification To Holder To Machine Counterbore On Cylinder Block
1977/03/15
New Piston Pin Bearing Used In Connecting Rod Assembly
1977/04/22
Correct Installation Of Valve Lifters On The Camshaft Is Very Important To Prevent Failures
1977/05/25
5P7333 Tool Group Available For The Repair Of Loose Bridge Dowels On Cylinder Heads
1977/06/29
Installation Procedure For Crankshaft Wear Sleeves Changed
1977/09/07
Stronger Piston Is Used; Piston And Connecting Rod Are Tapered In Area Of Piston Pin
1977/09/28
Replacement Bearings Have Aluminum Alloy With More Strength
1977/10/26
Some Wobble Is Acceptable In Rubber Vibration Dampers For Crankshafts
1977/11/09
Improved Front Pulley And Damper Groups Use New Damper Adapter With Larger Diameter Bolt Circle For Pulley Bolts
1978/01/18
Tolerance Added To Valve Clearance Specifications
1978/01/18
5P8665 Cylinder Liner Puller Makes Liner Removal Easier And Faster
1978/01/18
Replacement Seals And Wear Sleeves Now Available As A Crankshaft Seal Kit
1978/03/01
Use Again Specifications For Valve Springs Are Changed
1978/03/01
Stronger Piston And Connecting Rod Are Tapered In Area Of Piston Pin
1978/03/01
New 5P8709 Piston Tool Group For The Alignment Of Piston Cooling Jets
1978/05/03
Remove Fuel Injection Nozzles Before The Bottom Surface Of A Cylinder Head Is Cleaned
1978/08/16
Change In Procedure To Check Main Bearing Clearance
1978/08/30
Service Letter-NACD
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Water Pumps In Parts Stock Need To Have The Coolant Seals Replaced And Certain Seals Need To Be Removed From Stock
Water Pumps In Parts Stock Need To Have The Coolant Seals Replaced And Certain Seals Need To Be Removed From Stock
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Service Letter-Australia
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Water Pumps In Parts Stock Need To Have The Coolant Seals Replaced And Certain Seals Need To Be Removed From Stock
Water Pumps In Parts Stock Need To Have The Coolant Seals Replaced And Certain Seals Need To Be Removed From Stock
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Service Letter-CFEL
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Water Pumps In Parts Stock Need To Have The Coolant Seals Replaced And Certain Seals Need To Be Removed From Stock
Water Pumps In Parts Stock Need To Have The Coolant Seals Replaced And Certain Seals Need To Be Removed From Stock
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Service Letter-CSARL
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Water Pumps In Parts Stock Need To Have The Coolant Seals Replaced And Certain Seals Need To Be Removed From Stock
Water Pumps In Parts Stock Need To Have The Coolant Seals Replaced And Certain Seals Need To Be Removed From Stock
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Service Letter-Americas
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Water Pumps In Parts Stock Need To Have The Coolant Seals Replaced And Certain Seals Need To Be Removed From Stock
Water Pumps In Parts Stock Need To Have The Coolant Seals Replaced And Certain Seals Need To Be Removed From Stock
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Service Letter-Brazil
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Water Pumps In Parts Stock Need To Have The Coolant Seals Replaced And Certain Seals Need To Be Removed From Stock
Water Pumps In Parts Stock Need To Have The Coolant Seals Replaced And Certain Seals Need To Be Removed From Stock
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Service Letter-Truck/Ag/Marine
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Water Pumps In Parts Stock Need To Have The Coolant Seals Replaced And Certain Seals Need To Be Removed From Stock
Water Pumps In Parts Stock Need To Have The Coolant Seals Replaced And Certain Seals Need To Be Removed From Stock
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Specifications
Valve Rocker Arms, Lifters, Bridges And Cover
3406 INDUSTRIAL & MARINE ENGINES
Camshaft
3406 INDUSTRIAL & MARINE ENGINES
Idler Gear Assembly
3406 INDUSTRIAL & MARINE ENGINES
Fan Drive
3406 INDUSTRIAL & MARINE ENGINES
V-Belt Tension Chart
3406 INDUSTRIAL & MARINE ENGINES
Air Compressor Drive
3406 INDUSTRIAL & MARINE ENGINES
Cylinder Block
3406 INDUSTRIAL & MARINE ENGINES
Cylinder Liner
3406 INDUSTRIAL & MARINE ENGINES
Cylinder Liner Projection
3406 INDUSTRIAL & MARINE ENGINES
Pistons And Rings
3406 INDUSTRIAL & MARINE ENGINES
Bearings For Connecting Rods And Mains
3406 INDUSTRIAL & MARINE ENGINES
Flywheel Housing Bore
3406 INDUSTRIAL & MARINE ENGINES
Flywheel Housing Runout
3406 INDUSTRIAL & MARINE ENGINES
Flywheel Runout
3406 INDUSTRIAL & MARINE ENGINES
Flywheel
3406 INDUSTRIAL & MARINE ENGINES
Flywheel Housing
3406 INDUSTRIAL & MARINE ENGINES
Flywheels
3406 INDUSTRIAL & MARINE ENGINES
V-Belt Tension Chart
3406 INDUSTRIAL & MARINE ENGINES
Auxiliary Drive Groups
3406 INDUSTRIAL & MARINE ENGINES
Tool Operating Manual
9U7990 Counter Bore Tool Group for 3176, 3300 and 3400 Series Engines{1201}
9U7990 Counter Bore Tool Group for 3176, 3300 and 3400 Series Engines{1201}
Service Letter-China
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Water Pumps In Parts Stock Need To Have The Coolant Seals Replaced And Certain Seals Need To Be Removed From Stock
Water Pumps In Parts Stock Need To Have The Coolant Seals Replaced And Certain Seals Need To Be Removed From Stock
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Service Letter-Asia
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Water Pumps In Parts Stock Need To Have The Coolant Seals Replaced And Certain Seals Need To Be Removed From Stock
Water Pumps In Parts Stock Need To Have The Coolant Seals Replaced And Certain Seals Need To Be Removed From Stock
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Service Letter-APD
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Water Pumps In Parts Stock Need To Have The Coolant Seals Replaced And Certain Seals Need To Be Removed From Stock
Water Pumps In Parts Stock Need To Have The Coolant Seals Replaced And Certain Seals Need To Be Removed From Stock
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Service Magazine
Real Value Available Through Caterpillar Remanufacturing Programs{0374}
1980/02/04
Remanufactured Short Blocks Are Available For Repairs Of Early 3406 Engines{1201,1101,1102}
1980/03/31
Changes To Oil Level Gauge Group Improve Accuracy Of Oil Level Indications, Increase Oil Capacity Of 245 Excavators And Front Shovels{1300}
1980/05/12
6V2086 And 6V2087 Seal And Wear Sleeve Installers Available{0622,1160,1161}
1980/09/01
Check For Correct Spring Retainer On Oil Pump Bypass Valve When Oil Pan Is Removed{1315,1302}
1980/11/17
Later Pistons Have A Smaller Number Of Drain Holes In Oil Ring Groove{1214,1213}
1981/02/23
6V3100 Diesel Timing Indicator Group Available To Check Engine/Fuel System Timing And Mechanical Advance During Operation{0653,1206,1156}
1981/08/31
Service Manual Information About Inside Diameters Of Valve Guides{1104,0374}
1981/10/05
Check Bottom Surface Of Cylinder Liner Flange For Erosion And Wear{1216,1201}
1981/11/16
New Cylinder Liners And O-Ring Seals Give Longer Seal Life{1216,1201,1213,1227}
1981/12/14
Use Of A Flex-Hone For Cylinder Liner Reconditioning{0664,0674,1216}
1981/12/21
Piston And Connecting Rod Assembly Storage Cabinet{0600}
1982/01/18
New Piston Pin Retainer Used{1214,1225}
1982/02/08
Engine Storage; Engine Start-Up After Storage{1000}
1982/02/22
Use 6V6035 Hardness Tester On Crankshafts{0651,1202}
1982/02/22
Reconditioning of Bridge Wear Seat Is Permitted; Will Prevent Bridge Replacement When Not Necessary{1100}
1982/03/08
Correct Use Of 6V2023 Flow Check Adapter Group Is Important To Prevent Damage To An Engine{0651,0654,1250}
1982/03/22
Use Correct Part Numbers For Main And Connecting Rod Bearings{1230,1203,1219}
1982/04/12
Separate Valve Stem Gauges Available{0653,1000}
1982/06/07
Added Methods To Decrease The Effects Of High Sulfur Fuels{1355,1280,1318,1000}
1982/08/30
Reusability Of Camshaft Rollers And Roller Followers{1209,1210}
1982/09/06
Service Information For Easier Use Of The 6V3100 Timing Indicator Group{0651,1250,1156,1157}
1982/10/11
Wider Crankshaft Gear Used{1202,1204,1206}
1982/10/11
Fuel In The Cooling System Or Coolant In The Engine Oil Can Result From Cracked Fuel Nozzle Adapter{1106}
1982/10/18
Reference Chart for Engine Improvements{0374,1000}
1982/10/25
New Crankshaft Seal Groups Used{1160,1161}
1982/11/01
Use 6V6147 Polishing Wheel To Clean Piston Pins{0675,1214}
1982/11/08
6V4869 Adapter And 6V6174 Plug Can Be Used To Install Camshaft Bearings{1211,0621}
1982/11/22
Use the 6V6167 Contact Point to Measure Wear Steps on Piston Pins{0653}
1982/11/22
New Piston Group Has A Thicker Top Ring{1215,1214,1213,1225,1226,1227}
1982/12/13
Dimensions For Reconditioning Cylinder Blocks, Cylinder Heads{1201,1101,1103,1105}
1982/12/20
New Water Pump Has Improved Seal{1361}
1983/02/14
Engine Valve Stem &quot;Use Again&quot; Specifications{0653,1105}
1983/02/28
Use Vacuum Tester For Quality Control Check Of Water Pump Seal{0652,1361}
1983/02/28
New Bolt Used In Front Engine Support{1154}
1983/03/21
Procedure To Clean Oil Passages In Crankshafts And Cylinder Blocks{0622,0675,1201,1202}
1983/05/16
Reuse Of Engine Bearings{1230}
1983/05/16
Damaged Lifter Bores In 3400 Series Engines Can Be Used Again{1201,0374}
1983/07/04
Parts Service Information For Pistons, Connecting Rods, Piston Pins And Rings{1214,1225,1215,1218}
1983/09/12
Valve Damage Can Be Caused By Short Intervals Of Engine Operation In Very Cold Temperatures{1105,1208}
1983/10/17
New Valve Lifter Assemblies Used In Valve Mechanism Groups{1209}
1983/10/31
Crankshaft Failures{1202,1230}
1983/11/21
Reuse Of Engine Bearings{1230,1219,1203}
1983/11/21
Remanufactured Undersize Crankshafts Are Available{1202}
1983/11/21
New Plastic Impeller Will Help Improve Service Life Of Water Pump Seal{1361}
1984/01/23
Repair Of Drain Plug Threads In Oil Pan{1302}
1984/04/23
Dimensions For Reconditioning Cylinder Blocks, Cylinder Heads{1201,1101,1103,1105}
1984/04/23
New Recommendation For Oil Hole Location During Installation Of Camshaft Bearings{1211}
1984/05/07
Salvaging Cylinder Block Top Decks After Liner Seat Erosion{1201,1216,1217}
1984/06/04
New Color Used For Fan Belt Tightener Spring{1358}
1984/06/04
Use Vacuum Tester For Quality Control Check Of Water Pump Seal{0768,1361}
1984/07/16
New Cylinder Block Groups Used{1201}
1984/10/01
Install Crankshaft Thrust Bearings Correctly To Avoid Damage{1202,1203}
1985/02/11
Installing New Copper Bonded Bearings Can Extend Engine Life{1230,1203,1219}
1985/04/29
Be Sure Correct Piston Rings Are Used On 3400 Series Engines{1215,1214}
1985/05/06
Use Caterpillar 6V50 Engine Timing Indicator For Accurate Readings{0782,0785,0775}
1985/05/27
Check 5P7435 Tee Adapter Groups In The 6V3100 Engine Timing Indicator Groups{0782}
1985/06/03
Inspection And Installation Procedures For Water Pump Shaft And Seals{1361,1389,1373}
1985/06/17
Use Care When Handling Water Seals For Cylinder Head Spacer Plates{1115}
1985/07/15
Maximum Wear Limits Established For Camshaft Roller Followers{1209}
1985/09/30
Two, New Top Dead Center Magnetic Transducers Available{0651,0653,1214,1250}
1985/10/07
Effects Of Liner Wear In Engines Using Plasma Coated Top Rings{1215,1216,7770}
1985/11/11
Two Different Piston Oil Ring Designs Used{1215}
1985/11/11
Remanufactured Crankshafts Are Available In Standard And Two Undersize Dimensions (U.S. and Canada){1202,7754}
1985/11/18
Crankshaft Seal Usage On 3400 Series Engines{1160,1161}
1985/12/16
New Cylinder Liner Available{1201}
1986/02/10
New 8T2998 Lubricant Available{0645,1210}
1986/02/17
Adjust Bridge Whenever Valve Clearance Adjustments Are Made{1121,1105,1100}
1986/04/07
New Index Lists Engine Special Instructions By SMCS Code{1000,0374}
1986/04/07
Service Reminders For 3400 Family Of Diesel Engines{1204,1214,1331}
1986/05/05
Increase Piston Reuse With Keystone Piston Ring Gauge Group{1214,1215}
1986/06/16
Indications Of Engine Overspeeding When Only One Cam Lobe/Lifter Has Failed{1000,1100,1200}
1986/09/08
Bearing Failures On Engines Due To Lack Of Lubrication{1230,1219,1203,1202}
1986/09/08
Check Connecting Rods After Engine Failures Involving Hydraulic Lock{1218,1225}
1986/10/20
New Indicator Instrument Group Available To Measure Crankcase Blowby And Radiator Air Velocity{0781,1200,1350}
1986/10/27
Avoid Oil Contact With New Water Passage Seals Used In Cylinder Head Groups{1100}
1986/12/15
Same Valve Camshaft Assembly Used On Direct Injection Engines Now Used On Engines That Have Precombustion Chambers{1210}
1977/01/24
New Cylinder Liners{1216}
1977/01/24
Improved Exhaust Valve Now Available{1105}
1977/02/28
Use Insert To Repair Bearing Seat In Water Pump Housing{1361}
1977/03/07
New Retainer And Improved Housing Keep Water Pump Bearing Tight; Repair For Loosened Bearing{1361}
1977/04/11
New Piston Pin Bearing Used In Connecting Rod Assembly{1218}
1977/04/25
Correct Adjustment Of Fuel Shut-Off Solenoid Shaft Can Prevent Failures{1259}
1977/08/08
Clean Bolt Holes In Cylinder Block Before Cylinder Heads Are Installed{1101,1201}
1977/08/08
Tools Now Available To Ream And/Or Hone 0.500&quot; (12.70 mm) Diameter Valve Guides{0663}
1977/08/22
Installation Procedure For Crankshaft Wear Sleeves Changed{1202,1160,1161}
1977/09/05
Stronger Piston Is Used; Piston And Connecting Rod Are Tapered In Area Of Piston Pin{1213,1214,1218}
1977/09/19
Replacement Bearings Have Aluminum Alloy With More Strength{1203,1213,1230}
1977/10/24
Some Wobble Is Acceptable In Rubber Vibration Dampers For Crankshafts{1205}
1977/10/31
Crankshaft Support Groups Are Available To Measure Bent Crankshafts{0653,1202}
1977/11/07
Modification To Prevent Starter From Remaining Engaged With Flywheel After Engine Starts{1400,1450}
1987/03/16
Improved High Idle Display Of The 6V3100 And 8T5300/8T5301 Engine Timing Indicator Groups{0781}
1987/03/16
Remanufactured Cylinder Heads For 3406 Engines{1100}
1987/03/16
The Caterpillar Fuel Flow Monitor System Available {0782,1000,1250}
1987/05/11
Hollow Dowel Relieves Accessory Drive Oil Leakage{1207,1166}
1987/05/18
Recommendations For Reusability Of Pistons With Crater Rim Cracks{1214}
1987/06/29
Additional Guidelines For Using The 8T2700 Blowby/Air Flow Indicator Group {0781,1200,1350}
1987/07/20
Recommendations For Preventing Cooling System Damage {1201}
1987/08/31
Mid-Life Bearing Maintenance Recommendations {1203}
1987/09/14
Microfiche For Replacement Engine Bills Of Material {0374,1000}
1987/10/26
Correct Torque Value For Alternator Drive Pulley Retaining Nut Is Important{1405}
1987/11/23
5P8665 Cylinder Liner Puller Makes Liner Removal Easier And Faster{0621,1216}
1978/01/09
Improved Front Pulley And Damper Groups Use New Damper Adapter With Larger Diameter Bolt Circle For Pulley Bolts{1205}
1978/01/16
Tolerance Added To Valve Clearance Specifications{1105,0374}
1978/01/16
Valve Damage Can Be Caused By Short Intervals Of Engine Operation In Very Cold Temperatures{1105,1208}
1978/01/30
Replacement Seals And Wear Sleeves Now Available As A Crankshaft Seal Kit{1202,1160,1161}
1978/02/27
Stronger Piston And Connecting Rod Are Tapered In Area Of Piston Pin{1213,1214,1218}
1978/03/06
Use Again Specifications For Valve Springs Are Changed{1108}
1978/03/06
Use 6V100 Tool Arrangement To Remove And Install Piston Pin Bearings For Both Tapered And Standard Connecting Rods{0620,1218}
1978/04/24
Explanation Of Nomenclature Used In Engine Performance{1000,0374}
1978/05/15
Use New Main Bearings In Replacement Cylinder Blocks{1203,1201}
1978/06/12
New One-Piece Flywheel Housing Gasket{1157,1201}
1978/07/03
Sleeve-Type Ring Compressors Can Be Used For Installation Of Pistons From The Bottom Of The Engine{0622}
1978/08/21
Change In Procedure To Check Main Bearing Clearance{1203}
1978/08/28
New Liner Seat Insert Available{1201,1216,1217}
1988/11/14
New 6V87 Gauge Measures Valve Stem Wear{0653,1105}
1979/01/08
Current Chart For Dynamometer Adapters{0651,1000}
1979/01/22
5P3519 Piston Ring Gauge Has Improved Design For Better Accuracy And Easier Use; Corrected Information For Use On Pistons That Have Two Ring Grooves{0653,1214}
1979/05/14
A New Method To Clean And Polish Engine Valve Stems{0674,1105}
1979/05/28
New &quot;L-Shaped&quot; Clutch Plates Now Used{3302}
1979/06/04
New Centering Rings For Oversized Main Bearings{0665,1230}
1979/06/04
Why Engines Are Damaged By Fuel Sulfur{1104,1216,1280,1318,1215}
1979/08/27
New Design Thrust Plate Used In Crankshaft Group{1201,1202,1203}
1979/08/27
Quick Disconnect Coupling On Optional Modification Of 5P4150 Nozzle Tester Permits Faster Exchange Of Adapters{0651,1254}
1979/09/03
Cranking Speeds Necessary To Start Diesel Engines{0374,1000,1450}
1979/09/24
Fuel Sulfur-Your Diesel's Silent Enemy{0375,1280}
1979/12/17
Check The Radiator Fan Spider Assembly When Doing Yearly General Maintenance{1356}
1989/07/24
Improved Head Gasket Used; Summary Of Earlier Gaskets And Service Tips{1124,1216,1221}
1989/08/21
Engine Coolant Can Be Recycled{1395}
1989/11/13
Additional Information For Checking Valve Camshaft Timing{1105,1110,1112,1121}
1989/12/11
Engine News
Engine Front Support Now Machined To Prevent Possible Failure Of The Support Brackets For The Power Takeoff
1979/07/04
Specifications
Front Engine Support
3406 INDUSTRIAL & MARINE ENGINES
Service Magazine
6V3100 Diesel Timing Indicator Group Available To Check Engine/Fuel System Timing And Mechanical Advance During Operation{0653,1206,1156}
1981/08/31
New Bolt Used In Front Engine Support{1154}
1983/03/21
Engine Front Support Now Machined To Prevent Possible Failure Of The Support Brackets For the Power Takeoff{1153,3055}
1979/06/25
Engine News
Check For Correct Spring Retainer On Oil Pump Bypass Valve When Oil Pan Is Removed
1980/11/12
New Drain Plug And O-ring Seal Used In Oil Pan Groups
1991/05/01
New Oil Drain Assembly Used; Be Sure To Correctly Tighten Drain Plugs, Port Plugs, And Pipe Plugs In Oil Pans
1991/06/01
Specifications
Oil Pan
3406 INDUSTRIAL & MARINE ENGINES
Service Magazine
Changes To Oil Level Gauge Group Improve Accuracy Of Oil Level Indications, Increase Oil Capacity Of 245 Excavators And Front Shovels{1300}
1980/05/12
Check For Correct Spring Retainer On Oil Pump Bypass Valve When Oil Pan Is Removed{1315,1302}
1980/11/17
Remove Piston Cooling Tubes Before Removal Of Pistons And Connecting Rods{1214,1218,1201,1225,1307}
1981/07/13
Repair Of Drain Plug Threads In Oil Pan{1302}
1984/04/23
New Indicator Instrument Group Available To Measure Crankcase Blowby And Radiator Air Velocity{0781,1200,1350}
1986/10/27
Engine News
3400 Engine Major Component Performance Guide Available
1987/07/01
&quot;Off-Size&quot; Bearing Kits Available
1991/10/01
Service Magazine
Inspection Marks On Bearings{7551,1230,1226,1203,1219,1227}
1982/05/03
Engine News
Inspection Of Connecting Rods In Parts Stocks
1979/04/25
In The Future, Oversize And Undersize Connecting Rod And Main Bearings Will Have Size Identification Marks In Metric Units
1980/07/09
Reference List Of Pistons Used With The Different Types Of Connecting Rods
1980/09/10
New Connecting Rod And Main Bearings Have A Thicker Coating (Layer) Of Lead-Tin Overlay
1981/01/21
Later Pistons Have A Smaller Number Of Drain Holes In Oil Ring Groove
1981/03/04
6V3197 Spacer, 6V3041 Tool Group Available For Use During Removal And Installation Of Piston Pin Bearings
1981/04/22
Remove Piston Cooling Tubes Before Removal Of Pistons And Connecting Rods
1981/07/15
New Piston Pin Retainer Used
1982/02/10
Carbon Build-Up In Combustion And Inlet Areas
1982/04/07
Use Correct Part Numbers For Main And Connecting Rod Bearings
1982/05/12
Use 6V6147 Polishing Wheel To Clean Piston Pins
1982/11/10
New Piston Group Has A Thicker Top Ring
1982/12/15
Pistons With Thicker Top Rings Must Be Used In Correct Applications
1983/04/27
Parts Service Information For Pistons, Connecting Rods, Piston Pins And Rings
1983/09/14
New Connecting Rod And Main Bearings Used
1983/11/30
Remanufactured Connecting Rod Assemblies
1984/02/22
Be Sure Correct Piston Rings Are Used On 3400 Series Engines
1985/05/01
Effects Of Liner Wear In Engines Using Plasma Coated Top Rings
1985/12/01
Increase Piston Reuse With Keystone Piston Ring Gauge Group
1986/07/01
Check Connecting Rods After Engine Failures Involving Hydraulic Lock
1986/12/01
Main And Connecting Rod Bearing Part Numbers
1987/01/01
Use Only Paint To Mark Connecting Rod Caps For Torque-Turn Method
1987/06/01
Recommendations For Reusability Of Pistons With Crater Rim Cracks
1987/07/01
3400 Engine Major Component Performance Guide Available
1987/07/01
Testing Connecting Rod Eye Bushings When Overhauling Engines
1987/07/01
Installation Of Zinc Rods In Caterpillar Marine Engines
1991/01/01
New Piston Pin Retainer Used
1991/10/01
Connecting Rod Bearing Eliminates The Need For Mid-Life Connecting Rod Bearing Roll-In
1992/08/01
Verification of Connecting Rod Eye Bushing Retention When Overhauling Engines{1218}
1994/11/01
Be Sure Correct Piston Cooling Jets Are Installed{1331}
1994/12/01
Improved Main And Connecting Rod Bearings Have Aluminum Alloy With More Strength
1977/01/28
New Piston Pin Bearing Used In Connecting Rod Assembly
1977/04/22
Stronger Piston Is Used; Piston And Connecting Rod Are Tapered In Area Of Piston Pin
1977/09/28
Replacement Bearings Have Aluminum Alloy With More Strength
1977/10/26
Stronger Piston And Connecting Rod Are Tapered In Area Of Piston Pin
1978/03/01
New 5P8709 Piston Tool Group For The Alignment Of Piston Cooling Jets
1978/05/03
Service Letter-NACD
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Service Letter-Australia
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Service Letter-CFEL
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Service Letter-CSARL
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Service Letter-Americas
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Service Letter-Brazil
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Service Letter-Truck/Ag/Marine
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Specifications
Pistons And Rings
3406 INDUSTRIAL & MARINE ENGINES
Connecting Rod
3406 INDUSTRIAL & MARINE ENGINES
Bearings For Connecting Rods And Mains
3406 INDUSTRIAL & MARINE ENGINES
Service Letter-China
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Service Letter-Asia
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Information Release Memo
PRODUCT LINE ADDITIONS: REMANUFACTURED SHORT AND LONG BLOCKS FOR VARIOUS APPLICATIONS
PRODUCT LINE ADDITIONS: REMANUFACTURED SHORT AND LONG BLOCKS FOR VARIOUS APPLICATIONS
Service Letter-APD
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
New Piston Pin Retainers Need To Be Installed In Certain Cylinder Kits In Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Certain OR2693 Cylinder Kits Need To Be Removed From Parts Stock
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Remove All 3E6777 Seals And 5P8057 Kits From Dealer Inventory
Service Magazine
Reference List Of Pistons Used With The Different Types Of Connecting Rods{1214,1218}
1980/09/15
New Connecting Rod And Main Bearings Have A Thicker Coating (Layer) Of Lead-Tin Overlay{1230,1219,1203}
1981/01/19
Later Pistons Have A Smaller Number Of Drain Holes In Oil Ring Groove{1214,1213}
1981/02/23
6V3197 Spacer, 6V3041 Tool Group Available For Use During Removal and Installation Of Piston Pin Bearings{0622,1219,1218,1214}
1981/03/30
Remove Piston Cooling Tubes Before Removal Of Pistons And Connecting Rods{1214,1218,1201,1225,1307}
1981/07/13
New Cylinder Liners And O-Ring Seals Give Longer Seal Life{1216,1201,1213,1227}
1981/12/14
Piston And Connecting Rod Assembly Storage Cabinet{0600}
1982/01/18
New Piston Pin Retainer Used{1214,1225}
1982/02/08
Carbon Build-Up In Combustion And Inlet Areas{1058,1101,1105,1214,1104}
1982/03/22
Use Correct Part Numbers For Main And Connecting Rod Bearings{1230,1203,1219}
1982/04/12
Use New Special Instruction To Install 5P6595 Insert In Cylinder Liner Seats{1216,0621}
1982/05/03
Inspection Marks On Bearings{7551,1230,1226,1203,1219,1227}
1982/05/03
New Bearing Standard: Quantity Of One Part Number Now Has Both Halves Of The Bearing{7551}
1982/08/09
Use 6V6147 Polishing Wheel To Clean Piston Pins{0675,1214}
1982/11/08
Use the 6V6167 Contact Point to Measure Wear Steps on Piston Pins{0653}
1982/11/22
New Piston Group Has A Thicker Top Ring{1215,1214,1213,1225,1226,1227}
1982/12/13
Pistons With Thicker Top Rings Must Be Used In Correct Applications {1214,1215}
1983/04/18
Reuse Of Engine Bearings{1230}
1983/05/16
Parts Service Information For Pistons, Connecting Rods, Piston Pins And Rings{1214,1225,1215,1218}
1983/09/12
New Connecting Rod And Main Bearings Used{1203,1219,1226,1227,1230}
1983/10/10
Reuse Of Engine Bearings{1230,1219,1203}
1983/11/21
Remanufactured Connecting Rod Assemblies{1218}
1984/01/23
Installing New Copper Bonded Bearings Can Extend Engine Life{1230,1203,1219}
1985/04/29
Be Sure Correct Piston Rings Are Used On 3400 Series Engines{1215,1214}
1985/05/06
Two, New Top Dead Center Magnetic Transducers Available{0651,0653,1214,1250}
1985/10/07
Effects Of Liner Wear In Engines Using Plasma Coated Top Rings{1215,1216,7770}
1985/11/11
Two Different Piston Oil Ring Designs Used{1215}
1985/11/11
Service Reminders For 3400 Family Of Diesel Engines{1204,1214,1331}
1986/05/05
Determining The Cause Of Glow Plug Tip Failures{1053,1105,1412}
1986/06/02
Increase Piston Reuse With Keystone Piston Ring Gauge Group{1214,1215}
1986/06/16
Bearing Failures On Engines Due To Lack Of Lubrication{1230,1219,1203,1202}
1986/09/08
Check Connecting Rods After Engine Failures Involving Hydraulic Lock{1218,1225}
1986/10/20
Improved Main And Connecting Rod Bearings Have Aluminum Alloy With More Strength{1230}
1977/01/17
New Piston Pin Bearing Used In Connecting Rod Assembly{1218}
1977/04/25
Stronger Piston Is Used; Piston And Connecting Rod Are Tapered In Area Of Piston Pin{1213,1214,1218}
1977/09/19
Replacement Bearings Have Aluminum Alloy With More Strength{1203,1213,1230}
1977/10/24
Main And Connecting Rod Bearing Part Numbers {1203,1219,1230}
1987/01/26
Use Only Paint To Mark Connecting Rod Caps For Torque-Turn Method {1218,1219}
1987/06/01
Recommendations For Reusability Of Pistons With Crater Rim Cracks{1214}
1987/06/29
Testing Connecting Rod Eye Bushings When Overhauling Engines{1218}
1987/07/06
Stronger Piston And Connecting Rod Are Tapered In Area Of Piston Pin{1213,1214,1218}
1978/03/06
Locating Bushings For The 5P3550 Rod Boring Machine Will Now Hold Tapered Piston Pin Bushings {0626}
1978/04/17
Use 6V100 Tool Arrangement To Remove And Install Piston Pin Bearings For Both Tapered And Standard Connecting Rods{0620,1218}
1978/04/24
Sleeve-Type Ring Compressors Can Be Used For Installation Of Pistons From The Bottom Of The Engine{0622}
1978/08/21
5P3519 Piston Ring Gauge Has Improved Design For Better Accuracy And Easier Use; Corrected Information For Use On Pistons That Have Two Ring Grooves{0653,1214}
1979/05/14
Why Engines Are Damaged By Fuel Sulfur{1104,1216,1280,1318,1215}
1979/08/27
Fuel Sulfur-Your Diesel's Silent Enemy{0375,1280}
1979/12/17
New Indicator Instrument Group Available To Measure Crankcase Blowby And Radiator Air Velocity{0781,1200,1350}
1986/10/27
Check The Radiator Fan Spider Assembly When Doing Yearly General Maintenance{1356}
1989/07/24
Engine Coolant Can Be Recycled{1395}
1989/11/13
Engine News
Engine Front Support Now Machined To Prevent Possible Failure Of The Support Brackets For The Power Takeoff
1979/07/04
Service Magazine
Engine Front Support Now Machined To Prevent Possible Failure Of The Support Brackets For the Power Takeoff{1153,3055}
1979/06/25
Engine News
8T5314 Socket Adapter Available To Correctly Install Alternator Pulley Nut
1988/01/01
Damper Requirements For Remanufactured Short Block
1993/08/01
Points To Remember When Replacing A Viscous Crankshaft Damper Assembly With A Rubber Crankshaft Damper Assembly{1205}
1997/01/22
Some Wobble Is Acceptable In Rubber Vibration Dampers For Crankshafts
1977/11/09
Improved Front Pulley And Damper Groups Use New Damper Adapter With Larger Diameter Bolt Circle For Pulley Bolts
1978/01/18
Service Magazine
New Regulator And Field Coil Assemblies Used{1410,1405}
1981/11/23
New Color Used For Fan Belt Tightener Spring{1358}
1984/06/04
Voltage Regulator Cross Reference Chart{1410,1405}
1985/07/01
Some Wobble Is Acceptable In Rubber Vibration Dampers For Crankshafts{1205}
1977/10/31
Identification Of External Terminals On Alternators{1405,1406,1400}
1987/03/23
Alternator &quot;R&quot; Terminal Wire Assembly Available For Wiring Harness Repair{1408}
1987/05/04
Alternator/Generator Output Test On The Engine{1401,1404,1405,1406}
1987/05/04
Check Alternator Output Connection Prior To Machine Delivery{1405}
1987/05/18
Remanufactured Heavy-Duty Starters And High-Amp Alternators{1405,1453}
1987/05/25
Correct Torque Value For Alternator Drive Pulley Retaining Nut Is Important{1405}
1987/11/23
Improved Front Pulley And Damper Groups Use New Damper Adapter With Larger Diameter Bolt Circle For Pulley Bolts{1205}
1978/01/16
8T5314 Socket Adapter Available To Correctly Install Alternator Pulley Nut {0601}
1988/01/25
New 35-Ampere Alternator Used On Some Engines In Caterpillar Equipment{1405,1406}
1979/08/13
Voltage Regulator Can Cause Variable Ammeter Indications{1410,1401,1405,1406,7467}
1979/10/22
Engine News
New 6V87 Gauge Measures Valve Stem Wear
1979/01/10
6V2086 And 6V2087 Seal And Wear Sleeve Installers Available
1980/09/10
6V3197 Spacer, 6V3041 Tool Group Available For Use During Removal And Installation Of Piston Pin Bearings
1981/04/22
Separate Valve Stem Gauges Available
1982/08/25
New Instruction Card Available For 6V87 Valve Stem Gauge
1982/09/22
6V6142 And 6V6143 Installers Can Be Used To Install Crankshaft Seals And Wear Sleeves
1982/11/10
Use FT1711 Light Table For Cylinder Liner Inspection
1982/12/15
New Service Centers For 6V3100 Engine Timing Indicator Group
1983/10/26
New Engine Timing Indicator Group Available
1986/07/01
New Indicator Instrument Group Available To Measure Crankcase Blowby And Radiator Air Velocity
1986/11/01
Improved High Idle Display Of The 6V3100 And 8T5300/8T5301 Engine Timing Indicator Groups
1987/03/01
Additional Guidelines For Using The 8T2700 Blowby/Air Flow Indicator Group
1987/07/01
Tool Operating Manual
Using The Inspection Borescopes 1U5268 and 8T9290 Borescopes
Using The Inspection Borescopes 1U5268 and 8T9290 Borescopes
Service Magazine
6V2086 And 6V2087 Seal And Wear Sleeve Installers Available{0622,1160,1161}
1980/09/01
6V3197 Spacer, 6V3041 Tool Group Available For Use During Removal and Installation Of Piston Pin Bearings{0622,1219,1218,1214}
1981/03/30
Piston And Connecting Rod Assembly Storage Cabinet{0600}
1982/01/18
Use New Special Instruction To Install 5P6595 Insert In Cylinder Liner Seats{1216,0621}
1982/05/03
Use 6V6147 Polishing Wheel To Clean Piston Pins{0675,1214}
1982/11/08
Make Change To 6V2100 Multitach And 5P9698 Calibrator{0651}
1982/11/15
6V4869 Adapter And 6V6174 Plug Can Be Used To Install Camshaft Bearings{1211,0621}
1982/11/22
Procedure To Clean Oil Passages In Crankshafts And Cylinder Blocks{0622,0675,1201,1202}
1983/05/16
Use Caterpillar 6V50 Engine Timing Indicator For Accurate Readings{0782,0785,0775}
1985/05/27
Check 5P7435 Tee Adapter Groups In The 6V3100 Engine Timing Indicator Groups{0782}
1985/06/03
New Engine Timing Indicator Group Available {0781,0782}
1986/07/07
New Indicator Instrument Group Available To Measure Crankcase Blowby And Radiator Air Velocity{0781,1200,1350}
1986/10/27
New Special Instruction For Troubleshooting 5P2150 Engine Horsepower Meter{0651,1250}
1977/01/17
Troubleshooting The Tachometer System Of The 4S6553 Engine Instrument Group{0651}
1977/10/10
Improved High Idle Display Of The 6V3100 And 8T5300/8T5301 Engine Timing Indicator Groups{0781}
1987/03/16
Additional Guidelines For Using The 8T2700 Blowby/Air Flow Indicator Group {0781,1200,1350}
1987/07/20
Four New Contact Points Added To 5P6524 Engine Timing Indicator Group{0653}
1978/08/07
Extraction Tools For &quot;Live Oil Sampling&quot;{7770,0770,0781,0783,0784}
1988/04/18
Installation Of Valves For Live Oil Sampling{7770,0770,0781,0783,0784}
1988/06/06
New 6V87 Gauge Measures Valve Stem Wear{0653,1105}
1979/01/08
Current Chart For Dynamometer Adapters{0651,1000}
1979/01/22
6V117 And 6V2001 Bushings Used In 9S8140 Pressurizing Pump Group Are Available For Parts Service{0651}
1979/06/25
Specifications
V-Belt Tension Chart
3406 INDUSTRIAL & MARINE ENGINES
V-Belt Tension Chart
3406 INDUSTRIAL & MARINE ENGINES
Engine News
Service Manual Information About Inside Diameters Of Valve Guides
1981/10/21
Service Magazine
Service Manual Information About Inside Diameters Of Valve Guides{1104,0374}
1981/10/05
Engine News
Special Cup Plugs For Use In Oversize (Larger Than Standard Size) Bores In Valve Rocker Arm Shafts
1980/09/10
New Springs For Timing Advance Used In Governor And Fuel Pump Drive Group
1981/12/16
New Fuel Nozzle Adapter Assembly Used
1982/02/24
Reconditioning Of Bridge Wear Seat Is Permitted; Will Prevent Bridge Replacement When Not Necessary
1982/04/07
Improved Inlet And Exhaust Valves
1982/09/22
Fuel In The Cooling System Or Coolant In The Engine Oil Can Result From Cracked Fuel Nozzle Adapter
1982/10/20
Dimensions For Reconditioning Cylinder Blocks, Cylinder Heads
1983/01/19
Use Caution During Replacement Of Damaged Nozzle Adapters Or Precombustion Chambers
1983/01/19
Engine Valve Stem &quot;Use Again&quot; Specifications
1983/03/16
Damaged Lifter Bores In 3400 Series Engines Can Be Used Again
1983/07/06
New Valve Lifter Assemblies Used In Valve Mechanism Groups
1983/11/30
New Cylinder Head Assembly Made With A Different Material
1984/02/22
Dimensions For Reconditioning Cylinder Blocks, Cylinder Heads
1984/05/16
Surface Grinding Of Compacted Graphite Iron Cylinder Heads
1984/07/11
New Inlet Valves Used In Cylinder Heads
1984/09/12
New High Alloy Material Is Used In Cylinder Head Assemblies
1984/10/24
A New Book &quot;Analyzing Diesel And Natural Gas Engine Valve Failures&quot; Is Available
1985/03/01
Adjust Bridge Whenever Valve Clearance Adjustments Are Made
1986/04/01
Valve Lash Adjustment Interval Is Changed
1986/07/01
Indications Of Engine Overspeeding When Only One Cam Lobe/Lifter Has Failed
1986/10/01
Change To Interval For Valve Lash Adjustment
1987/02/01
Salvage Of Cylinder Heads By Using Oversized Valve Guides And Valve Inserts
1987/04/01
Silicone Rubber Water Seals Available
1987/07/01
High Alloy Cylinder Head Improved
1987/07/01
Improved Valve Mechanism Cover Groups
1988/01/01
Improved Head Gasket Used; Summary Of Earlier Gaskets And Service Tips
1989/08/01
Reconditioning Of Bridge Wear Seat Is Permitted; Will Prevent Bridge Replacement When Not Necessary
1990/05/01
New Exhaust Valves Are Used In Caterpillar Remanufactured Cylinder Heads
1990/10/01
Cylinder Head Gaskets Improved To Provide Better Fire Ring Retention{1124}
1994/02/01
Identification Of Intake And Exhaust Valves That May Be Used In Remanufactured Direct Injected 3400 Cylinder Heads{1105}
1994/04/18
New Rocker Arm Adjustment Screw Used To Adjust Valve Clearance {1123,1100}
1994/06/01
New Valve Lifter Assembly Provides Improved Lubrication Of Lifter Roller And Camshaft Lobes {1209,1210}
1994/06/01
New And Reconditioned Valve Projection Specifications{1105}
1995/09/01
Correct Installation Of Valve Lifters On The Camshaft Is Very Important To Prevent Failures
1977/05/25
5P7333 Tool Group Available For The Repair Of Loose Bridge Dowels On Cylinder Heads
1977/06/29
Tolerance Added To Valve Clearance Specifications
1978/01/18
Use Again Specifications For Valve Springs Are Changed
1978/03/01
Remove Fuel Injection Nozzles Before The Bottom Surface Of A Cylinder Head Is Cleaned
1978/08/16
Specifications
Valve Rocker Arms, Lifters, Bridges And Cover
3406 INDUSTRIAL & MARINE ENGINES
Breather Cap
3406 INDUSTRIAL & MARINE ENGINES
Information Release Memo
APPEARANCE CHANGE ON REMAN SHORT BLOCKS
APPEARANCE CHANGE ON REMAN SHORT BLOCKS
Service Magazine
Remanufactured Short Blocks Are Available For Repairs Of Early 3406 Engines{1201,1101,1102}
1980/03/31
Special Cup Plugs For Use In Oversize (Larger Than Standard Size) Bores In Valve Rocker Arm Shafts{1102}
1980/09/15
Reconditioning of Bridge Wear Seat Is Permitted; Will Prevent Bridge Replacement When Not Necessary{1100}
1982/03/08
Reusability Of Camshaft Rollers And Roller Followers{1209,1210}
1982/09/06
Fuel In The Cooling System Or Coolant In The Engine Oil Can Result From Cracked Fuel Nozzle Adapter{1106}
1982/10/18
Engine Valve Stem &quot;Use Again&quot; Specifications{0653,1105}
1983/02/28
Damaged Lifter Bores In 3400 Series Engines Can Be Used Again{1201,0374}
1983/07/04
Valve Damage Can Be Caused By Short Intervals Of Engine Operation In Very Cold Temperatures{1105,1208}
1983/10/17
New Valve Lifter Assemblies Used In Valve Mechanism Groups{1209}
1983/10/31
Remanufactured Cylinder Head Groups{1100,1101,7554}
1984/11/19
Valve Lash Adjustment Not A Warranty Item {1102,1105}
1985/01/14
Maximum Wear Limits Established For Camshaft Roller Followers{1209}
1985/09/30
Adjust Bridge Whenever Valve Clearance Adjustments Are Made{1121,1105,1100}
1986/04/07
Valve Lash Adjustment Interval Is Changed {1105}
1986/07/07
Indications Of Engine Overspeeding When Only One Cam Lobe/Lifter Has Failed{1000,1100,1200}
1986/09/08
Avoid Oil Contact With New Water Passage Seals Used In Cylinder Head Groups{1100}
1986/12/15
Correct Installation Of Valve Lifters On The Camshaft Is Very Important To Prevent Failures{1209}
1977/05/16
Tools Now Available To Ream And/Or Hone 0.500&quot; (12.70 mm) Diameter Valve Guides{0663}
1977/08/22
Remanufactured Cylinder Heads For 3406 Engines{1100}
1987/03/16
Silicone Rubber Water Seals Available{1100}
1987/07/06
High Alloy Cylinder Head Improved{1101}
1987/07/06
Improved Valve Mechanism Cover Groups{1107}
1987/12/14
Tolerance Added To Valve Clearance Specifications{1105,0374}
1978/01/16
Valve Damage Can Be Caused By Short Intervals Of Engine Operation In Very Cold Temperatures{1105,1208}
1978/01/30
Use Again Specifications For Valve Springs Are Changed{1108}
1978/03/06
Remove Fuel Injection Nozzles Before The Bottom Surface Of A Cylinder Head Is Cleaned{1254,1101}
1978/08/07
A New Method To Clean And Polish Engine Valve Stems{0674,1105}
1979/05/28
Why Engines Are Damaged By Fuel Sulfur{1104,1216,1280,1318,1215}
1979/08/27
Fuel Sulfur-Your Diesel's Silent Enemy{0375,1280}
1979/12/17
Additional Information For Checking Valve Camshaft Timing{1105,1110,1112,1121}
1989/12/11
Engine News
Procedure For Installing Steel Core Gasket At The Front Housing And The Flywheel Housing{1151,1157,1162}
1996/11/01
Service Letter-NACD
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Remove All 7N9331, 7N9335, And 8N1911 Gaskets From Parts Stock
Service Letter-Australia
Service Letter-CFEL
Service Letter-CSARL
Service Letter-Americas
Service Letter-Brazil
Service Letter-Truck/Ag/Marine
Service Letter-China
Service Letter-Asia
Service Letter-APD
Service Magazine
Service Information For Easier Use Of The 6V3100 Timing Indicator Group{0651,1250,1156,1157}
1982/10/11
New One-Piece Flywheel Housing Gasket{1157,1201}
1978/07/03
Correct Torque Value For Alternator Drive Pulley Retaining Nut Is Important{1405}
1987/11/23

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Caterpillar 3406, Stationäre Stromaggregate, Bau-Und Bergbauausrüstung
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Caterpillar 3406, Stationäre Stromaggregate, Bau-Und Bergbauausrüstung


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