GASKET 1095313 - Caterpillar

Engine3512B (S/N: ED31-UP; S2G1-UP; PPH1-UP)3516B (S/N: FF21-UP; LY31-UP; LY41-UP; F4H1-UP; YAT1-UP; YAW1-UP)Off-Highway Truck/Tractor785C (S/N: 1HW1-UP; APX1-UP)Introduction
Do not perform any procedure in this Special Instruction until you have read the information and you understand the information.Safety Section
Hot parts or hot components can cause burns or personal injury. Do not allow these parts to contact your skin. Let the engine cool down before performing maintenance on or around the engine.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Required Tools
Table 1
Part Number Part Description
4C-5894 Tap (M10 X 1)(1)
9S-7354
or
386-3340 Torque Wrench Gp
9U-7067 Tapered Cap/Plug(2)
264-4355 Nylon Brush(2)
266-2281 Nylon Brush(2)
N/A 12 mm 6-Point Deep Socket
N/A Loctite C5-A® with North America
N/A Loctite 8008® outside North America
(1) Use the 4C-5894 Tap to chase the port threads if necessary.
(2) Along with a new cylinder pressure sensor, these parts are included in the 526-1451 .Note: The 478-3965 Sensor Harness As can be replaced if damaged during installation and removal.Removal Procedure
Illustration 1 g06147949
(1) 443-5682 Pressure Sensor Gp (In Cylinder Pressure Sensor)
Illustration 2 g06148758
(1) 443-5682 Pressure Sensor Gp (In Cylinder Pressure Sensor)
Allow engine to cool down, or wear appropriate personal protective equipment to avoid burns.
Disconnect the battery.
Illustration 3 g06155337
(A) Area around the sensor
(1) 443-5682 Pressure Sensor Gp (In Cylinder Pressure Sensor)
(2) 478-3965 Sensor Harness As
Clean area around the sensor (A) before removing sensor harness (2) to avoid liquid or debris from getting into the harness connector or the sensor. Clean area with compressed air or vacuum. Do not exceed 689 kPa (100 psi) compressed air.
Inspect area around the sensor (A) to ensure that the area is free of debris that could fall into the combustion chamber.
Remove sensor harness (2) from pressure sensor (1). Pull from the round connector. Do not pull on the wires. Do not twist the round connector. There are no locking tabs to release. If desired, use a spark plug wire pliers or hose grip pliers to assist connector removal.
Loosen pressure sensor (1) using a ratchet, a 12 mm 6-Point Deep Socket, and extensions (if necessary). Finish unthreading by hand. Do not use an impact wrench.
Insert the 9U-7067 Tapered Cap/Plug into the sensor port to prevent debris from falling into combustion chamber.Installation Procedure
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 4 g06155342
(A) Area around the sensor
(B) Port threads
(C) Port surface
(D) Sensor seat
Inspect area around the sensor port (A) to ensure that the area is free of debris that could fall into the combustion chamber.
If using previously removed cylinder heads, remove the 9U-7067 Tapered Cap/Plug from the sensor port.
Inspect port threads (B) to ensure that the threads are free of any debris. If cylinder heads were delivered with Tarp or Tarp-B applied, clean per the Engine News, SEBD9204, Uses, Characteristics, And Removal of Castrol Tarp®, Tarp-B®, And 4164® prior to installing on the engine. If the heads were delivered with a different rest preventer applied, clean appropriately prior to installing on the engine.Note: If the engine and DGB retrofit kit is going to be