ROD ASSEM. 6J8318 - Caterpillar

Removal Procedure
Start By:
Remove the cylinder head. Refer to Disassembly and Assembly, "Cylinder Head - Remove".
Remove the crankshaft seal carrier. Refer to Disassembly and Assembly, "Crankshaft Rear Seal Carrier - Remove and Install".
Remove the front gear group. Refer to Disassembly and Assembly, "Gear Group (Front) - Remove".
Remove the piston and the connecting rods. Refer to Disassembly and Assembly, "Piston and Connecting Rods-Remove".
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat products.Dispose of all fluids according to local regulations and mandates.
Note: For information on reusability of the crankshaft, refer to the following list.
Guideline For Reusable Parts And Salvage Operations, SEBF8041, "Crankshaft Measurement"
Guideline For Reusable Parts And Salvage Operations, SEBF8054, "Procedure to Measure and Straighten Bent Crankshafts"
Guideline For Reusable Parts And Salvage Operations, SEBF8094, "Procedure to Grind Crankshafts"
Guideline For Reusable Parts And Salvage Operations, SEBF8043, "Visual Inspection of Crankshafts"
Guideline For Reusable Parts And Salvage Operations, SEBF8039, "Inspection of Crankshafts for Cracks"
Guideline For Reusable Parts And Salvage Operations, SEBF8042, "Procedure to Polish Crankshafts"Note: For information on reusability of the crankshaft main bearings, refer to Guideline For Reusable Parts And Salvage Operations, SEBF8009, "Main and Connecting Rod Bearings".Note: For information on reusability of the cylinder block and salvage procedures, refer to the following list.
Guideline For Reusable Parts And Salvage Operations, SEBF8192, "Specifications and Salvage for Cylinder Blocks on 3114, 3116, and 3126 Engines"
Guideline For Reusable Parts And Salvage Operations, SEBF8261, "Installing a 7C-6208 Cylinder Sleeve in 3114, 3116 Engines and a 107-7604 Cylinder Sleeve in 3126 Engines"
Special Instruction, SEHS8869, "Cylinder Block Salvage Procedure Using Belzona Ceramic R Metal"
Special Instruction, GMG00981, "Using 1P-3537 Dial Bore Gauge Group to Check Cylinder Bore Size"
Special Instruction, SMHS7606, " Use of 1P-4000 Line Boring Tool Group"
Special Instruction, SEHS8841, " Using the Ironstitch Procedure for Casting Salvage"
Special Instruction, SEHS8919, "Salvage Weld Procedure for Cast Iron Cylinder Blocks"
Guideline For Reusable Parts And Salvage Operations, SEBF8076, "Specifications to Salvage Cylinder Block Contact Surfaces"
Illustration 1 g00625767Note: The weight of the crankshaft for the 3114 Engine is 37 kg (82 lb). The weight of the crankshaft for 3116 and 3126 Engines is 62 kg (137 lb).
Use a suitable lifting device. Remove bolts (2), the washers and main bearing caps (3). Carefully remove crankshaft (1) from the cylinder block.
Illustration 2 g00625782
Remove upper main bearing (4) from the cylinder block.
Remove the main bearings from the main bearing caps.