3056 Engine for Caterpillar Built Machines Caterpillar

Removal Procedure

Start By:

1. Remove the fuel injection pump. Refer to Disassembly and Assembly, "Fuel Injection Pump - Remove".
2. Remove the engine oil pump. Refer to Disassembly and Assembly, "Engine Oil Pump - Remove".
3. Remove the front housing. Refer to Disassembly and Assembly, "Housing (Front) - Remove".
4. Remove the flywheel housing. Refer to Disassembly and Assembly, "Flywheel Housing - Remove and Install".
5. Remove the housing for the crankshaft rear seal. Refer to Disassembly and Assembly, "Crankshaft Rear Seal - Remove".

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Illustration 1	g00541252

1. Remove two socket head bolts (1) from the bridge.

2. Remove bridge (2) from the cylinder block.

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Illustration 2	g00572309

Note: Inspect the main bearing caps and the connecting rod caps for the proper identification mark. The identification marks should give the location and the direction of the bearings in the engine.

3. Remove 14 main bearing cap bolts (3) from the cylinder block.

4. Remove seven main bearing caps (4) from the cylinder block.

5. Remove the lower main bearings and the lower thrust washers. Keep the lower min bearings with the respective main bearing cap.

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Illustration 3	g00541254

Note: The connecting rod caps are held on the connecting rod with two bolts that are threaded into the connecting rod.

6. Remove 12 bolts (5) from the connecting rods.

7. Remove six connecting rod caps (6) from the connecting rods.

8. Remove the bearings from connecting rod caps (6). Keep the connecting rod bearings with the respective connecting rod cap.

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NOTICE
Do not allow the connecting rods to strike the piston cooling jets. Damage or misalignment may occur.

9. Push the piston assemblies into the cylinder bores.

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Illustration 4	g00572311

10. Attach lifting straps and a suitable lifting device to crankshaft (7) .

11. Lift crankshaft (7) out of the cylinder block. The weight of the crankshaft is 39 kg (85 lb). Do not scratch any of the finished surfaces on the crankshaft.

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Illustration 5	g00541257

12. Remove upper main bearings (8) and upper thrust washers (9) .