3046 Engine For Caterpillar Built Machines Caterpillar

Removal Procedure

Start By:

1. Remove the front housing. Refer to Disassembly and Assembly, "Housing (Front) - Remove".
2. Remove the flywheel housing. Refer to Disassembly and Assembly, "Flywheel Housing - Remove and Install".
3. Remove the engine oil pan. Refer to Disassembly and Assembly, "Engine Oil Pan - Remove and Install".

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Illustration 1	g00537543

1. Install nut (3) and the washer onto the crankshaft. Use Tool (A) to turn the crankshaft.

2. Remove twelve nuts (1) that secure connecting rod caps (2). Remove six connecting rod caps (2) .

   Note: Be careful not to damage the bearings. Mark each connecting rod cap and the bearing in order to ensure installation in the original location.

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Illustration 2	g00537544

3. Use tape or rubber tubing on connecting rod bolts (6) to protect the crankshaft.

4. Carefully push the connecting rods and the pistons into the top of bores.

5. Remove fourteen bolts (4) that secure crankshaft main bearing caps (5). Remove seven crankshaft main bearing caps (5) .

   Note: Be careful not to damage the bearings. Mark each crankshaft main bearing cap and the bearing in order to ensure installation in the original location.

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Illustration 3	g00537545

6. Fasten a suitable lifting device and straps to crankshaft (7). Remove the crankshaft. The weight of the crankshaft is 39 kg (86 lb).

   Note: Be careful not to damage the finished surfaces on the crankshaft.

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Illustration 4	g00537866

7. Remove the upper halves of crankshaft main bearings (8). If necessary, remove thrust washers (9) .