3176C and 3196 Marine Engines Caterpillar

Installation Procedure

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NOTICE
Ensure that the crankshaft main bearing tabs engage with the grooves in the block and the crankshaft main bearing cap.

1. Place the upper halves of the crankshaft main bearings in the cylinder block. Place the lower halves of the crankshaft main bearings in crankshaft main bearing caps.

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Illustration 1	g00517116

2. Fasten suitable lifting device (4) to the crankshaft and place the crankshaft in the cylinder block.

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Illustration 2	g00517179

3. Install crankshaft thrust bearings (3) .

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Illustration 3	g00517115

4. Install crankshaft main bearing caps (2) with the part numbers toward the right hand side of the cylinder block. Ensure that crankshaft main bearing caps (2) have numbers 1 through 7. The numbers should start at the front of the engine. Place clean engine oil or Molylube on the bolt threads and the washers. Install bolts (1). Tighten the bolts to a torque of 95 ± 5 N·m (70 ± 4 lb ft).

5. Place an index mark on each bolt head. Turn the bolts for an additional 90 ± 5 degrees (1/4 turn).

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Illustration 4	g00517182

6. Check the end play of the crankshaft with Tool (A). The end play must be 0.10 mm (.004 inch) to 0.50 mm (.020 inch).

End By:

1. Install the pistons and connecting rods.
2. Install the flywheel housing.
3. Install the front housing.
4. Install the engine oil pump.
5. Install the cylinder head.