C2.2 Engines for Caterpillar Built Machines Caterpillar

Installation Procedure

1. Inspect the pins of the crankshaft for damage. If the crankshaft is damaged, replace the crankshaft or recondition the crankshaft. Refer to Disassembly and Assembly, "Crankshaft - Remove" and Disassembly and Assembly, "Crankshaft - Install" for the correct procedure. Ensure that the connecting rod bearings are clean and free from wear or damage. If necessary, replace the connecting rod bearings.
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   Illustration 1	g03337903

2. Clean the bearing surface of connecting rod (1) and connecting rod cap (5). Ensure that Number (X) on connecting rod cap (5) aligns with Number (X) on connecting rod (1).

3. Install upper connecting rod bearing (3) to connecting rod (1). Lubricate the bearing surface of the connecting rod bearing with clean engine oil.

4. Carefully pull connecting rod (1) against the crankshaft pin.

   Note: Use suitable tubing on connecting rod bolts (2) in order to protect the crankshaft journals. The sharp edges of the connecting rod bolts could damage the crankshaft journals.

5. Clean the connecting rod cap. Install lower connecting rod bearing (4) to connecting rod cap (5).

6. Lubricate the pin of the crankshaft and lubricate lower connecting rod bearing (3) with clean engine oil.
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   NOTICE
   When the connecting rod caps are installed, ensure that the identification marks are aligned.

7. Install connecting rod cap (5).

8. Install nuts (4) hand tight. Tighten nuts (4) to a torque of 52 N·m (38 lb ft).

9. Ensure that the installed connecting rod assembly has tactile side play. Carefully rotate the crankshaft in order to ensure that there is no binding.

   Note: If all connecting rod bearings require replacement, the procedure can be carried out on two cylinders at the same time. The procedure can be carried out on the following pairs of cylinders. 1 with 4 and 2 with 3. Ensure that both pairs of the connecting rod bearings are installed before changing from one pair of cylinders to another pair of cylinders. Refer to Disassembly and Assembly, "Connecting Rod Bearings - Remove" for more information.

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1. Install the suction pipe. Refer to Disassembly and Assembly, "Engine Oil Pump - Install" for the correct procedure.