C7 Marine Engines Caterpillar

Installation Procedure

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Illustration 1	g01081511

1. Install the upper half of connecting rod bearing (2) . Ensure that the bearing tab engages with the slot in connecting rod (1) .

2. Install the lower half of connecting rod bearing (2) . Ensure that the bearing tab engages with the slot in connecting rod cap (4) .

3. Place clean engine oil on the following items: the pistons, the piston rings, the cylinder bore, the upper half of the connecting rod bearing and the lower half of the connecting rod bearing.

Note: Each piston ring end gap must be positioned 120 degrees from each other.

4. Use Tooling (A) in order to compress the piston rings.

5. With the number one crankshaft throw at the bottom center, install the piston and connecting rod in the engine. Ensure that the proper piston and connecting rod are in the corresponding cylinder with the bearing retainer notch toward the right side of the engine.

   Note: The etched number on the connecting rod must be on the right side of the engine in the corresponding cylinder.

6. Line up the piston and the connecting rod with the crankshaft. Use a soft hammer and tap the piston into the cylinder bore until Tooling (A) comes off of the piston.

7. Use a soft hammer in order to tap the piston into the cylinder bore while you guide connecting rod (1) onto the crankshaft.

8. Install connecting rod cap (4) on connecting rod (1) . Ensure that the number on connecting rod cap (4) matches the number on connecting rod (1) . Ensure that the numbers are on the same side.

9. Lubricate bolts (3) with Tooling (B) .

10. Install bolts (3) . Tighten bolts (3) to a torque of 70 ± 5 N·m (52 ± 4 lb ft).

11. Tighten each bolt (3) for an additional 120 ± 5 degrees (1/3 turn).

End By:

1. Install the piston cooling jets. Refer to Disassembly and Assembly, "Piston Cooling Jets - Remove and Install".
2. Install the cylinder head. Refer to Disassembly and Assembly, "Cylinder Head - Install".