3508C, 3512C and 3516C Marine Engines Pistons and Connecting Rods - Remove Caterpillar

Removal Procedure

Start By:

1. Remove the cylinder head. Refer to Disassembly and Assembly, "Cylinder Head - Remove".

2. Remove the piston cooling jets. Refer to Disassembly and Assembly, "Piston Cooling Jets - Remove and Install".

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Illustration 1	g00913801

1. Use Tooling (A) to rotate the crankshaft until bolts (1) can be removed.

2. Remove the carbon ridge from the top inside surface of the cylinder liner.

3. Inspect the connecting rod and connecting rod cap for the proper identification mark. The connecting rod and the connecting rod cap should have an etched number on the side. The number should match the cylinder number. Mark the connecting rod and the connecting rod cap, if necessary.

   Note: Do not stamp the connecting rod assembly.

4. Remove bolts (1) and connecting rod cap (2). Push the connecting rod until the piston rings are out of the cylinder liner.

5. Remove the piston and the connecting rod from the cylinder liner.

   Note: Be careful not to damage the cylinder liner or the crankshaft journal during the removal of the piston and the connecting rod.

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   Illustration 2	g01051820

6. Use Tooling (B) to remove the retaining rings that hold piston pin (4). Remove piston pin (4). Remove piston (3) from connecting rod (5).

7. Remove the bearings from connecting rod (5) and the connecting rod cap.

   Note: If necessary, separate the piston skirt from the piston crown.

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   Illustration 3	g00913818

8. Use Tooling (C) to remove piston rings (6) from piston (3).