3054 and 3056 Marine Generator Set Engines Caterpillar

Removal Procedure

Start By:

1. Remove the V-belts. Refer to Disassembly and Assembly, "V-Belts - Remove and Install".
2. Remove the crankshaft pulley. Refer to Disassembly and Assembly, "Vibration Damper and Pulley - Remove and Install".
3. Remove the front cover. Refer to Disassembly and Assembly, "Front Cover - Remove".

Note: Rotate the crankshaft until the timing marks on the crankshaft gear, the camshaft gear, and the idler gear are aligned.

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Illustration 1	g00556563
Typical example

1. Remove three bolts (1) in idler gear (2) .

2. Remove idler gear (2) and spacer (3) .

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Illustration 2	g00556666
Typical example

3. Use a suitable puller to remove crankshaft gear (4) from crankshaft (5) .

   Note: Do not use a flame on the crankshaft gear for removal purposes.

   Note: Do not scratch the bearing journal.

Installation Procedure

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Illustration 3	g00556666
Typical example

1. Heat crankshaft gear (4) in an oven to 180 °C (356 °F).

2. Install crankshaft gear (4) on crankshaft (5) with the timing marks toward the front.

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Illustration 4	g00556563
Typical example

3. Install spacer (3) and idler gear (2) .

4. Install three bolts (1) on idler gear (2). Tighten the bolts to a torque of 44 N·m (32 lb ft).

   Note: Ensure that the timing marks on the crankshaft gear, the camshaft gear, and the idler gear are aligned.

5. Refer to Disassembly and Assembly, "Gear Group (Front) - Install" for the correct alignment of the idler gear.

End By:

1. Install the front cover. Refer to Disassembly and Assembly, "Front Cover - Install".
2. Install the crankshaft pulley. Refer to Disassembly and Assembly, "Vibration Damper and Pulley - Remove and Install".
3. Install the V-belts. Refer to Disassembly and Assembly, "V-Belts - Remove and Install".