C18 Marine Engines Caterpillar

Removal Procedure

Start By:

1. Remove the flywheel.

Note: The crankshaft rear seal and the wear sleeve must be replaced at the same time. Once the crankshaft rear seal and the wear sleeve are separated, these components cannot be used again.

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Illustration 1	g01007851

Note: Ensure that you do not damage the flywheel housing with Tooling (B).

Note: If the wear sleeve starts to slide off the crankshaft, go to Step 2.

1. Use Tooling (B) to pry around the lip of wear sleeve (2).

2. Use a small drill in order to puncture three or more holes in crankshaft rear seal (1).

3. Use Tooling (A) to remove crankshaft rear seal (1).

4. If necessary, use Tooling (C) to remove wear sleeve (2).

Installation Procedure

Note: The crankshaft rear seal and the wear sleeve must be replaced at the same time. Once the crankshaft rear seal and the wear sleeve are separated, these components cannot be used again.

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Illustration 2	g01636744

Note: Do not use any type of lubricant during the installation of the crankshaft rear seal and wear sleeve.

1. Before installation of the crankshaft rear seal and the wear sleeve, inspect the crankshaft for scratches. Also, inspect the crankshaft for any distortion on the surface that may lead to an out of round condition. Use a polishing cloth in order to remove any imperfections on the crankshaft.

2. Clean the outside diameter of the crankshaft and the inside diameter of the wear sleeve.

   Note: Install the crankshaft rear seal with the arrow that shows the direction of crankshaft rotation toward the rear of the engine.

3. Use Tooling (D) to install wear sleeve (2) and crankshaft rear seal (1).

End By:

1. Install the flywheel.