C9.3 Marine Engine Caterpillar

Removal Procedure

Start By:

1. Remove turbocharger.

2. Remove fuel filter base.

3. Remove heat exchanger.

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Illustration 1	g03830903

1. Remove bolts (3), bolts (6), clamp (1), elbow assembly (2), elbow assembly (5), and hose assembly (4).
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   Illustration 2	g03830932

2. Remove nuts (7), studs (8), and bracket (9).
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   Illustration 3	g03830945

3. Remove bolts (10) and elbow assembly (11).
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   Illustration 4	g03830960

4. Remove nuts (14), studs (15), clip (12), exhaust manifold (13), and the gaskets.
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   Illustration 5	g03830979

5. If necessary, remove studs (16).

Installation Procedure

1. Install exhaust manifold (13) in the reverse order of removal.

   1. Tighten studs (16) to a torque of 30 ± 7 N·m (266 ± 62 lb in).

      Note: Torque speed should not exceed 100 rpm.

   2. Apply Tooling (A) to the threads of nuts (14) and studs (8).
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      Illustration 6	g03829823

   3. Tighten nuts (14) by hand. Tighten nuts (14) in numerical sequence shown in illustration 6 to a torque of 4 ± 1 N·m (35 ± 9 lb in). Retighten nuts (14) to a final torque of 55 ± 5 N·m (41 ± 40 lb ft).

   4. Apply Tooling (B) to the bore of elbow assembly (11), elbow assembly (5), and elbow assembly (2).

   5. Apply Tooling (C) to the O-ring seals of elbow assembly (5) and elbow assembly (2).