C15 and C18 Engines for Caterpillar Built Machines Exhaust Manifold - Remove and Install - For Series Turbocharger Applications Caterpillar

Removal Procedure

Start By:

1. Remove the low-pressure turbocharger.

2. Remove the high-pressure turbocharger.

3. Remove the exhaust gas cooler.

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Illustration 1	g02130391

1. Remove five bolts (1) and remove bolt (4).

2. Remove bolts (3) and remove bracket (2).
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   Illustration 2	g02353051

3. Remove nuts (6) and remove spacers (5). Discard all nuts (6). Remove exhaust manifold assembly (7).
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4. Separate exhaust manifold sections (8), (9), and (10).

Installation Procedure

Note: Check the O-ring seals, the gaskets, and the seals for wear or for damage. Replacethe components, if necessary.

1. Install the exhaust manifold in the reverse order.

   1. Apply a thin coat of Tooling (B) to the outside of the male ends that are on manifold sections (8) and (10). Assemble manifold sections (8), (9), and (10).
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      Illustration 4	g02353051

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      Illustration 5	g01381130
      Torque Sequence

   2. Apply Tooling (A) on the threads of new nuts (6). Install Tooling (C) at Location (X). Position spacers (5) and install nuts (6). Hand tighten nuts (6). Remove Tooling (C). Install remaining spacers (5) and nuts (6). Tighten nuts (6) in the above sequence to a torque of 20 ± 3 N·m (15 ± 2. lb ft). Tighten nuts (6) again in the same sequence to torque of 50 ± 5 N·m (37 ± 4 lb ft).