3116 On Highway Engines Caterpillar

Removal Procedure

Start By:

1. Remove the turbocharger. Refer to Disassembly and Assembly, "Turbocharger - Remove".

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Illustration 1	g00617696

1. Remove bolts (1), locks (3), exhaust manifold (2), and the gaskets from the cylinder head assembly.

2. Disassemble exhaust manifold (2) into three pieces.

3. Remove mounting studs (4) from exhaust manifold (2), if necessary.

Installation Procedure

1. Inspect the condition of the gasket. Replace the gasket, if necessary.

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Illustration 2	g00617696

2. Apply 5P-3931 Anti-Seize Compound to the threads of mounting studs (4) .

3. Install mounting studs (4). Tighten mounting studs (4) to a torque of 35 ± 5 N·m (26 ± 4 lb ft).

4. Install new exhaust manifold gaskets.

5. Apply a thin coat of 2P-2333 High Temperature Sealer to the male ends of exhaust manifold (2). Coat the inside of the female ends of exhaust manifold (2) with clean engine oil. Assemble exhaust manifold (2) and remove the excess sealant from the joints.

6. Apply 5P-3931 Anti-Seize Compound to the threads of bolts (1). Position the gaskets and exhaust manifold (2) on the cylinder head assembly. Install locks (3) and bolts (1) .

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Illustration 3	g00617739
Typical example of a three-piece exhaust manifold

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Illustration 4	g00624977
Typical example of a one-piece exhaust manifold

7. Tighten bolts (1) in a numerical sequence to a torque of 4 ± 1 N·m (35 ± 9 lb in).

8. Tighten bolts (1) in a numerical sequence to a torque of 45 ± 5 N·m (33 ± 4 lb ft).

9. Bend the locking tab over the flat of each bolt head.

End By: Install the turbocharger. Refer to Disassembly and Assembly, "Turbocharger - Install".