Exhaust Manifold - Remove and Install - Top Mounted Exhaust Manifold
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C6.6 Engines for Caterpillar Built Machines
[KENR6081]
C6.6 Engines for Caterpillar Built Machines
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1.1. Removal Procedure
2.1. Installation Procedure (Top Mounted Exhaust Manifold)
- Disconnect all hoses, tube assemblies and wire leads from the turbocharger. Refer to Disassembly and Assembly, "Turbocharger - Remove" Steps 1 through 7.
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Illustration 1 g01335809 Show/hide tableIllustration 2 g01335810 - Loosen bolts (4) and (6) in reverse numerical order. Refer to Illustration 2.
Note: This will help prevent distortion of the exhaust manifold.
- Remove center bolts (4) from exhaust manifold (3). Remove outer bolts (6) and spacers (5) from exhaust manifold (3).
Note: Support the manifold as the bolts are removed.
- Remove the assembly of exhaust manifold (3) and turbocharger.
- Remove exhaust manifold gaskets (1).
- Remove the turbocharger from exhaust manifold (3). Refer to Disassembly and Assembly, "Turbocharger - Remove" Steps 8 through 15.
- If necessary, remove studs (2) from exhaust manifold (3).
Installation Procedure (Top Mounted Exhaust Manifold)
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Required Tools | |||
Tool | Part Number | Part Description | Qty |
A | - | Guide Stud (M10 by 100 mm) |
4 |
B | - | Loctite 575 | 1 |
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Illustration 3 | g01335810 |
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Illustration 4 | g01335809 |
- Ensure that the exhaust manifold is clean and free from damage. If necessary, replace the exhaust manifold. Clean the mating surface of the cylinder head.
- If necessary, install studs (2) to exhaust manifold (3). Tighten the studs to a torque of
18 N·m (13 lb ft) . - Install the turbocharger to the exhaust manifold. Refer to Disassembly and Assembly, "Turbocharger - Install" Steps 1 through 14.
- Install Tooling (A) to the cylinder head in positions (X). Refer to Illustration 3.
- Position two new exhaust manifold gaskets (1) onto Tooling (A).
Note: Ensure that the word TOP is outward and upward.
- Align exhaust manifold (3) with Tooling (A). Install the exhaust manifold to the cylinder head.
- If bolts (4) and (6) have been previously used, the bolts should be thoroughly cleaned. Tooling (B) should be applied to the first two threads of the bolts.
Note: Do not apply Tooling (B) to new bolts.
- Install bolts (4) finger tight. Install bolts (6) and spacers (5) finger tight.
- Remove Tooling (A). Install remaining bolts (4) finger tight. Install remaining bolts (6) and spacers (5) finger tight.
- Tighten bolts (4) and (6) to a torque of
44 N·m (32 lb ft) . Tighten the bolts in the sequence that is shown in Illustration 3. - Connect all hoses, tube assemblies and wire leads from the turbocharger. Refer to Disassembly and Assembly, "Turbocharger - Install" Steps 16 through 24.
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