C6.6 Engines for Caterpillar Built Machines Flywheel Housing - Remove and Install - Standard Housing Caterpillar

Removal Procedure

Start By:

1. Remove the flywheel. Refer to Disassembly and Assembly, "Flywheel - Remove".

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Illustration 1	g01374648
Typical example

1. Remove bolts (3) from position (X) from flywheel housing (1).

2. Install Tooling (A) into position (X) on flywheel housing (1).

3. Install a suitable lifting device to the flywheel housing in order to support the flywheel housing. The flywheel housing can weigh 32 kg (70.5 lb).
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   Illustration 2	g01337563
   Typical example

4. Remove bolts (2) and remaining bolts (3) from flywheel housing (1).

5. Use the lifting device in order to remove flywheel housing (1) from the cylinder block.
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   Illustration 3	g01337565
   Typical example

6. If the engine has an aluminum oil pan, remove dust seal (5).

7. If necessary, remove dowels (4) from the cylinder block.

Installation Procedure (Standard Housing)

1. Ensure that the flywheel housing is clean and free from damage. If necessary, replace the flywheel housing.
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   Illustration 4	g01337569
   Engine with an aluminum oil pan

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   Illustration 5	g01337572
   Engine with a cast iron oil pan

2. Inspect crankshaft rear seal (8) for leaks. If there are any oil leaks, replace the crankshaft rear seal. Refer to Disassembly and Assembly, "Crankshaft Rear Seal - Remove" and refer to Disassembly and Assembly, "Crankshaft Rear Seal - Install".

3. Clean the rear face of the cylinder block. If necessary, install dowels (4) to the cylinder block.

4. Install Tooling (A) to the cylinder block.

5. If the engine has an aluminum oil pan, install dust seal (5).

   If the engine has a cast iron oil pan, apply a bead of Tooling (B) to position (X).

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   Illustration 6	g01337563
   Typical example

6. Install a suitable lifting device to the flywheel housing. The flywheel housing can weigh 32 kg (70.5 lb).

7. Use the lifting device to align flywheel housing (1) with Tooling (A). Install the flywheel housing to the cylinder block.

8. Install bolts (2) and bolts (3).

9. Remove Tooling (A). Install remaining bolts (3).

10. Tighten bolts (3) to a torque of 63 N·m (46 lb ft).

11. Tighten bolts (2) to a torque of 78 N·m (57.5 lb ft).

12. Check the alignment of flywheel housing (1) with the crankshaft. Refer to System Operation, Testing and Adjusting, "Flywheel Housing - Inspect".

End By:

1. Install the flywheel. Refer to Disassembly and Assembly, "Flywheel - Install".