C7.1 (Mechanical) Engines for Caterpillar Built Machines Caterpillar

Installation Procedure

1. Ensure that the front housing is clean and free from damage. If necessary, replace the front housing. Install blanking plugs to a new front housing.

2. Clean all the gasket surfaces of the cylinder block.
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   Illustration 1	g06327303

3. If necessary, install thrust washer (10) into the recess in the cylinder block. Refer to Disassembly and Assembly, "Camshaft - Install" for more information.
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   Illustration 2	g06327295

4. Install Tooling (A) to the cylinder block. Refer to Illustration 2.

5. Align a new gasket (6) with Tooling (A). Install the joint to the cylinder block.

   Note: Ensure that two circular Tabs (X) on the gasket are engaged in two Holes (Y) in the cylinder block.

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   Illustration 3	g06327296
   Typical example

6. Install Tooling (B) to the cylinder block.

7. Install the front housing over Tooling (A) and Tooling (B) onto the cylinder block.
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   Illustration 4	g06327299
   (7) M8 by 20 mm (8) M8 by 35 mm (9) M8 by 25 mm

8. Install new bolts (9) to front housing (3) hand tight.

9. Remove Tooling (A).

10. Loosely install bolts (7) and bolts (8). Refer to Illustration 4 for the correct position of the bolts.

11. Align the bottom face of front housing (3) to the lower machined face of the cylinder block. Use Tooling (C) and a feeler gauge to check the alignment between the front housing and the cylinder block. Refer to Illustration 3. Refer to Specifications, "Front Housing and Covers" for further information.

12. Tighten bolts (9) in the sequence that is shown in illustration 5 to a torque of 28 N·m (248 lb in).

13. Repeat Step 11 to ensure that the bottom face of front housing (3) to the lower machined face of the cylinder block are still aligned.
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    Illustration 5	g06327300

14. Tighten bolts (7) and bolts (8) in the sequence that is shown in illustration 5 to a torque of 28 N·m (248 lb in).

    Note: Ensure that the housing and the cylinder block are correctly aligned.

15. Remove Tooling (B) from the cylinder block.

16. Install a new crankshaft front seal. Refer to Disassembly and Assembly, "Crankshaft Front Seal - Remove and Install".
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    Illustration 6	g06327292
    Typical example

17. Install new O-ring seal (4) and gasket (5) to bypass tube (2). Use Tooling (D) to lubricate the O-ring seals. Install bypass tube (2) to the cylinder head. Install bolts (1). Tighten bolts (1) to a torque of 22 N·m (195 lb in).

End By:

1. Install the fuel injection pump.

2. Install the gear group (front).

3. Install the engine oil pan.