C7 On-highway Engine Caterpillar

Installation Procedure

1. Thoroughly clean the mating surfaces of the cylinder head and the cylinder block.

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Illustration 1	g01030060

2. Install new cylinder head gasket (13) .

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Illustration 2	g01030056

Note: To avoid damage to the cylinder head gasket, use guide bolts of an appropriate size to install the cylinder head.

3. Attach a suitable lifting device to cylinder head (10). Position cylinder head (10) onto the dowels in the cylinder block. Lower cylinder head (10) onto the cylinder block. The weight of cylinder head (10) is approximately 130 kg (287 lb).

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Illustration 3	g01030059

4. Inspect the condition of cylinder head bolts (11) and cylinder head bolts (12). Replace cylinder head bolts (11) and cylinder head bolts (12), if necessary.

5. Lubricate cylinder head bolts (11) and cylinder head bolts (12) with Tooling (A). Install cylinder head bolts (11) and cylinder head bolts (12). Follow Step 6 for the correct tightening procedure.

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Illustration 4	g01030071

6. Tighten the cylinder head bolts according to the following procedure:

   1. Tighten bolt (1) through bolt (14) in a numerical sequence to a torque of 300 ± 15 N·m (221 ± 11 lb ft).

   2. Loosen bolt (1) through bolt (14) until the washers are loose under the bolt heads.

   3. Tighten bolt (1) through bolt (14) again in a numerical sequence to a torque of 130 ± 15 N·m (95 ± 11 lb ft).

   4. Again tighten bolt (1) through bolt (14) in a numerical sequence to a torque of 130 ± 15 N·m (95 ± 11 lb ft).

   5. Turn bolt (1) through bolt (14) in a numerical sequence for an additional 90° (1/4 turn).

   6. Tighten bolt (15) through bolt (20) in a numerical sequence to a torque of 55 ± 7 N·m (41 ± 5 lb ft).

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Illustration 5	g01031525

7. Connect tube assembly (7) and tube assembly (9) onto turbocharger (8) .

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Illustration 6	g01030044

8. Install tube assembly (5) and tube assembly (6) .

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Illustration 7	g01030042

9. Install tube assembly (4) .

10. Connect harness assembly (1), harness assembly (2), and harness assembly (3) .

End By:

1. Install the fan drive mounting group. Refer to Disassembly and Assembly, "Fan Drive Mounting Group - Remove and Install".
2. Install the rocker shaft and pushrods. Refer to Disassembly and Assembly, "Rocker Shaft And Pushrod - Install".
3. Install the valve mechanism cover base. Refer to Disassembly and Assembly, "Valve Mechanism Cover Base - Remove and Install".