3306B Industrial Engine Caterpillar

Installation Procedure

Note: When the cylinder head is removed, a new spacer plate gasket must be installed. Refer to Disassembly and Assembly, "Spacer Plate - Remove and Install".

1. Ensure that the surface of the cylinder head is clean and dry. Install a new, dry cylinder head gasket onto the cylinder block.

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Illustration 1	g00541495

2. Fasten the proper lifting device to cylinder head (1). Put cylinder head (1) in position on the cylinder block. Remove the lifting device after cylinder head (1) is positioned.

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Illustration 2	g00541497

3. Apply 6V-4876 Lubricant to cylinder head bolts (2) and (3). Install cylinder head bolts (2) and (3). Tighten the cylinder head bolts finger tight.

   Note: Do not tighten the cylinder head bolts at this time.

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Illustration 3	g00511493

4. Install pushrods (4). Make sure that the pushrods are installed in the original location and that the pushrods are seated correctly in the valve lifters.

5. Loosen the adjusting screws on rocker arms (5) for valve clearance. This will prevent a bent valve or a broken pushrod during installation.

6. Install a new O-ring seal in the rear rocker arm support.

7. Apply 6V-4876 Lubricant to all of the rocker shaft bolts except bolt (25). Refer to illustration 4.

8. Put rocker shaft assembly (5) in position on the cylinder head. Make sure that the dowels in the rocker shaft supports are aligned with the dowel holes in the cylinder head.

9. Ensure that the rocker arms are aligned with the pushrods and install the rocker shaft mounting bolts. Tighten the rocker shaft mounting bolts finger tight.

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Illustration 4	g00328807

10. Tighten the cylinder head bolts by hand, as follows:

    1. Tighten all of the bolts (1 through 26) in the numerical sequence to a torque of 150 ± 15 N·m (115 ± 12 lb ft).

    2. Tighten all of the bolts (1 through 26) in the numerical sequence to a torque of 250 ± 17 N·m (185 ± 13 lb ft).

    3. Tighten all of the bolts (1 through 26) again in the numerical sequence to a final torque of 250 ± 17 N·m (185 ± 13 lb ft).

    4. Tighten all of the remaining bolts (A through G) to a torque of 43 ± 7 N·m (32 ± 5 lb ft).

11. Adjust the inlet valve lash to 0.38 mm (.015 inch) and the exhaust valve lash to 0.64 mm (.025 inch). Tighten the locknuts for the adjusting screws to a torque of 29 ± 7 N·m (22 ± 5 lb ft). Refer to the Testing and Adjusting, "Air Inlet and Exhaust System" topic for additional information on valve lash adjustments.

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Illustration 5	g00511911

12. Put the gasket and air inlet pipe (7) in position on the cylinder head. Install four bolts (6) in order to fasten air inlet pipe (7) to the cylinder head.

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Illustration 6	g00541522

13. Connect tube (8) to the inlet manifold.

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Illustration 7	g00541524

14. Put the gaskets and water pump elbow (11) in position on the engine. Install two bolts (9) that fasten water pump elbow (11) to the cylinder head. Install two bolts (10) that fasten water pump elbow (11) to the water pump.

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Illustration 8	g00541527

15. Tighten hose clamp (12) .

End By:

1. Install the valve mechanism cover. Refer to Disassembly and Assembly, "Valve Mechanism Cover - Remove and Install".
2. Install the exhaust manifold. Refer to Disassembly and Assembly, "Exhaust Manifold - Remove and Install".
3. Install the fuel injection lines. Refer to Disassembly and Assembly, "Fuel Injection Lines - Remove and Install".