C27 Petroleum Engine Caterpillar

Installation Procedure

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Illustration 1	g02278073

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Illustration 2	g02278373
Overhead view from the rear of the engine.

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Illustration 3	g01148791
Torque Sequence

1. Install the gaskets, O-ring seals, and the spacer plate on the engine.

2. Attach Tooling (A) and a suitable lifting device to cylinder head (23). Attach Tooling (B) to the side of cylinder head (23) that is nearest the exhaust ports. The weight of cylinder head (23) is approximately 300 kg (661 lb). Repeat this step for the other side.

3. Position cylinder head (23) on the dowel pins in the cylinder block.

   Note: Apply Tooling (C) to the bolt threads and both sides of the washers. Tighten the bolts in the following step sequence:

4. Install ten bolts (26) and 16 bolts (25) according to the following procedure.

   1. In a numerical sequence, tighten Bolt (1) through Bolt (26) to a torque of 270 ± 15 N·m (199 ± 11 lb ft).

   2. In a numerical sequence, tighten Bolt (1) through Bolt (26) to a torque of 450 ± 15 N·m (332 ± 11 lb ft).

   3. In a numerical sequence, again tighten Bolt (1) through Bolt (26) to a torque of 450 ± 15 N·m (332 ± 11 lb ft).

      Note: Apply Tooling (C) to the bolt threads and both sides of the washers. Tighten the bolts in the following step sequence:

   4. Install bolts (24). In a numerical sequence, tighten Bolt (27) through Bolt (39) to a torque of 45 ± 7 N·m (33 ± 5 lb ft).
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   Illustration 4	g02279353
   View looking through the window of the flywheel housing.

5. Lubricate the new O-ring seals and both sides of thrust washer (21) with clean engine oil. Install the O-ring seals onto the sealing plate. Position the sealing plate, adapter (22), and thrust washer (21). Install bolts (20).

   Ensure that the O-ring seals remain in position on sealing plate during installation.

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   Illustration 5	g02278613

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   Illustration 6	g01151468
   Torque Sequence

6. Position camshaft gear (19) and install bolts (18).

7. Tighten bolts (18) to a torque of 240 ± 40 N·m (177 ± 30 lb ft). Tighten the bolts in the following sequence: 1, 4, 2, 5, 3, 6, 1, 4.

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   Illustration 7	g02279036

9. Lubricate the new O-ring seals with clean engine oil. Install new O-ring seals and sealing plate (15). Install bolts (14). Install adapter (16).

   Ensure that the O-ring seals remain in position on sealing plate (15) during installation.

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   Illustration 8	g02279013

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   Illustration 9	g01151441
   Torque Sequence

10. Position damper (13) and install bolts (12). Tighten the bolts to a torque of 240 ± 40 N·m (177 ± 30 lb ft). Tighten the bolts in the following sequence: 1, 4, 2, 5, 3, 6, 1, 4.
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    Illustration 10	g02278995

11. Position cover (11) and install bolts (10).
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    Illustration 11	g02277955

12. Connect tube (17). Repeat this step for the opposite side.
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    Illustration 12	g02277933

13. Position bracket assembly (9) and install six bolts (8).
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    Illustration 13	g02358663

14. Position filter base (7) and install bolts (6).
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    Illustration 14	g02278954

15. Connect fuel hose assemblies (5). Repeat this step for the opposite side.

    Note: If the catalyst is not mounted on top of the engine, proceed to the End By procedure.

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    Illustration 15	g02277480

16. Position brace (4) and install bolts (3). Repeat this step for the opposite side.
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    Illustration 16	g02277433

17. Position brace (2) and install bolts (1). Repeat this step for the opposite side.

End By:

1. Install the Valve Mechanism Cover Bases.

2. Install the Electronic Unit Injectors.

3. Install the Water Temperature Regulator Housing.

4. Install the Inlet Manifolds.

5. Install the Exhaust Manifolds.

6. Install the Fuel Pressure Regulator.

7. If necessary, install the Catalyst Module.