C2.4 Tier 4 Final Engines for Caterpillar Built Machines Cylinder Head - Remove and Install Caterpillar

Removal Procedure

Start By:

1. Remove rocker arm shaft and pushrods.

2. Remove inlet manifold.

3. Remove exhaust manifold.

4. Remove electronic unit injectors.

5. Remove front housing.

6. Remove glow plugs.

1. Drain the coolant. Refer to Operation and Maintenance Manual, "Cooling System Coolant - Change" for the correct draining and filling procedures.
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   Illustration 1	g06013147

2. Remove bolts (1), nut (2), and flange assembly (3).
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   Illustration 2	g06013167

3. Use a suitable lifting device to remove cylinder head (5). The weight of cylinder head (5) is approximately 28 kg (61 lb).

4. Remove bolts (4), cylinder head (5), and the cylinder head gasket.

Installation Procedure

1. Install cylinder head (5) in the reverse order of removal.
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   Table 1

   Gasket Dimension (Number)	Piston Protrusion
   15	0.475 ± 0.525 mm (0.0187 ± 0.0207 inch)
   20	0.525 ± 0.575 mm (0.0207 ± 0.0226 inch)
   25	0.575 ± 0.625 mm (0.0226 ± 0.0246 inch)
   30	0.625 ± 0.675 mm (0.0246 ± 0.0266 inch)
   35	0.675 ± 0.725 mm (0.0266 ± 0.0285 inch)

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   Illustration 3	g06045526

   1. Select the cylinder head gasket based on piston protrusion if:

      • the piston, piston pin, small end bushing, connecting rod, or crankpin bearings have been replaced.

      • cylinder head or block have been machined.

      If none of the above were done, then install a new cylinder head gasket with the same mark. Refer to illustration 3 and table 1.

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      Illustration 4	g06013250

   2. Apply clean engine oil to the threads of bolts (4).

   3. Tighten bolts (4) in numerical sequence shown in illustration 4 to a torque of 93 N·m to 98 N·m (69 lb ft to 72 lb ft)