Start By:
- Drain the coolant from the cooling system into a suitable container for storage or for disposal. Refer to Operation and Maintenance Manual, "Cooling System Coolant - Change" for the correct draining and filling procedure.
- Remove the expansion tank.
- Remove the fuel manifold (rail).
- Remove the exhaust manifold.
- Remove the air cleaner housing.
- Remove the crankcase breather.
- Remove the rocker shaft and pushrods.
- Remove the electronic unit injectors.
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Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. |
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Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat® products. Dispose of all fluids according to local regulations and mandates. |
- Disconnect the electrical connectors and remove the cable straps that attach harness assembly (1) to the cylinder head. Position harness assembly (1) aside.
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Illustration 2 g03361977 - Remove bolts (3) and remove bypass pipe (2).
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Illustration 3 g03361978 - Loosen clamps (5) and remove hose assembly (4).
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Illustration 4 g03361979 Show/hide table
Illustration 5 g03362051 - Remove bolts (6) and (7). Remove fuel line assembly (8).
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Illustration 6 g03361996 Show/hide table
Illustration 7 g03362016 Sequence for tightening the bolts for the cylinder head Note: Follow the correct sequence in order to help prevent distortion of the cylinder head.
- Gradually loosen bolts (9) in the reverse numerical order to the tightening sequence. Refer to the Illustration 7.
- Remove bolts (9) from cylinder head (10).
- Attach a suitable lifting device to cylinder head (10). Support the weight of the cylinder head. The weight of the cylinder head is approximately
96 kg (212 lb) .Note: A spreader bar must be used to distribute the weight of the cylinder head during the lifting operation.
- Use the suitable lifting device to lift cylinder head (10) off the cylinder block.
Note: Do not use a lever to separate the cylinder head from the cylinder block. Take care not to damage the machined surfaces of the cylinder head during the removal procedure.
Show/hide tableNOTICE Place the cylinder head on a surface that will not scratch the face of the cylinder head.
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Illustration 8 g03362040 - Remove cylinder head gasket (12).
- Note the position of dowels (11) in the cylinder block.
- If necessary, remove the water temperature regulator from the cylinder head. Refer to Disassembly and Assembly, "Water Temperature Regulator - Remove and Install" for the correct procedure.
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| Illustration 1 | g03361976 |
