Your Caterpillar dealer can provide these services and components. Your Caterpillar dealer can ensure that the components are operating within the appropriate specifications.
Note: The driven equipment may also require service when the engine is overhauled. Refer to the literature that is provided by the OEM of the driven equipment.
The following definitions explain the terminology for the services that are performed during an overhaul:
Exchange - Your Caterpillar dealer will exchange your worn parts for parts that conform to original functional specifications.
Inspect - Inspect the components according to the instructions that are in Caterpillar reusability publications. Refer to Guidelines for Reusable Parts and Salvage Operations, SEBF8029, "Index of Publications on Reusability or Salvage of Used Parts". The guidelines were developed to help Caterpillar dealers and customers to avoid unnecessary expenditures. New parts are not required if the existing parts can still be used, reconditioned, or repaired. If the components are not in the reusability guidelines, refer to the Service Manual, "Specifications" module.
Install New - The service life of the part is exhausted. The part cannot be reconditioned. The replacement part must be a new part.
Rebuild - The component is reconditioned to comply with reusability guidelines.
Replace - The service life of the part is exhausted. The part must be replaced with a part that meets functional specifications. The replacement part may be a new part, a rebuilt part, or a used part.
If you elect to perform an overhaul without the services of a Caterpillar dealer, be aware of the recommendations in Table 1.
| Top End Overhaul (1) | |
| Clean | Oil suction screen
Drain screen for turbocharger oil (1)(2) |
| Clean
Inspect Pressure test |
Aftercooler core (3) |
| Inspect | Connecting rod bearings (4) |
| Piston pins (3) | |
| Inspect
Exchange |
Lifters |
| Inspect
Rebuild Exchange |
Cylinder head assemblies |
| Electronic Fluid Temperature Control (ESTAT) | |
| Fuel priming pump | |
| Fuel transfer pump | |
| Prelube pump | |
| Inspect
Replace |
Crankshaft thrust plates |
| Fuel pressure regulating valve | |
| Fuel injectors | |
| High-pressure fuel rail | |
| Pushrods | |
| Quill tubes | |
| Inspect
Rebuild |
Rocker arms |
| Install new | Air inlet manifold (gaskets and seals) |
| Exhaust manifold (seals and bellows) | |
| Rebuild
Exchange |
Turbochargers |
| Replace | High-pressure fuel pump |
| (1) | For instructions on removal and installation of components, see the Service Manual, "Disassembly and Assembly" module. |
| (2) | The screen is located in the turbocharger support. |
| (3) | For instructions on cleaning the core, see this Operation and Maintenance Manual, "Aftercooler Core - Inspect/Clean" topic. |
| (4) | Inspect ONLY TWO of the components from each cylinder bank. This inspection will provide adequate examples of the condition of the other corresponding components. |