C7.1 Marine Propulsion Engine Caterpillar


Fuel Injection Pump - Remove and Install

Usage:

C7.1 GJN

Removal Procedure

Reference: Special Instruction, "Visual Service Procedures - Colors and Symbols" , M0066576.

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
A(1)  9U-6198  Crankshaft Turning Tool 
A(2)  9U-7336  Housing 
5P-7305 Engine Turning Tool 
367-8608  Engine Timing Pin 
364-9107  Fuel Pump Locking Pin 
Loctite 243 
(1) The Crankshaft Turning Tool is used on the front pulley.
(2) This Tool is used in the aperture for the electric starting motor.

Start By:

  1. Remove the engine oil filter base.

Note: Either Tooling (A) can be used. Use the Tooling that is most suitable.

------ WARNING! ------

Contact with high pressure fuel may cause fluid penetration and burn hazards. High pressure fuel spray may cause a fire hazard. Failure to follow these inspection, maintenance and service instructions may cause personal injury or death.



NOTICE

Ensure that all adjustments and repairs that are carried out to the fuel system are performed by authorized personnel that have the correct training.

Before beginning ANY work on the fuel system, refer to Operation and Maintenance Manual, "General Hazard Information and High-Pressure Fuel Lines" for safety information.

Refer to System Operation, Testing and Adjusting, "Cleanliness of Fuel System Components" for detailed information on the standards of cleanliness that must be observed during ALL work on the fuel system.



NOTICE

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.


  1. Turn the fuel supply to the OFF position.

  2. Turn the battery disconnect switch to the OFF position.

  3. Turn the sea water feed to the OFF position.

  4. For Keel cooled, drain the coolant from the circuit.

    Drain the coolant. Refer to Operation and Maintenance Manual, "Cooling System Coolant (ELC) - Change" for the correct draining and filling procedures.

  5. Use Tooling (A) to rotate the crankshaft so that number one piston is at top dead center position . Refer to System Operation, Testing and Adjusting, "Fuel Injection Timing - Check". Use Tooling (B) to lock the crankshaft so that number one piston is at top dead center position.


Illustration 1g06267275


Illustration 2g06267280


Illustration 3g06267283


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Illustration 5g06267287


Illustration 6g06267291

  1. If necessary, remove the fuel injection pump gear and adaptor plate.

Installation Procedure

Note: Either Tooling (A) can be used. Use the Tooling that is most suitable.

  1. If necessary, use Tooling (A) to rotate the crankshaft so that number one piston is at top dead center on the compression stroke. Refer to System Operation, Testing and Adjusting, "Fuel Injection Timing - Check". Use Tooling (B) to lock the crankshaft so that number one piston is at top dead center position.

  2. If necessary, install Tooling (C) to lock the fuel injection pump in the correct position.


Illustration 7g06267292


Illustration 8g06267294


Illustration 9g06267295


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Illustration 11g06267297


Illustration 12g06267299

End By:

  1. Install the engine oil filter base.

  2. Replace the filters for primary fuel system. Refer to Operation and Maintenance Manual, "Fuel System Primary (Water Separator) Element - Replace" for the correct procedure.

  3. Replace the filters for secondary fuel system. Refer to Operation and Maintenance Manual, "Fuel System Secondary Filter - Replace" for the correct procedure.

  4. Fill the coolant. Refer to Operation and Maintenance Manual, "Cooling System Coolant (ELC) - Change" for the correct procedure.

  5. Turn the fuel supply to the ON position.

  6. Turn the battery disconnect switch to the ON position.

  7. Turn the sea water feed to the ON position.

  8. After replacement of the fuel injection pump, the fuel injection pump requires a high-pressure fuel pump calibration procedure to be performed. Refer to Troubleshooting, "Fuel Rail Pressure Problem" for the correct procedure.

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