C3.3 Industrial Engine Caterpillar

Removal Procedure

Start By:

1. Remove the fuel injection lines. Refer to this Disassembly and Assembly , "Fuel Injection Lines - Remove".

2. Remove the crankshaft pulley. Refer to this Disassembly and Assembly , "Crankshaft Pulley - Remove and Install".

3. Remove the front cover. Refer to this Disassembly and Assembly , "Front Cover - Remove and Install".

1. Ensure that the No. 1 cylinder is at top dead center on the compression stroke. Refer to the Testing and Adjusting , "Finding Top Center Position for No. 1 Piston".
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   Illustration 1	g00956204
   Typical example

2. Loosen the locking screw (5). Rotate the spacer (6) in order to allow the locking screw (5) to tighten against the shaft of the fuel injection pump. Rotate the fuel injection pump gear in a counterclockwise direction in order to remove the backlash. Tighten the locking screw (5) to a torque of 12 ± 2.5 N·m (8.8 ± 1.8 lb ft).

   Note: The locking screw (5) must be tightened in order to prevent the shaft of the fuel injection pump from rotating. The shaft of the fuel injection pump must not be rotated after the fuel injection pump has been removed from the engine.

   Note: Put identification marks on all fuel hose assemblies and on all tube assemblies for installation purposes. After being disconnected, plug all fuel hose assemblies and plug all tube assemblies with suitable plastic plugs. Also install dust caps on all of the connectors on the fuel injection pump. This helps prevent fluid loss, and this helps to keep contaminants from entering the system.

3. Disconnect the fuel return line (1). Disconnect the tube assembly (4) from the fuel injection pump.

4. Disconnect the fuel line (3).

5. Disconnect the harness assembly (2) from the timing advance solenoid (7).
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   Illustration 2	g01011369
   Typical example

6. Remove the nut (8) and the washer from the shaft of the fuel injection pump.

7. Use a suitable puller in order to remove the fuel injection pump gear (9).

   Note: Do not pry the fuel injection pump gear (9) from the shaft of the fuel injection pump.

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   Illustration 3	g01062058
   Typical example

   Note: The two steps that follow are only required if the bracket (11) is installed on the fuel injection pump.

8. Remove the nut (14). Remove the bolt (12).

9. If necessary, remove the setscrew (15) and the bracket (11) from the cylinder block.

10. Remove the setscrews (13) in order to remove the fuel injection pump.

11. Remove the fuel injection pump from the front housing. Remove the O-ring (10) and discard the O-ring from the fuel injection pump.