Diesel MFI Pump: Service and Repair

Fig. 14 Fixing injection pump pulley with lock bolt:

Fig. 22 Injection pump rear bracket tightening sequence:

1. Remove timing belt. See "Timing Belt, Replace."
2. To prevent rotation of injection pump pulley during disassembly, thread a 8 mm 1.25 pitch bolt through the pulley into the housing, Fig. 14.
3. Remove injection pump pulley bolt.
4. Remove bolt installed in step two, then using a suitable puller remove injection pump pulley.
5. Disconnect fuel cut solenoid valve switch wiring and tachometer pickup sensor wiring at connector.
6. Disconnect accelerator cable from pump lever. If equipped with automatic transmission, remove throttle valve control cable.
7. Disconnect vacuum hose from fast idle actuator.
8. Disconnect fuel hoses from injection pump.
9. Remove six screws attaching injection pipe clips and remove.
10. Remove injection pipes.
11. Remove injection pump rear bracket then control lever spring.
12. Remove attaching nuts and pump with fast idle device installed.
13. Install injection pump with fast idle device installed by aligning notched line on pump flange with the line on the front plate.
14. Install rear bracket bolts following sequence in Fig. 22.
15. Install the injection pump pulley by aligning it with key groove, torque nut to 43 to 50 ft. lbs. Hold pulley from rotating by installing a bolt as described in step 2.
16. Refer to "Timing Belt, Replace" for reassembly procedures.