Section 5 - Fuel System - Group 05
Injection Pump Repairs (5-21)
B Series Shop Manual
Install the nut on the pump shaft.
Install the timing pin first, then the spring.
Service Tip: Use the slot in the end of the timing pin
as a reference for properly positioning the timing pin.
The slot must be horizontal to the pump in order for
the pin to engage the slot in the pump shaft.
Depress the spring and rotate the pump shaft until the tip
of the timing pin goes into the slot in the pump shaft. The
keyway in the shaft will be at approximately the 2
Caution: Although unlikely, it is possible that the timing
pin will match the pump notch when the timing pin is first
inserted. If so, the pump will be locked. Do not exert
more than 7 N·m [10 ft-lb] torque to turn the pump shaft.
If the pump shaft does not turn with 7 N·m [10 ft-lb]
torque, remove the spring and timing pin, then rotate the
pump slightly. Repeat the previous step again.