INJECTION PUMP SERVICE MANUAL NUMBER 22
Page 5D-16 90-860074--1 FEBRUARY 2002
Fuel Injection Pump Installation
Installation With Engine Assembled
IMPORTANT: If engine has been disturbed, or must be rotated before installing
injection pump take care not to wedge pump gear in gear housing while turning
crankshaft.
1. Ensure cylinder number 1 piston is at top dead center (TDC) of its compression stroke
and timing marks are aligned.
1. Ensure pump gear is held in the same position as when pump was removed. This should
be cylinder number 1 TDC.
2. Rotate shaft to align keyway with cylinder number 1 injector port.
NOTE: To rotate shaft, temporarily install original shaft nut and a suitable jam nut. Do NOT
damage pump shaft threads with improper nuts or overtightening.
70420
Typical
a-Shaft Keyway
3. Remove any pump backlash by rotating shaft COUNTERCLOCKWISE (when facing
the pump) until resistance is felt.
70767
70421
a
a
b
b
Typical
a-Shaft - Rotate COUNTERCLOCKWISE
b-Keyway at 11 O’clock
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