ARMY TM 9-2815-257-24
AIR FORCE TO 38G1-128-2
MARINE CORPS TM 10155A/2815-24/3
4-11. FUEL INJECTION PUMP MAINTENANCE - cont.
Injection timing can be adjusted by adding or
removing injection pump shims (7, Figure 4-14).
If fuel is injected before a 16 degree rotation, add
shims. If fuel is not injected until after a 18
degree rotation, subtract shims. Each 0.1 mm
(0.0039 inch) shim changes timing by 1 degree.
Add or subtract shims (7) as required and retest to
ensure proper timing. Install fuel pipe (1) onto
injection pump (2). Install flywheel housing
Figure 4-14. Timing Adjustment