TM 10-4320-310-14
6-9.
REPLACE/ADJUST INJECTION PUMP (Continued)
NOTE
The position achieved above is the end of delivery. If the
shim pack is of the correct thickness, the timing marks on
flywheel (1) (11.5 to 12.5 degrees) should align with
reference mark (4).
3
Block fuel hose (from fuel tank) using a C-clamp.
4
If timing marks do not align with reference mark (4), rotate
outer face of dial gauge until "0" mark aligns with needle.
5
Slowly rotate flywheel (1) in either direction to align timing
marks of 11.5 to 12.5 degrees with reference mark (4). Gauge
reading will indicate amount of reshimming (as necessary).
NOTE
The end of delivery is delayed or advanced by adding or
removing shims (1) to Injection pump (2). The general rule
for shimming Is as follows:
More shims = end of delivery later (lower number of
degrees).
Less shims = end of delivery earlier (higher number of
degrees).
6
Remove C-clamp from fuel hose.
7
After correction of shimming, repeat steps 1 and 2 for checking purposes.
6-32