TM 5-4310-393-14
a. Slowly rotate the flywheel counterclockwise (when facing flywheel) until no fuel emerges from spill
pipe on spill device 66503001.
b.
Continue to very slowly rotate flywheel while frequently blotting spill pipe with rag to absorb fuel, until
fuel just begins to weep from the spill pipe.
NOTE
The position achieved above is the
end of delivery. When the shim set is
of the correct thickness, the timing
marks (3) on the fly-wheel (1) (11.5 to
12.5
degrees)
should
align
with
reference mark (4).
c.
Block fuel hose (from fuel tank)
using fuel shutoff clamp.
d.
If timing marks do not align with
reference mark (4), rotate the outer face of the dial
gauge 61208700 until "0" mark aligns with needle
FIGURE 5-7. REFERENCE MARKS
e.
Slowly rotate the 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 re-shimming required
NOTE
The end of delivery is delayed or
advanced by adding or removing
shims (Figure 5-8, Item 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).
f.
Remove fuel shutoff clamp from fuel
hose.
FIGURE 5-8. PLACING SHIMS
g.
After correction of shimming, repeat steps 1 and 2.
3.
Adjustment of Delivery Lift. Adjust for delivery lift as follows:
NOTE
Delivery lift controls the quantity of fuel which is injected at full throttle. The
delivery lift measurement for a particular engine is stamped on the engine data and
serial number plate.
a.
With flywheel timing marks (Figure 5-9, Item 2) (11 5 to 12 5 degrees) aligned with reference mark
(3), rotate dial gauge 61208700 face to zero.
5-12
