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TM 55-1905-221-14-4
6-31. FUEL INJECTORS (Continued).
o. When handling the injector
plunger, do not touch the
finished plunger surfaces
with your fingers. Wash the
plunger and bushing with
clean fuel oil and dry them
with compressed air. Be
sure the high pressure bleed
hole is not plugged. If
this hole is plugged, fuel
leakage will occur at the
upper end of the bushing
where it will drain out of
the injector body vent and
rack holes, during engine
operation, causing a serious
oil dilution problem. Keep
the plunger and bushing
together as they are mated
p. After washing, submerge the
parts in a clean receptacle
containing clean fuel oil.
Keep the parts of each
injector assembly together.
8. Injector
a. Inspect the teeth on the control
rack gear for excessive
wear or damage. Also check
for excessive wear in the
bore of the gear and inspect
the gear retainer. Replace
damaged or worn parts.
b. Inspect the injector follower
and pin for wear.


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