Fig. 35. Details of Injector Filters and Caps and
Their Relative Location
operation, causing a serious oil dilution problem. Keep
the plunger and bushing together as they are mated
After washing, submerge the parts in a clean receptable
containing clean fuel oil. Keep the parts of each injector
Inspect Injector Parts
Fig. 36. Injector Rack, Gear, Spray Tip and Valve
Assembly Details and Relative Location of Parts
Inspect the teeth on the control rack and the control rack
gear for excessive wear or damage. Also check for
The current injector follower spring (.142 " diameter
excessive wear in the bore of the gear and inspect the
wire) has a free length of approximately 1.504 " and
gear retainer. Replace damaged or worn parts.
should be replaced when a load of less than 70 lbs. will
compress it to 1.028 ".
Inspect the injector follower and pin for wear. Refer to
Check the seal ring area on the injector body for burrs
Inspect both ends of the spill deflector for sharp edges
or burrs which could create burrs on the injector body or
injector nut and cause particles of metal to be
introduced into the spray tip and valve parts. Remove
burrs with a 500 grit stone.
Inspect the follower spring for visual defects.
check the spring with spring tester J 22738-02.