TM 9-2320-272-24-4
5-19. FUEL INJECTOR REPAIR (Contd)
c. Inspection
NOTE
l Bright spots or surface disruption at top of plunger-machined
area, on opposite side at bottom or midpoint, are normal results
of rocker lever action.
l This task pertains to the non-top stop and top stop injectors.
Inspect machined surfaces of plunger (1) for pitting, wear, cracks, and looseness. Narrow streaks
1.
running length of plunger (1) are normal. Plunger (1) should be one solid part. If plunger (1) is
pitted or worn, or if cracks or looseness exist, replace plunger (1) and injector barrel (4).
Inspect injector barrel plunger bore (2) for scoring with strong magnifying glass. If scoring exists,
2.
replace injector barrel (4) and plunger (1).
Inspect injector barrel (4) surface at each end for burrs or scratches. If burrs or scratches exist,
3.
replace injector barrel (4) and plunger (1).
Inspect injector barrel check ball seat (3) for nicks or burrs. If nicks or burrs exists, replace injector
4.
barrel (4) and plunger (1).
5-128
