TM-9-2350-274-BD
M109/M110/M578 VEHICLES HOWITZER, MEDIUM, SELF-PROPELLED FULL-TRACKED
TECHNICAL MANUAL; OPERATORS, ORGANIZATIONAL DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE
JANUARY 1984
TM-9-2350-274-BD - Page 67 of 219
TM 9-2350-274-BD
ENGINE
3-12. INJECTOR FAILURE
General Information
Fuel injector failure should be noticeable through a loss of power or excessive smoke.
Within the Detroit Diesel family of engines the injectors are physically interchangeable,
although their operating characteristics differ for the engine configuration they are
designed for. Injectors should be exchanged in full sets, if possible, to keep engine
operation balanced between cylinders, however, single replacement is possible. The
defective injector can be located by following this procedure
Assessment Steps:
1.
Remove valve covers.
2.
Start engine.
3.
Press firmly on injector guide follower of each injector.
4.
Listen for a change in engine operation, if a change is noticed the injector is
functioning.
5.
If no change in operation is noted, the injector is not functioning.
6.
Change injector at defective cylinder with an available injector.
TABLE 3-1.
Substitutable Injectors
ENGINE
3-53
4-53
6V-53
6V-53T
8V-71
8V-71T
INJECTOR
M50
N-70
7E50, 7E55, 7E60,
71C5, 7E65, 71B5,
B55, B60, B65, M65,
7C70, 7C75, N70,
N85, N75, 9092,9090
USED IN
Gama Goat
Commercial
M113F.O.V., Commercial, T.R.Forklifts
M551Sheridan
Power Generation
M109, M110, M107, M108S.P.Howitzer,
M578 Recovery Vehicle
❚
Change 3
3-15
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