TM 9-2320-387-24-l
2-28. FUEL SYSTEM TESTS
These fuel system tests can be run any time you think there may be a problem with the fuel system
or if you were sent here from another test.
If you are running this test because the engine runs rough, remember that air intake and exhaust as
well as internal mechanical problems can also cause this condition.
At the bottom of this page is a simplified block diagram which shows how the different fuel system
components relate to each other. Refer to fold-out page FP-1 and leave open for reference while you are
testing.
k
v
4
ENGINE GOVERNOR
4
E;lEANICAL
-I INJECTORS
FUEL
PUMP
4
7
MECHANICAL
DRIVE
FUEL
FILTER
BAl7ERYI
_ ALTERNATOR
INJECTION
PUMP
COLD
4
.
ADVANCE
SOLENOID
4
2-99
