TM 9-21’O-387-24-1
REFERENCE INFORMATION
MAKE SURE AU ELECTRICAL
CONNECTtONS
ARE CLEAN AND TIGKT. CHECK FUEL SOLENOID,
COLD ADVANCE SOLENOID.
BAll-ERIES. ROTARY
SWITCH, ETC.
1.
While cranking or running the engine,
open the drain fitting and drain some fuel
into a clear container.
2.
The fuel should come out of the open
-drainvalve in a steady stream. If it
doesn’t, then answer NO to this
question.
l NOTE: Nothing will come out unless the
engine is running or cranking.
3.
Close the drainvalve and turn the rotary
switch to STOP.
4.
Check the fuel that came out to be sure
that it isn’t contaminated with water or
dirt.
5.
If the fuel didn’t come out in a steady
stream or if it is contaminated,
answer
NO to this question.
-
i
If you have trouble starting the engine, you
should have entered here by way of the
startability tests. If you didn’t begin there, go
back to page 2-45 and run the startability top
level test.
At this point, you don’t care how well it starts
or runs but just that it will run.
The answer to this question is NO if the
engine seems to start but stops almost
immediately.
- :
Engine temperature
may be determined
from vehicle temp. gauge (rotary switch
must be in RUN position) or by touching
the engine.
If it is too hot to touch com-
fortably, it is above 120° F (49O C).
Hard starting can be caused by other
things such as fuel in the lines leaking
back into the tank while the engine is
shut down. This will occur if there is an
air leak in the lines.
0 II
FUEL SYSTEM
. .
WARNING
Diesel fuel is highly flammable.
Do not perform any procedures
near fire, flames, or sparks.
Severe injury or death will result.
WARNING
A hot engine may cause serious
burns. Always use caution
when approaching a hot engine.
FUEL FILTER DRAIN FtlTlNG
2-101
