TM 10-3930-641-10
TROUBLESHOOTING PROCEDURES - CONTINUED
0010 00
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
ENGINE - CONTINUED
CAUTION
2. Engine Cranks but Fails to Start (Operating
Temperature Below 32F [0C]) -
DO NOT crank starter motor for more than 30 sec-
Continued.
onds at a time. After 30 seconds, allow starter
motor to cool for at least 2 minutes before attempt-
ing to start engine again. Excessive heating of
starter motor may result in damage or premature
starter failure.
If engine still will not start, notify
3. While cranking engine, press
ether starting aid switch. Wait
Organizational Maintenance.
approximately 2 seconds
between injections.
1. Check fuel level (WP 0012
Add fuel as necessary (WP 0012
3.
Engine Misfires, Runs Rough, or Stalls at
Low RPM.
test step 2.
Notify Organizational
2. Inspect fuel lines between fuel
tanks and fuel transfer pump
Maintenance.
for leaks, crimps, and bends.
Check air cleaner indicator on
If indicator is illuminated, service
4.
Engine Does Not Develop Full Power.
instrument panel.
precleaner (WP 0012 00) and
retest. If problem still exists,
notify Organizational
Maintenance.
Check air cleaner indicator on
If indicator is illuminated, service
5.
Engine Does Not Idle Properly.
instrument panel.
precleaner (WP 0012 00) and
retest. If problem still exists,
notify Organizational
Maintenance.
Check air cleaner service
If indicator is illuminated, service
6.
Unusual Engine Vibration.
indicator.
precleaner (WP 0012 00) and
retest. If problem still exists,
notify Organizational
Maintenance.
Check for water, sediment, and
Notify Organizational
7.
Engine Knocks.
cloudiness in fuel.
Maintenance.
Check air cleaner service
If indicator is illuminated, service
8.
Black or Gray Smoke from Exhaust.
indicator.
precleaner (WP 0012 00) and
retest. If problem still exists,
notify Organizational
Maintenance.
Inspect for overfilled engine oil
Notify Organizational
9.
White or Blue Smoke from Exhaust.
crankcase (WP 0012 00).
Maintenance.
