TM 5-3740-214-14
Table 5-3. Direct and General Support Maintenance Troubleshooting (Continued)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
ENGINE DOES NOT START BUT TURNS OVER (Continued)
NOTE
Because automatic compression release engines release compression at 600 rpm, there is a
different compression test procedure for this engine.
a. Start the engine and run it for fifteen minutes.
b. Shut the engine OFF and remove the spark plug.
CAUTION
BE CAREFUL when removing the spark plug. Too much force can break the insulator.
(1)
Loosen the spark plug a few turns.
(2)
Blow out the spark plug well with high pressure air. This will clean out any dirt or debris that can
fall into the cylinder.
Figure 5-48. Spark Plug Cleaning
(1)
Loosen the spark plug a few turns.
(2)
Blow out the spark plug well with high pressure air. This will clean out any dirt or debris that can
fall into the cylinder.
5-44
