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
The engine must be turned over to check the crankcase vacuum.
a. Remove crankcase plug-dipstick.
Figure 5-46. Installation of Vacuum Gage
b. Place vacuum gage in dipstick hole. Make sure it seals well.
c. Test the vacuum.
(1)
If the vacuum is 1/2 inch to 1 inch (12.7 mm to 25.4 mm) of mercury, the engine is ok.
(2)
If the vacuum is less than 1/2 inch (12.7 mm) of mercury, go to Step 13.
5-42
