| |
TM 10-3930-643-34
ENGINE, FUEL, EXHAUST AND COOLING TROUBLESHOOTING AND MAINTENANCE. (cont)
4-1.
Engine, Fuel, Exhaust and Cooling Troubleshooting. (cont)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
d.
ENGINE STALLS OR LACKS POWER. (cont)
Step 13. Test for proper engine cylinder compression
(335-365 psi),
refer to paragraph 4-1.i.
If compression test does not meet specifications, remove cylinder
head and inspect for worn valves and/or valve seats or worn rings,
refer to paragraph 4-4.
If compression test meets specifications, proceed to step 14.
Step 14. Check for malfunctions in the transmission,
refer to
Transmission Troubleshooting.
Step 15. Perform Stall Test, refer to paragraph 6-3.
If transmission is operating properly, proceed to step 16.
Step 16. Test for excessive hydraulic pressure, refer to Hydraulic
System Troubleshooting.
e.
EXCESSIVE CRANKCASE PRESSURE.
Step 1.
Perform crankcase pressure test, refer to paragraph 4-1.k.
Step 2.
Test for proper engine cylinder compression (335-365 psi),
refer to paragraph 4-1.i.
If compression test does not meet specifications, check cylinder
head gasket for cracking, nicks, cuts and distortion,
refer to
paragraph 4-4 for replacement.
If cylinder head gasket is satisfactory, check for worn, stuck,
broken piston rings or cracked pistons or cylinder liners.
If any of these conditions exist, contact General Support.
4-8
|
