TM 5-4310-389-14
Table 4-1. Direct Support Troubleshooting Procedures (Continued)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
COMPRESSOR (Contd)
19. Engine oil consumption excessive.
Step 1.
Check rocker arm metering screws.
Adjust.
Step 2.
Check fuel feed pump diaphragm.
Replace diaphragm if required.
Step 3.
Check valve guides.
Notify General Support.
Step 4.
Check piston/cylinders.
Notify General Support.
20. Engine smokes white.
Step 1.
Check for defective injector.
Clean or replace as necessary.
Step 2.
Check injector sealing washer.
Replace if necessary.
Step 3.
Check fuel pump timing.
Retime if necessary.
Step 4.
Check injector pump pressure.
Test for serviceability; replace if required.
Step 5.
Check compression.
Test for low compression.
21. Engine smokes blue.
Step 1.
Check valve guides.
Notify General Support.
Step 2.
Check compression.
Replace rings and piston if required.
22. Engine smokes black.
Step 1.
Check engine injector.
Clean or replace injector.
Step 2.
Check fuel delivery (fuel timing).
Adjust as required.
Step 3.
Check fuel quantity adjustment.
Adjust as required.
Step 4.
Check engine compression.
Notify General Support.
4-4
