TM 5-4310-393-14
Table 4-2. Direct Support Troubleshooting Procedures (Continued)
MALFUNCTION/SYMPTOM
PROBABLE CAUSE
TEST OR INSPECTION/CORRECTIVE ACTION
13. EXCESSIVE ENGINE OIL CONSUMPTION.
Tappet clearance.
Adjust as needed.
Valve guides.
Check/Replace defective guides.
Piston/cylinder.
Check/Replace defective components
14. ENGINE SMOKES WHITE.
Injector or injector sealing washer.
Clean or replace as necessary.
Fuel pump timing
Retime pump.
Injector pump pressure.
Repair/Replace as necessary.
Engine compression low.
Test for compression. Replace rings and piston if required
15. ENGINE SMOKES BLUE.
Valve guides.
Check valve guides. Replace defective components.
Poor compression.
Replace rings and piston if required. Test for compression.
4-9
