Quantcast EXCESSIVE FUEL CONSUMPTION.

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TM 9-2815-226-34-1
Table 2-1. TROUBLESHOOTING PROCEDURES (Cont)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
13.
EXCESSIVE FUEL CONSUMPTION.
Step 1. Check air intake and exhaust for restrictions.
Remove restrictions (TM 9-2320-281-20).
Step 2. Check fo r external fuel leaks.
Repair as necessary.
Step 3. Check for improper injector flow adjustments.
Test and adjust injector (para 3-75).
Step 4. Check for cracked injector body or cup.
Replace defective injector (para 3-6 and 3-94).
Step 5. Check for damaged injector O-rings.
Replace O-rings (para 3-73).
Step 6. Check for incorrect valve and injector timing.
Time valves and injectors (para 3-94).
Step 7. Check for defective or miscalibrated fuel pump.
Test and calibrate pump (para 3-84).
Step 8. Check for excessive main bearing clearances.
Replace defective bearings and recondition crankshaft as necessary (para 3-6).
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