TM 5-4310-354-14
Table 5-1. Direct Support and General Support Troubleshooting - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
ENGINE - continued
9. ENGINE EXHAUST EXCESSIVELY BLACK - continued
Step 2.
Check for sticking valves and improper valve clearance.
Adjust valve clearance (para 4-50). Repair or replace damaged valves (para 7-13).
Step 3.
Inspect the fuel injection nozzles.
Repair or replace injection nozzles (para 7-6).
Step 4.
Inspect thermostat for proper operation.
Replace defective thermostat (para 7-13).
10. ENGINE EXHAUST EXCESSIVELY BLUE.
Step 1.
Check valve clearance and check for sticking valves.
Adjust valve clearance (para 4-50).
Repair or replace damaged valves (para 7-13).
Step 2.
Check for correct installation of rocker arm shaft.
Install rocker arm shaft in accordance with para 7-12 and figure 7-37.
Step 3.
Inspect for damaged or worn piston rings, pistons, and connecting rods.
Repair or replace all defective parts (para 7-24).
Step 4.
Inspect for failure of main bearings, connecting rod bearing, and camshaft bearings.
Repair or replace, as necessary (para 7-26, 7-24, and 7-22).
11. EXCESSIVE OIL CONSUMPTION.
Step 1.
Check oil pan gaskets and seals for leakage.
Replace damaged gaskets and seals (para 7-15).
Step 2.
Inspect for damaged or worn piston rings, pistons, and connecting rods.
Repair or replace all defective parts (para 7-24).
Step 3.
Check for loose or missing oil header plugs.
Tighten or install plugs, as necessary (para 7-28).
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