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Page Title:
Table 1. Engine Troubleshooting Procedures - Continued. |
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 TM 9-2320-303-24-1
Table 1. Engine Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
8.
Sudden Loss of Power - Continued.
3. Check for dirty fuel filter.
Service fuel filter (WP 0035 00
and WP 0036 00).
4. Check for leaking fuel lines.
Tighten connections or replace
fuel lines and hoses as required
5. Check for air cleaner element Service air cleaner element as
restriction.
necessary (WP 0031 00).
6. Check for congealed fuel (cold Check fuel specification (TM 9-
weather).
2320-303-10).
9.
Gradual Loss of Power, No Smoke.
1. Check for leaking fuel lines.
Tighten connections or replace
fuel lines and hoses as required
2. Check for air intake restriction. Service air intake as necessary
3. Check for worn accelerator rod Adjust and replace worn parts
linkage.
4. Check for congealed fuel (cold Check fuel specification (TM 9-
weather).
2320-303-10).
10. Slow Deceleration, Engine "Floats".
Check for air leaks in fuel pump Service supply lines and hoses as
supply lines and hoses.
necessary (WP 0038 00).
11. Erratic Idle Speed.
Check for air leaks in fuel pump Service supply lines and hoses as
supply lines and hoses.
necessary (WP 0038 00).
12. Excessive
Smoke
During 1. Check for dirty fuel filter.
Service fuel filter (WP 0035 00
and WP 0036 00).
2. Check for air crossover tube Repair air crossover tube leaks or
leaks.
damage (TM 9-2815-225-34&P).
13. Excessive Exhaust Smoke Throughout Speed 1. Check for dirty air cleaner Clean or replace element (WP
Range.
element.
2. Check for poor quality fuel.
Check fuel specification (TM 9-
2320-303-10). Refer to TM 9-
2815-225-34&P.
14. High Fuel Consumption.
Check for poor quality fuel.
Check fuel specification (TM 9-
2320-303-10). Refer to TM 9-
2815-225-34&P.
15. Low Oil Pressure.
1. Check oil level.
Fill to proper level (TM 9-2320-
303-10).
2. Check filter.
Replace filter (WP 0028 00).
3. Check if oil pressure line and If unrestricted, replace oil
gage orifices are restricted.
pressure gage (WP 0062 00).
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