MRH-800DS— ENGINETROUBLESHOOTING
TABLE 10. ENGINE TROUBLESHOOTING
SYMPTON | POSSIBLE PROBLEM | SOLUTION | |
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| Speed control lever is in "STOP" position? | Set speed control lever to "START" position. | |
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| No fuel reaching injection pump? | Add fuel. Check entire fuel system. | |
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| Defective fuel pump? | Replace fuel pump. | |
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| Fuel filter clogged? | Replace fuel filter and clean tank. | |
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Engine will not start or start is | Faulty fuel supply line? | Replace or repair fuel line. | |
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delayed, although engine can | Compression too low? | Check piston, cylinder and valves. Adjust or | |
be turned over. | repair per engine repair manual. | ||
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| Fuel injector not working correctly? | Repair or replace injector in accordance with | |
| engine repair manual. | ||
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| Oil pressure too low? | Check engine oil pressure. | |
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| Low starting temperature limit exceeded | Comply with cold starting instructions and | |
| proper oil viscosity. | ||
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| Check whether clear (not turbid) fuel | |
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| emerges from the fuel line (detach from | |
| Fuel separates has inadequate resistance | injection pump). If the fuel is turbid or | |
At low temperatures engine will | to low temperatures? | separated, warm up the engine or drain the | |
| complete fuel supply system. Refuel with | ||
not start. |
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| winter grade diesel fuel. | ||
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| Engine oil too thick? | Refill engine crankcase with correct type of | |
| oil for winter environment. | ||
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| Throttle lever in STOP position? | Reposition throttle lever to RUN position. | |
Engine fires but stops soon as |
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Fuel filter blocked? | Replace fuel filter. | ||
starter is switched off. | |||
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| Fuel supply blocked? | Check the entire fuel system. | |
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Engine stops by itself during | Fuel tank empty? | Add fuel. | |
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normal operation. | Fuel filter blocked? | Replace fuel filter. | |
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