Marine Diesel Engine Troubleshooting

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Sunday, June 22nd, 2008 Subscribe To Our Feed

Marine Diesel Engine Troubleshooting

If your marine diesel engine fails to start it could be for any of the following reasons…

Engine does not turn over:

• Totally flat battery
• Battery connections or fuses
• Faulty switches (battery and starting circuit)
• Starter solenoid
• Starter motor
• Engine locked up –– water or oil in cylinder (or seized up)

Engine turns over but does not fire:

• Fuel is shut off / no supply
• Low cranking speed: engine in gear; auxiliary equipment engaged or low battery charge
• Cold weather thickens the oil in the crankcase (turn the engine over a few times) also affects
battery cranking efficiency
• Engine in poor condition – low compression – too cold
• Poor fuel injection
• Check engine stop control has been reset
• No air – emergency shut down stopping air (GM two strokes)
• The pre heater (glow plugs) not operating
• Air or water in fuel

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