Diesel engine troubleshooting

If the diesel engine works badly or with faults, check up the ignition system and a fuel system. If during this check of the reason of bad work of the engine to find it was not possible, inspect a compression. Regular carrying out of this check will allow you to warn occurrence of failures in advance also.

Possible failures of the diesel engine, their reason and elimination modes:
Low compression in engine cylinders: the layer pad of a head of cylinders is punched - replace a layer pad; piston rings are worn out or damaged - replace rings; the bucket or the cylinder is worn out - repair or replace the bucket and/or the cylinder block; the valve seat is worn out or damaged - repair or replace a valve seat and/or the valve.
Oil low pressure: engine oil low level - check up engine oil level; the oil pressure sensor is faulty - replace an oil pressure sensor; the oil filter is soiled - replace an oil filter; pinion gears of the oil pump are worn out or a cover - replace the oil pump or a cover; liquid engine oil - replace engine oil; the pressure-relief valve is opened - repair a pressure-relief valve; spacings in bearings are increased - replace liners of bearings.
Oil high pressure: the pressure-relief valve is closed - repair a pressure-relief valve.
Engine vibration: engine bearers (front are not tightened and rear) - tighten the demanded moment of an engine bearer; the bracket of fastening of a gear box is not tightened - tighten the demanded moment a bracket of fastening of a gear box; the underframe bracket is not tightened - tighten the demanded moment an underframe bracket; the central bearing part is not tightened - tighten the demanded moment the central bearing part; the gear box bearing part is damaged - replace a gear box bearing part; the underframe bearing part is damaged - replace an underframe bearing part; the bearing part shaft is damaged - replace a bearing part shaft.
Noise of valves: liquid engine oil - replace engine oil; the valve stem or valve guide bush are worn out or damaged - replace valves or guide bushes of valves.
Knocks in bent shaft main bearers: insufficient oil supply - check up engine oil level; liquid engine oil - replace engine oil; the spacing in bearings is increased - replace liners of bearings.
The noise published by a toothed belt: wrong tension of a toothed belt - adjust a toothed belt tension.
Cooling fluid low level: cooling fluid escape: are subjected corrosion or hoses (a radiator hose, a heater hose etc.) are torn - replace or tighten loose straps; the valve of a cover of a radiator is faulty - replace a radiator cover; the thermostatically controlled chamber housing is damaged - replace a layer pad or a housing; the radiator centre hub is damaged - replace; the water pump or layer pad is faulty - replace a layer pad or a water pump.
Pollution of tubes of a radiator: extraneous inclusions in a cooling fluid - replace a cooling fluid.
Cooling fluid heat: the thermostatically controlled chamber is faulty - replace a thermostatically controlled chamber; the radiator cover is faulty - replace a radiator cover; ports or cooling hoses are clogged - replace or clear the clogged elements of system of cooling; the drivebelt is not tightened or is torn - adjust a tension or replace a drivebelt; the water pump is faulty - replace a water pump; the cooling fluid temperature detector is faulty - replace a cooling fluid temperature detector; the electric fan of a radiator is faulty - replace or repair the radiator fan; the radiator temperature-sensitive element is faulty - replace a radiator temperature-sensitive element; the cooling fluid does not suffice - add a cooling fluid.
Low temperature of a cooling fluid: the thermostatically controlled chamber is faulty - replace a thermostatically controlled chamber; the temperature detector of a cooling fluid or its wiring is faulty - replace a cooling fluid temperature detector.
The electric fan of a radiator does not work: the cooling fluid temperature detector, the fan electric motor, the relay of the fan of a radiator, wiring or the fuse plug is faulty - replace or repair the damaged elements.
Escapes of the fulfilled gases: joints are slackened - tighten joints; the tube is damaged or the muffler - replace or repair a tube or the muffler.
Unwanted sounds from an exhaust system of the fulfilled gases: the partition in the muffler is damaged - replace the muffler; the rubber bearing part is damaged - replace a rubber bearing part; tube or the muffler contact to a body - adjust position of an exhaust system of the fulfilled gases.