First:low fuel pressure.Check for fuel in the tank.Check for leaks or concave bends in the fuel supply line between the fuel tank and the fuel pump.Check for air entering the fuel system,and whether the fuel control valve is jammed,stuck or invalid.Check fuel pressure.When the engine is running at full load,the outlet pressure of the fuel delivery pump should be at least 415kPa.If the fuel pressure is lower than the above pressure,the fuel filter element should be replaced.If the oil pressure is still low,check the fuel transfer pump.

 

　　Second:The valve clearance is wrong.Adjust the valve clearance.

 

　　Third:poor fuel quality.Drain the fuel in the fuel tank and replace the fuel filter.Fill the tank with premium fuel.

 

　　Fourth:The power setting is too low.Adjust the engine power according to the specifications on the engine brand.

 

　　Fifth:carbon deposits in the turbocharger.Check turbocharger,repair if necessary.

 

　　Sixth:Check the intake manifold pressure.Check the air filter for clogging.

 

　　Seventh:The air filter is blocked.

 

　　Diesel generator set rental manufacturers remind users:Diesel generators are overheated and the ambient temperature is too high:the temperature of the engine oil and cooling water is very high,and the exhaust temperature is also greatly increased.Check the cooler and radiator to remove scale;check whether the relevant pipelines have passed through Small.If the ambient temperature is too high,ventilation should be improved and cooling measures should be strengthened temporarily..