Diesel Generator Tech

Fuel injector faults may be caused by the following causes. A little or no fuel injected. Causes: (1) There is air in the fuel supply system. (2) Seizure of the fuel injector nozzle. (3) Abnormal fuel supply from the fuel injection pump. (4) Oil leak at high-pressure fuel pipes. (5) Wear of fuel injector nozzles. Correction Prime the fuel system. Let a professional serviceman check and replace the nozzle assembly. Refer to fuel injection pump fault for troubleshooting. Tighten the pipe locknut and replace the pipes with crack, make replacement if required. Let a professional serviceman replace the nozzle assembly. Too low fuel injection pressure. Causes: (1) Lose pressure regulating screw. (2) Deformation or break of the pressure regulating spring. (3) Seizure of needle valves. Correction: Let a professional serviceman readjust the screw to the defined pressure and tighten the locknut. Let a professional serviceman replace the injector ...