BOSCH FUEL INJECTION PUMP 0445020113 FOR CUMMINS

Maintenance methods of diesel engine fuel injection pump

(3) Regularly check and adjust the fuel supply advance angle of the fuel injection pump and the fuel supply interval angle of each cylinder
During use, due to the loosening of the connecting bolts of the coupling and the wear of the camshaft and the roller body parts, the fuel supply advance angle and the fuel supply interval angle of each cylinder are often changed, which makes the combustion of diesel oil worse, and the power and economy of the diesel engine The performance becomes poor, and at the same time, it is difficult to start, the operation is unstable, abnormal noise and overheating. In actual use, most drivers pay attention to the inspection and adjustment of the overall fuel supply advance angle, but ignore the inspection and adjustment of the fuel supply interval angle (involving the adjustment of the single pump fuel supply advance angle), resulting in that after the overall adjustment, although the fuel supply of the first cylinder is normal However, due to the wear and tear of the camshaft and roller transmission parts of the other cylinders, the oil supply is not necessarily timing, which will also cause difficulty in starting the diesel engine, insufficient power, and unstable operation. Therefore, for fuel injection pumps that have been used for a long time, more attention should be paid to the inspection and adjustment of the fuel supply interval angle.
(4) Regularly check and adjust the fuel supply of each cylinder of the fuel injection pump
Due to the wear of the plunger coupling and the oil outlet valve coupling, the internal leakage of diesel oil will reduce or uneven the fuel supply of each cylinder, resulting in difficulty in starting the diesel engine, insufficient power, increased fuel consumption, and unstable operation. Therefore, it is necessary to regularly check and adjust the fuel supply of each cylinder of the fuel injection pump to ensure the power of the diesel engine. In actual use, the amount of fuel supplied to each cylinder can be determined by observing the exhaust of the diesel engine, listening to the sound of the engine, and feeling the temperature of the exhaust manifold.

nce.