Diesel Injector Fuel Injector 0445120211 Bosch for Cummins Engine

Three, the oil leakage of the oil pipeline joints and diesel filter joints of the low pressure oil pipeline joints and diesel filter joints because the two planes are not parallel, roughness is large; The plane roughness of pipe bolt is large; The connection plane is not perpendicular to the center line of the inner thread, and the copper gasket is deformed after many disassembly and assembly, which causes oil leakage. At this time, the damaged parts should be repaired or replaced. The sealing ring of the diesel filter is aging and deformed, or the filter cover pressing nut is not tightened, and the sand hole on the cover of the diesel filter will cause oil leakage. At this time, the sealing ring should be replaced, the pressing nut should be tightened, and the sand hole should be repaired with epoxy resin glue.

Four, high pressure oil pipe leakage

In addition to cracking, the high-pressure tubing joint is often damaged due to the wrong Angle between the high-pressure tubing and the injector when tightening the high-pressure tubing nut. Excessive pressure adjustment of the fuel injector, failure to install high pressure oil pipe safety and high vibration of diesel engine will seriously affect the service life of the high pressure oil pipe. Therefore, attention should be paid to the installation Angle of the high pressure oil pipe and the oil injector during assembly. The pressure of suona should be stable within the range of 12.74, 0.49 mpa (130, 5 kg force/cm). And install high pressure tubing safety piece, such as diesel engine vibration should be eliminated in time.

Five, fuel injection pump oil leakage

1. The oil outlet valve seat has longitudinal cracks. At this time, the oil outlet valve seat should be replaced.

2. The oil outlet valve washer is cracked, and diesel oil leaks out from the oil outlet valve tight seat and the screw thread of the pump body. At this time, the oil outlet valve washer needs to be replaced.