(1)喷油泵磨损导致柴油进入机油此故障表现为:机油面明显升高,且伴有柴油味,严重时从加机油口或通气孔向外冒油。对于活塞式输油泵,柴油进入机油,只有两种途径:柴油可直接从输油泵的滚轮体侧隙进入喷油泵下室润滑油中;喷油泵分泵柱塞偶件磨损超限,造成分泵内漏(严重时会影响到发动机的正常启动),内漏的柴油会流入下室润滑油中。 (1) The fuel pump wear led to diesel oil into the oil This failure is manifested as: the oil surface was significantly increased, and accompanied by diesel smell, serious oil from the plus port or vents out of oil. For the piston pump, diesel into the oil, there are only two ways: diesel directly from the pump roller body backlash into the fuel pump room under the oil; injection pump sub-pump plunger wear overrun, resulting in sub-pump Internal leakage (serious will affect the normal start of the engine), internal leakage of diesel oil will flow into the next room.