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一台上海320型推土机出现水散热器水位升高,并向外喷水的现象。现场检查发现:柴油不断地从水散热器盖处溢出,柴油机停止工作后溢油现象消失;柴油机动力未明显下降,机器仍能继续工作,烟色也正常,冷却效果明显下降,水温偏高;打开水散热器盖时可发现冷却液上部漂浮有很厚的一层柴油。由PT燃油系统结构(见图1)知:在喷油器体的外圆上装有3个O形圈,它
A Shanghai 320 bulldozer water radiator water level rise, and the phenomenon of water jet. The on-site inspection found that the diesel continuously overflowed from the water radiator cover, the oil spill disappeared after the diesel engine stopped working, the power of the diesel engine did not obviously drop, the machine could still work, the smoke color was also normal, the cooling effect decreased obviously and the water temperature was too high; Open the water radiator cover can be found in the upper part of the coolant floats a thick layer of diesel. By the PT fuel system structure (see Figure 1) that: the outer cylinder of the injector body is equipped with three O-ring, it