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1.油底壳进水(1)缸套穿孔康明斯NT855型柴油机工作时,其配装的湿式汽缸套与冷却液直接接触。由于冷却液循环时反复冲刷汽缸套外表面,容易使汽缸套外表面形成穴蚀及气蚀现象,久之将造成汽缸套外表面的迎水面处出现较密集的凹坑,严重时将造成汽缸套穿孔,冷却液进入柴油机油底壳内。另外,若汽缸套阻水圈损坏,冷却液也会进入油底壳内。判断缸套是否穿孔的方法如下:拆下柴油机油底壳后,将水散热器加满水,慢慢撬转柴油机,观察汽缸壁是否有冷却液流出或滴落。若有冷却液渗
1. Sump inlet (1) cylinder perforation Cummins NT855 diesel engine work, its equipped with wet cylinder liner and coolant in direct contact. As the coolant circulates repeatedly flushing the outer surface of the cylinder liner, it is easy to cause cavitation and cavitation on the outer surface of the cylinder liner. For a long time, dense pits will be formed on the outer surface of the cylinder liner. In severe cases, Perforation, coolant into the diesel oil pan. In addition, if the cylinder liner is damaged, the coolant will also enter the oil pan. To determine whether the cylinder liner perforation method is as follows: Remove the diesel engine oil pan, the water radiator filled with water, slowly pry the diesel engine to observe whether there is coolant cylinder wall outflow or dripping. If the coolant infiltration