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在修理CA-10B发动机的过程中,遇到过这样一个现象,新换的机油用不了多少天,就失去了润滑效能,变质变色,没有粘性,机油压力降低,曲轴两端机油渗漏十分严重,发动机无法工作。检查曲轴油封均符合要求。是什么原因呢?经分析,原来是驾驶员不慎丢失了加机油口的盖,改换了螺母的形式(通风循环滤清器也损坏了)。这样,机油从气门室偏盖的通气循环出口激溅得厉害,驾驶员嫌脏,又把此口堵死。结果是,从缸筒、活塞、活塞环漏出的废气进入曲轴箱内,无法排出,使机油氧
In the process of repairing CA-10B engine, encountered such a phenomenon, the new oil for less than a few days to lose the lubrication performance, deterioration of color, no sticky, lower oil pressure, oil leakage at both ends of the crankshaft is very serious , The engine can not work. Check the crankshaft oil seal are in line with requirements. What is the reason? The analysis, the original is the driver accidentally lost the plus port cap, change the form of the nut (ventilation loop filter is also damaged). In this way, the oil from the valve chamber partial ventilation loop outlet splashed amazing, the driver too dirty, this port blocked again. As a result, the exhaust gas discharged from the cylinder tube, the piston and the piston ring enters the crankcase and can not be discharged, so that the oil oxygen