一台433A发动机因动力不足,排气管冒黑烟而提出校喷油泵。经更换柱塞、出油阀,调试好油泵后装机试验,排气管冒轻微蓝灰色烟。车主行驶几天反映情况说动力是可以了,就是机油消耗过大,因此建议修理发动机。更换了缸套、活塞、活塞环、气门及气门导管。修理后,发动机机油消耗大现象仍未解决,于是认为还是发动机问题。进行再一次检修发动机,结果还是机油消耗大。据修发动机 A 433A engine due to lack of motivation, black smoke exhaust pipe proposed fuel injection pump. After the replacement of the plunger, the valve out of oil, commissioning of the pump installed test, the exhaust pipe to take a slight blue-gray smoke. Driving a few days to reflect the situation that power is OK, that is, oil consumption is too large, it is recommended to repair the engine. Changed cylinder liner, piston, piston ring, valve and valve guide. After repair, the engine oil consumption is still not resolved, so that the problem is still the engine. To repair the engine again, the result is oil consumption. According to repair engine