发动机排气冒蓝烟,主要是烧机油。烧机油的主要原因是缸套、活塞、活塞环磨损,或是油底壳机油油面过高所致。出现这种情况,就要认真注意检查。首先检查油底壳机油油面是否过高,如果过高,就应把机油降至规定位置。若是机油油面在规定范围内仍在冒蓝烟,就必须认真检查缸套、活塞和活 Engine exhaust blue smoke, mainly burning oil. The main reason for burning oil is the cylinder liner, piston, piston ring wear, or oil pan oil is too high. When this happens, we must pay careful attention to inspection. First check the oil pan oil level is too high, if too high, it should be reduced to the required position of the oil. If the oil level is still within the provisions of the blue smoke, you must carefully check the cylinder liner, piston and live