有一台 2 10 5型柴油机 ,在中修后的 7天内 ,连续发生了 4次故障 ,造成一次气门弯曲 ,一次摇臂折断 ,两次活塞被打坏。第一次故障　该柴油机中修时 ,更换了两个新活塞、气门及气门导管 ,并更换了机油。装配时均按操作规程进行 ,各部间隙亦都正确。装机后试运转5分钟 ,没听到任 A 2 10 5 diesel engine suffered four consecutive failures in the first seven days of repair, resulting in a valve bending, a rocker breakage and two piston breaks. The first failure of the diesel engine repair, the replacement of two new piston, valve and valve guide, and replaced the oil. Assembled according to operating procedures, the gap between the various departments are also correct. After commissioning run for 5 minutes, did not hear any