第1个回答 2022-09-07
1.发动机冷却系统因漏水缺水过热,无法及时补充;
2.活塞环断裂划伤缸壁;
3.活塞销环脱落划伤缸壁;
4.活塞环因积碳卡在环槽内,失去密封作用;
5.活塞销脱出划伤缸壁;
6.异物进入气缸;
7.活塞与缸壁间隙过小;
8、活塞销装配过紧,造成活塞变形;
9、活塞热变形严重或烧顶熔化;
10.长时间高速或过载启动发动机。
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