可以检查下进气管有没堵塞,最好量一下缸下汽车缸压1100到1300kpa之间是正常的,发动机缸压不足的原因有:
1、气缸润滑不足造成拉缸,导致气缸壁磨损过大;
2、缸垫密封性差或损坏,导致气缸体与缸盖之间的气密性不足
;3、缸盖与气缸体接触的两个面的平面度过大,导致气缸密封不严;
4、进气门、排气门关闭不严;
5、汽车冷却系统出现故障导致发动机散热不足。气缸的压力数据因车型而异,一般大型汽车在6至8公斤,小车在8公斤以上为正常,如低于正常压力,即可判断发动机有故障。
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