汽车发动机没机油会导致烧瓦抱轴,还导致拉缸吗?缺防冻液为什么会拉缸不抱轴?拉缸后又会导致缸压不够?

2025-04-06 15:04:23
推荐回答(3个)
回答1:

发动机机油是汽车发动机的“血液”,主要起到润滑,清洁的作用,如果没有或机油不足就会导致发动机润滑不良,并使发动机温度迅速升高造成拉缸,严重的还会发生烧瓦抱轴。另外对于涡轮增压发动机,机油还有给涡轮增压器润滑和冷却的作用。对于防冻液的作用是确保发动机工作在90度左右的工况温度,使发动机能够发挥其最佳性能,严重缺少防冻液的话,就不能保证发动机工作在这一工况温度,也会使发动机的工作温度升高,严重的话同样会产生拉缸、及抱缸现象发生。

回答2:

所谓的拉缸也可以称为粘缸、拉缸的主要原因在于水温过高、造成活塞得不到冷却、导致活塞融化对缸套进行拉伤、有时候机油喷油嘴堵塞也可以导致拉缸、拉缸后主要表现的现象为、车无力、冒蓝烟、容易熄火、拉缸严重时导致车子打不着火、或直接打不动
烧瓦也可以称为抱轴、或砸瓦、烧瓦的主要原因是应为机油不够、或者就是机油压力过低、或油道堵塞、导致曲轴得不到所要的润滑而把曲轴严重磨损、出现烧瓦后发动机会出现异响、为达达的声音、如果出现烧瓦现象请立刻熄火、如果不熄火可能会导致连杆脱落把机体打破、
根据你的情况可以检查下油品是不是含水太高,检查油路油滤等

回答3:

一般发动机除了用机油润滑,还需要水冷降温,没有水发动机温度过高,润滑油就起不到润滑的作用。

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