发动机拆装过程中有哪些需要注意的问题?(写出你所知道的任意五条即可)

2025-03-18 03:38:29
推荐回答(2个)
回答1:

首先,水、机油放干净,然后拆外围附件,具体分什么步骤,这就要看个人爱好了,一般的是先拆水路部分,然后拆供油部分,当然你可以看着办,想先拆什么就先拆什么!附件拆完了放好,然后开始拆发动机缸盖、配气机构、正时机构、四配套等…………基本上也没有什么的,需要注意的是:螺丝不能用风炮打,都要用专用工具卸载,还有内部零件一定不要破坏或用暴力拆卸,比如拆缸套最好用拔缸器!拆下来的零部件应该完整,单独的放好。做到这些就没什么事情了…………装的时候步骤相反,该密封的地方要用胶密封,机体上的用机体胶,外围的一般用密封胶,有些地方需要加纸垫,不能疏忽!螺丝拧紧、拧好(不能拧滑丝)连杆螺丝、旋转部分螺丝要用螺丝胶,有专用工具就用专用工具!装好后复查一遍,没问题就可以装车。

回答2:

  • 注意曲轴、连杆和活塞的各缸装配顺序不要弄乱,否则会破坏原车动平衡,产生发动机抖振;这点非常重要!

  • 注意正时标记;

  • 精密部件注意保持清洁,如活塞、缸套、气门等,柴油机还包含喷油嘴和柱塞等。

  • 电器部件拆装注意区分正负极标志,例如启动机接线柱。

  • 油料加注的数量和规格型号,不要加错。

  • 冷却液应纯净无杂质。

  • 空气滤芯应清洁后再装配。

  • 注意发动机和变速箱连接部位的标志和对正标记。

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