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怎样判断四缸发动机哪一缸在做功
更新时间: 2020-07-06 00:00:00  

判断方法:

1、在进气门弹簧座上安装另一只百分表,触针平行于气门杆,并使表针指“0”,以检测气门升程;

2、顺时针缓缓转动曲轴,上止点百分表读数最大时即为活塞上止点;

3、在活塞达到上止点前0.01毫米和越过上止点后0.01时,分别记下气门升程百分表读数和二者平均值作为排气行程上止点进气门的升高度;

4、根据进气门平均升高度找准上止点,再将气门升程百分表触及排气门弹簧座,指针对准0顺时针转动曲轴,至排气门完全落座,由百分表读出排气门落座前的高度;

关键词: 怎样 判断 发动机 做功

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