推荐回答（2个）
不懂的话，最好不要自己调节。
465或462发动机，现在电喷车没有分电器，哪个缸工作，不是维修工的话不好判断。
1 下八字，拆下气门室盖，根据凸轮轴两个凸缘直向发动机下方呈八字型，这时就是该缸工作。当一缸工作时可调节进排间隙，2缸的进气门，3缸的排气门。当4缸工作时，可调节3缸的进气门和2缸的排气门。
2 根据飞轮记号（变速箱前方小口），找出1缸或4缸工作。
3 拆下1缸或4缸火花塞，根据活塞到缸的上止点，来判断1缸或4缸工作。
调节气门间隙，主要找到1缸和4缸工作时间(活塞上止点）就行。
冷车进气门间隙在0.14mm, 排气门间隙在0.12mm。热车进气门在0.25mm，排气门在0.22mm左右，本人自己的经验，不敢说绝对准确，仅供参考。
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