天气预报 > 汽车 > 简述气门落座响的故障原因.
简述气门落座响的故障原因.
更新时间: 2021-01-13 03:43:31  

1、气门异响故障原因有:气门杆端和调整螺钉或摇臂磨损或调整不当、凸轮磨损过量、气门弹簧座脱落、气门导管积炭过多。气门的作用是专门负责向发动机内输入空气并排出燃烧后的废气。从发动机结构上,分为进气门和排气门。进气门的作用是将空气吸入发动机内,与燃料混合燃烧;排气门的作用是将燃烧后的废气排出并散热。

2、发动机怠速运转时发出连续不断的、有节奏的“嗒、嗒、嗒”(在气门脚处)或啪、啪、啪”(在气门座处)的金属敲击声;转速增高时响声亦随之增高,温度变化和单缸断火时响声不减弱;若有数只气门响,则声音显得杂乱。气门脚响和气门落座响统称为气门响。

关键词: 简述 气门 落座 故障 原因

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