天气预报 > 汽车 > 怠速排气管有轻微放炮声
怠速排气管有轻微放炮声
更新时间: 2021-05-20 03:37:07  

1、火花塞断火或火弱,用户更换火花塞即可。

2、某一冲程的可燃混合气未能点燃,排人消声后又被下一冲程的高温气体点燃。这种现象断续而无规律,发动机功率明显下降,加速时很容易熄火。这时应拆下火花塞做跳火试验,若火花塞断火或火弱,应清除积碳或更换新件。

3、四冲发动机气门间隙不对,气门烧蚀关闭不严,气门相位重叠角过大,正时齿轮安装不对引起排气门早开,从而产生入炮现象。点火过迟,使可燃混合气燃烧时间拖长,未燃烧完的可燃混合气在消声器内又产生二次燃烧,引起排气管放炮。这时,应调整点火提前角时间或更换磁电机。

关键词: 排气管 轻微 炮声

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