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pei qi ji gou yi chang xiang sheng gu zhang zhen duan pai chu
Author(s): 
Pages: 38
Year: Issue:  12
Journal: Farm Machinery Using & Maintenance

Abstract: 一、气门敲击声响 1.现象 怠速时,在气门室处发出连续不断的有节奏的“嗒、嗒”声,响声清脆有节奏,易区分.若有多只气门敲击,则声音杂乱,且断火试验响声无变化. 2.原因 由于气门间隙调整不当或是推杆弯曲、摇臂撞头、摇臂衬套磨损、挺柱与凸轮偏磨,致使气门间隙过大. 3.诊断排除方法 (1)转速增高响声增大,节奏加快.怠速、低速时响声明显,中速以上变得模糊杂乱. (2)负荷、温度、缸位对气门响无影响,断火试验异响无变化.
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