论文部分内容阅读
故障部位和原因响声基本特征响声变化情况听诊部位声调和特征音量逐渐增高转速由怠速突然增速备注气门间隙过大气门罩盖上部气门所在一侧清脆连续地“喋喋”声,中等其余音略带敲打弹簧般的声音加快增强明显在气门区域低转速时听诊更清晰活塞顶碰气门头气门罩盖下部气缸体上部有
Fault location and causes of noise Basic characteristics of sound changes Auscultation site tone and characteristics of the volume gradually increased Speed by the sudden increase in idle speed Remarks Valve clearance is too large Valve cover on the side of the valve where crisp and continuous “chatter” sound, the middle of the remaining sound slightly Beat the spring-like sound to speed up to enhance significantly in the valve area when the speed is low Auscultation clearer piston over the top of the valve cover valve cover the upper part of the cylinder block