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发动机是汽车的“心脏”,其构成要素复杂,且工作效率高,通常也是故障多发区。如何尽可能地减少拆卸而又迅速、准确地弄清故障部位、原因,是每个汽车修理闪员关心的问题。本文介绍几种听诊发动机故障的方法,供参考。 听诊是一种较直观的、不用仪器设备就能诊断故障的简单方法,其方式主要是通过工作人员用耳听发动机发出的异常声音,采取试验、对比等手段,辨别出故障之所在。听诊一般根据故障判断的步骤,按由简到繁、由表及里,按系统分段进行,关键的是要做到“三听”: 初听:当发动机发生故障时,都会有不同程度的征兆表现,声响变化是其一大特点。初听就是在发动机工作过程中,通过听来分辨出异响声音,从而区分开故障部位。
The engine is the “heart” of a car, its components are complex, and its work efficiency is high, and it is usually a trouble-prone area. How to minimize disassembly as quickly as possible and accurately identify the fault location, the reason is that each car repair flash crew concern. This article describes several methods of auscultation engine failure for reference. Auscultation is a more intuitive method of diagnosing malfunctions without instruments and devices. The method is mainly to detect the abnormal sounds emitted by the engine with the ears and to test, contrast and other means to identify the fault. Auscultation generally determine the steps according to the fault, according to the simple to the complicated, from the table, according to the system, the key is to be “three listening”: First heard: when the engine fails, there will be varying degrees of Indication performance, sound changes is a major feature. First heard is in the engine work process, by listening to distinguish the sound of abnormal noise, so as to distinguish the fault site.