我部一辆东风EQ1090型载货车,在运行过程中出现动力不足的情况,经查发现有两个不相邻的气缸工作不良,且有高速断火现象。根据该车存在的问题,我们排除了机械原因,从电器着手。首先更换了火花塞,检查白金间隙,并做跳火试验,都没有发现问题。然后调整点火正时,故障仍然存在。接着又对分电器轴与轴套进行间隙测量,虽然间隙值正常,但是在此发现了 I Dongfang EQ1090 a truck, in the process of running out of power shortage situation, the investigation found that there are two non-adjacent cylinder poor work, and there are high-speed off the fire phenomenon. According to the car’s problems, we ruled out the mechanical reasons, starting from the appliance. First replaced the spark plug, check the platinum gap, and do the flashover test, did not find the problem. Then adjust the ignition timing, the fault persists. Then the distributor shaft and sleeve clearance measurement, although the gap value is normal, but found in this