最近,本刊收到山东一汽车修理厂读者王琨的来信,反映一辆当地汽车厂组装的双座客货两用车,492Q发动机在一年中破裂10余个飞轮壳,此发动机变速器等各部位均连接牢固,并校验过曲轴及传动轴均无异常情况,此故障一直未排除,因此写信向本编辑部询问故障原因。因该信写得较为简单,且未亲眼所见故障现象,我们现请有关专家就可能原因进行分析。 Recently, this journal received a letter from Wang Kun, a reader at a Shandong auto repair shop, reflecting a two-seater passenger and two-wheeled vehicle assembled by a local automobile factory. The 492Q engine broke more than 10 flywheel shells in a year and the engine transmission, etc. All parts are connected firmly, and the crankshaft and drive shaft have been verified no abnormalities, the failure has not been ruled out, so write to the editorial department asked the cause of the malfunction. Because the letter is relatively simple to write, and did not witnessed the phenomenon of failure, we now ask experts to analyze the possible causes.