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有一台东风载货汽车,装用的rc6105QC柴油机,在还未到走合期里程时,途中停车后,再也无法起动。在附近修理厂应急修理,发现曲轴只能倒、顺转微小曲轴转角,据此一致结论为曲轴折断,必须进厂解体检修。但笔者赶赴现场后,发现情况如下:①撬动曲轴皮带轮,或倒、顺转飞轮时无间隙感,且重力扳动时,皮带轮与飞轮同时同步转动;②拆去气门摇臂室盖,发现部分气门推杆弯曲,部分气门摇臂与气门尾杆端脱离且大距离悬空,气门间隙无限大,似配气相位紊乱所致;③旋转拆除正时齿轮室盖的正时齿轮轮系也无明见异象(因无法转动柴油
There is a Dongfeng truck, equipped with rc6105QC diesel engine, before the arrival of a full range of mileage, stop on the way, can no longer start. In the vicinity of the repair shop emergency repair and found that the crankshaft can only be down, turn slightly crankshaft rotation, which unanimously concluded crankshaft break, must be dismantled into the factory inspection. But the author rushed to the scene and found the situation is as follows: ① Leveraging the crankshaft pulley, or down, no fly when the flywheel sense of rotation, and gravity pull, the pulley and flywheel simultaneously rotate simultaneously; ② Remove the valve rocker chamber cover and found Part of the valve push rod is bent, part of the valve rocker arm and the valve tail lever end and the large distance dangling, unlimited valve clearance, the gas phase seems to be disordered; ③ rotating removal of the timing gear chamber lid timing gear train nor See the vision (because of the inability to turn diesel