解放牌汽车发动机曲轴轴向窜动问题设计上完全依靠曲轴止推环的配合间隙进行控制。实践证明这种结构型式缺点很多。发动机在使用过程中、后期,不仅因为止推环的磨损会造成曲轴轴向窜动,产生曲轴连杆机构一系列故障,而且为排除曲轴轴向窜动所引起的种种故障使得修理难度增加很大、工艺程序复杂。这样,只能对发动机解体,重新配装止推环,才 Jiefang license plate car engine crankshaft axial movement design completely rely on the crankshaft thrust ring with the gap to control. Practice has proved that this type of structure a lot of shortcomings. In the course of using the engine, not only the axial movement of the crankshaft is caused by the abrasion of the thrust ring, but also a series of faults of the crankshaft and connecting rod mechanism are generated, and the difficulty of repairing is increased for eliminating all kinds of faults caused by the crankshaft axial displacement Large, complex process program. In this way, only the engine disintegration, re-fitted thrust ring, only