汽车在行驶中,竟发现连杆钻出缸体之外,是什么原因呢?经检查是一套小小的连杆螺栓在做怪。 维修工在修理CA6102Q型发动机时,没有按规定的扭矩拧紧连杆螺栓的螺母。由于该连杆螺栓既无开口销槽也没有对称的自锁槽,螺栓部分采用螺旋梯形槽的柔性结构,使整个螺栓有柔性作用;螺纹部分,先调质处理后滚 When the car was driving, it was discovered that the connecting rod was drilled out of the cylinder body. What was the reason? After checking, a set of small connecting rod bolts were doing strange. When the repairman repaired the CA6102Q engine, the nut of the connecting rod bolt was not tightened to the required torque. Since the connecting rod bolt has neither an opening pin nor a symmetrical self-locking groove, the bolt part adopts a flexible structure of a spiral trapezoidal groove so that the whole bolt has a flexible effect; and the thread part is subjected to quenching