1换装汽缸套活塞时不选配在换装汽缸套活塞时,有的机手认为新的汽缸套和活塞都是标准的,装上去就可以了。实际上,汽缸套与活塞的尺寸都有一定的公差范围。如把最大尺寸的汽缸套配上最小尺寸的活塞,会使配合间隙过大,造成压缩无力,启动困难。因此,换装时必须注意标准活塞尺寸分组代号与标准汽缸套尺寸分组代号是否相同。2在排气管出现水滴排出现象时仍强行启动发动机 1 Dress cylinder liner piston is not matched In the cylinder liner piston, some of the hands that the new cylinder liner and piston are standard, installed on it. In fact, the cylinder liner and piston size have a certain tolerance range. If the maximum size of the cylinder liner with the smallest size of the piston, will make the gap is too large, resulting in compression weakness, difficult to start. Therefore, the dress must pay attention to the standard piston size group code and standard cylinder liner group code is the same. 2 In the exhaust pipe drops still appear forced to start the engine