摩托车缸盖在使用维修时,发现漏气、漏油的现象很多。造成这些现象的主要原因有以下几点: a.在维修时不等机体温度降下来就拆缸盖; b.由于上次装配维修时4个螺栓拉力不均; c.制造加工时缸盖本身不平; 以上三点都会引起不同程度的漏气。在修理时,光凭借增加缸盖螺栓扭力解决不了此问题。相反,拧得过紧会容易扭断缸盖螺栓,增加修理难度。有的加装两个缸垫, Motorcycle cylinder head in the use of maintenance, found a leak, a lot of oil spills. The main reasons for these phenomena are the following: a. Maintenance of the body temperature drop down on the demolition of the cylinder head; b due to the last assembly and maintenance of four bolts uneven tension; c manufacturing process when the cylinder head itself Uneven; the above three points will cause different levels of leakage. In the repair, the light by increasing the cylinder head bolt torque can not solve this problem. Conversely, tightening too much can easily break cylinder head bolts, increasing the difficulty of repairs. Some installed two cylinder pads,