在汽车修理和汽车维护保养中,经常发现汽车零部件上的一些小孔不为驾修人员所重视,这些小孔主要有:蓄电池加液盖上的小孔、水泵壳体上的小孔、汽油泵泵体下部的小孔、变速器盖上的小孔、万向节十字轴上的小孔、后桥壳上的小孔等。这些小孔有三个主要的弱点:一是不为人们所注意,它们大都在一些不明显的位置,隐蔽到要让新驾驶员花半天工夫才能找到它们的具 In auto repair and vehicle maintenance, it is often found that some of the small holes in the car parts are not valued by the driver. The small holes mainly include the small hole in the battery lid, the small hole in the pump casing, The lower part of the pump body of the pump, the small hole on the cover of the transmission, the small hole on the universal joint cross shaft, the small hole on the rear axle housing, and the like. These holes have three major weaknesses: First, people do not pay attention, most of them in some obvious location, hidden to let new drivers spend a long time to find them