汽车发动机(包括各种内燃机)时轮盖漏油是发动机设计、制造及修理工作中比较难以解决的问题。时轮盖油封漏油是由于橡胶老化变硬,油封外圆收缩,使油封对轴的圆周压紧力大大减小;同时,由于皮带盘轴颈磨损起槽,曲轴支承磨损松旷等造成过大的径向振动,使橡胶的随动性不能适应,破坏了密封效果而造成了漏油。 Car engine (including a variety of internal combustion engine) when the cover leakage is the engine design, manufacture and repair work more difficult to solve the problem. When the wheel cover oil seal leakage is due to rubber aging harden, oil seal cylindrical contraction, so that the oil seal on the shaft circumference of the pressing force greatly reduced; the same time, as belt pulley wear from the groove, crankshaft bearing wear Songkuang caused Large radial vibration, rubber follow-up can not adapt to, destroyed the sealing effect and caused the oil spill.