解放牌汽车发动机曲轴上的油封是橡胶骨架油封。我们在使用及修理中,经常发现曲轴油封漏油的现象。一旦漏油,就必须更换油封,甚至还要更换与油封摩擦的曲轴皮带轮。漏油的原因是发动机在使用时经常处于中高速旋转状态,油封不断磨损,摩擦发热,橡胶老化变质,因而使油封漏油。这种骨架油封是易损件,即使质量再好,也有一定的寿命,一般在一个大修期间都需更换多次。还有特殊情况,如曲轴前部弯曲,或曲轴皮带轮与油封 Jiefang license plate car engine crankshaft oil seal is a rubber seal. We are in use and repair, often found crankshaft seals leak phenomenon. Once the oil leaks, it is necessary to replace the oil seal, and even replace the crankshaft pulley that is rubbed with the oil seal. Oil leakage is due to the engine is often in the use of high-speed rotating state, the oil seal is constantly worn, friction heat, aging rubber deterioration, so that the oil seal leakage. This skeleton oil seal is wearing parts, even if no matter how good the quality, but also have a certain life expectancy, usually during an overhaul need to be replaced several times. There are special cases, such as crankshaft front bent, or crankshaft pulley and oil seal