小型拖拉机上的油封常有甩油现象,常见原因及一般防治措施如下。 1.曲轴油封漏油原因 1)缸套、活塞与活塞环配合间隙超限,柴油机下排气增大,曲轴箱内气体压力升高,通气管来不及排出的高压气体便连同油雾从油封处飞溅出来。 (2)曲轴主轴承间隙超限,或起动轴衬套磨损严重,两轴在轴瓦或衬套里下偏,压开了油封唇口而漏机油。 Oil traps on small tractor often throw oil phenomenon, the common causes and general prevention and treatment are as follows. 1 crankshaft oil seal leakage reasons 1) cylinder liner, piston and piston ring with the gap over the limit, under the diesel exhaust increases, the crankcase gas pressure increases, the vent pipe too late to discharge the high-pressure gas will be accompanied by oil mist from the oil seal Splash out (2) Crankshaft main bearing clearance is overrun, or the starting shaft bushing is worn seriously, the two shafts deviate in the bearing bush or bushing and press the oil seal lip to leak oil.