Quote Originally Posted by nhengineer View Post
Think about it Tony, the only way oil can get to the o-ring is to leak past the ram cup. The oil is supposed to only be on the high pressure side of the ram cup. The o-ring is just a dirt & debris wiper. It does nothing to seal the oil. If there is oil on the low pressure side of the cup there's something seriously wrong with it.
No, no, no. The jack is upsidedown, The whole thing is full of oil.