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In Reply to: Oliver Super 77 hydraulic leak?? posted by simmonsx5 on Sunday, October 29, 2006:
Most common problems with that style pump is either the seals are bad, the shafts are grooved at the seals, or the center plate is cracked. OR it could be the O-rings that seal the pump to the base plate. The oil is draining from your resivoir into the rear end, causing an overfull condition.