Blows Seal out around crankshaft
( Asotin Washington usa)
I purchased this compressor used so I have no past history about it, the concern I am having is after the compressor runs for a short time it will blow the crankshaft seal blows out of the crankcase housing!
I reinstalled it and it repeatedly will blow the seal out.
It's pretty obvious the concern is caused by crankcase pressure.
My question is how is this pump suppose to vent the normal pressures that are present anytime you have rotating parts ?
I do question if it has a ring problem but it does seems to build air pressure in the tank rapidly, and I cannot see anywhere the crankcase is suppose to vent on this pump !
Any suggestion would be great.
The compressor pump is a Curtis D-96