Help! RV2 compressor blew new shaft seal

The crankcase and seal should be "at suction" pressure. That is, too much refrigerant or oil either one should not be an issue


The other thing is, with today's "poor parts" it may well be that some Chineseoated "engineer" came up with a 'less expensive' replacement seal design. I'm still betting on a "careless install." Who knows. Maybe "they" didn't even replace the seal