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I am going to remove the clip, and see if there is a simple O-ring or if it is some complex gasket. Most likely, I will take it back to the parts store and trade it in for a core and pay a couple hundred bucks for a new compressor. I figure I will also get some AC flush, and flush the condenser while in the mode and the system is open, just because it can't hurt. The orifice tube had some debris on it that should not be there. Maybe the compressor is dying and about the shred, so might as well replace it.
I wish there was a simple drop in replacement for the R4 compressor. It was used in all GM cars of the 80s and into the 90s, and in Volvos, Mercedes, and lots of vehicles. It is always a bit noisy, but when it is all it working is will sure make some cold air.
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Glen
49 Year member of the Porsche Club of America
1985 911 Carrera; 2017 Macan
1986 El Camino with Fuel Injected 350 Crate Engine
My Motto: I will never be too old to have a happy childhood!
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