Thread: A/C conversion
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wwest wwest is offline
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Join Date: Jul 2009
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Originally Posted by JV44HeinzBar View Post
Hi,
It's getting that time of year when the A/C might be needed. My 1990 uses R-12, but I'm thinking of switching it over to R-134a. I know there are conversion kits out there. Some are nothing more than new nipples and refrigerant, where as others, include a dryer canister and o-rings.

This will be my first time doing a conversion on a 964, or any other P-car, to be honest. What are your thoughts?

HB

PS. I just went through the 964 PET and I found the dryer/desiccator, but I don't know the location of it???
Many A/C specialists shops will do the conversion for under $200. My 91 & 92 LS400's, 92 Aerostar, and 88 Carrera were done that way years ago.

88 Carrera still tended to leak until I added a trinary pressure control switch, providing more rear lid condenser cooling via the cabin heater module wired into the pressure switch, and a 15 minute TDR to provide "after-run" condenser cooldown capability.
Old 06-13-2014, 09:34 AM
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