I'm about to do the same, but I need some more clarification: 1: Where is the expansion valve, and where do I purchase one? I didn't see it on our friendly internet vendors' sites. 2: I can see one of the ports on the line near the compressor. Where is the other one? 3: Shouldn't you replace the ports before you evacuate the system? :-) 4: I have never heard of flushing with non-chlorinated brake cleaner. Do you just spray it in each section of plumbing, followed by the air? Thanks, Michael Townsend ---------- > From: Mark & Laura Magee <marklaura@HOUSTON.RR.COM> > To: vanagon@GERRY.VANAGON.COM > Subject: Re: AC Conversion: R12 to R134A > Date: Monday, July 23, 2001 5:10 PM > > Remove your compressor, drain mineral oil, flush compressor and lines > w/non clorinated brake cleaner using an air compressor and blow tip to > remove old oil/junk. > Fill compressor w/PAG oil. > Install new expansion valve. > Install new filter dryer. > Close all lines. > Vac system. > Install new R 134a ports. > Charge to around 40 PSI on low side: 80% of R-12 charge. Sight glass may > still show bubbles. > Cold air blows and your done. |
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