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Swapping over to R134 - how difficult ?? 700 1992

posted by  anarchyx34 on  Mon Jun 16 16:34 CST 2003
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last visit: Thu Feb 21 03:14 CST 2008
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I just recently did mine. First I properly evactuated the old R-12 (venting to the atmosphere is highly, highly illegal and environmentally irresponsible), then I dropped the compressor, drained the old oil out. Then I poured half the amount of new oil into the compressor, and the other half into a new reciever-dryer from the Volvo retrofit kit. Then I replaced all the o-rings with new yellow ones. Replaced the expansion valve with the one from the kit. Pulled a vacuum with a nice robinair pump down to 29 inches for about 25 minutes (didnt really have more time otherwise I would've done it for longer). Then I charged 2 lbs of 134a into the system including some yellow tracer dye just in case. That was about a month ago, and the other day I was sitting in traffic on a humid 85 degree day, with 36 degree air coming out of my vents. :) I just hope it works as well when it's about 100 degrees out.
--
'91 Volvo 740 wagon. A big comfy box.... and a '90 Mazda 626 GT turbo, 16psi on upgraded turbo and a bunch of other mods.






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New Swapping over to R134 - how difficult ?? [700][1992]
posted by  Andrew in AL subscriber  on Sun Jun 15 15:15 CST 2003 >


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