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R-134a Conversions facts and fiction 700 86

posted by  someone claiming to be Tim Messenger on  Wed Apr 18 15:12 CST 2001 [RELATED]



I've been looking into retrofitting my 740 to R 134a, I spoke with a local shop who as converted a few of a friends Mercedes and claims to have converted about 100 other cars, this was his advice: Don't flush the compressor when I've flushed compressors they've seized up so I just leave them alone. I don't replace o-rings unless I disturbed a fitting. Have a look at this article from EPA regarding 134a conversions, thier guidelines seem to match what he is saying. If your system is flat or leaking you may have corrosion around o-rings or other problems which would require attention but if not then changing the receiver, pulling the system down and re-charging with 134a may be all that's required.

Written by EPA's Stratospheric Protection Division

Last updated on January 8, 1998

http://www.epa.gov/ozone/title6/609/retrguid.html

Tim





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