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Old 02-28-2008, 07:58 PM
donbryce donbryce is offline
MB, love..hate..love..
 
Join Date: Apr 2003
Location: NB Canada
Posts: 1,173
Thanks to you both for the replies. There's a fair amount of controversy here on the right stuff for cleaning, and I'm certianly not gonna challenge the experts! I'll use approved A/C flush, IF I can find it locally, since aerosols/liquids can't be mailed. If not, any caveats on acetone?
I read up on 'black death', and so far, just finding powdery rust-like deposits. One port on the expansion valve was whistle-clean, even a trace of oil left, but the screen/filter port was totally gundged with brown residue. A new valve will definately be ordered.
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