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A/C conversion questions. 200 1983

posted by  B.C. on  Tue Jul 2 15:22 CST 2002
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last visit: Wed Mar 28 22:28 CST 2012
[RELATED]

Close but no cigar, yet.

>> What I was planning on was just evacuating the system, replace the fittings, orings, dryer & expansion valve. Install the oil the stop leak (precaution) & add the r134. Is that it? <<

1) Evacuate system. Gets rid of any remaining R12 in the EC way.
2) As soon at you open the system to replace things, the vacuum will suck in surrounding air. But - there seems no other way, so do it slowly.
3) Put in the new stuff, especially the O-rings, dryer and new oil.
4) Evacuate the system. Get rid of air and moisture.
5) Put in the RS134a, the amount should be 85% of the R12 amount. There should be a label on the LH fender well that tells the charge amount. Mine sez 48oz.

Good Luck,

Bob

:>)





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