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rebuilting a/c system, a few questions about capacity 200 1991

posted by  someone claiming to be ringlee on  Wed Mar 20 08:56 CST 2002 [RELATED]

Can't help you with capacity, but suggest that you re-think the R-12 decision. The R-134 conversion kit for your car, including a new receiver-dryer (which you probably need anyway), o-rings, and ester oil, is less than $100. Get a refund on the recv/dry you bought. Instead of the stock expansion valve, buy a variable orifice valve for better low-end cooling (Rafael Riverol just did this with great success) and fill with R-134. On the fill savings alone you can pay for much of this job, and if you inject the correct quantity of R134 your cooling will not suffer at all. See the 700/900 FAQ for Dave Urban's discussion of this procedure, which is easy.

The new compressor can be used with R-134 by merely draining the oil and refilling with the Volvo ester oil. If you replace the receiver-dryer, then fill as though you replaced the entire a/c system. Otherwise, use the lesser amount for "compressor replacement only"






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