Quote:
Originally Posted by stephenc1984
I have charged the system with R12 compatible oil one time in the last two charges. Thank you Rollguy for the offer. I don't mind taking and paying for an A/C guy to fix it. What should the ballpark cost be to fix leak and convert to 134? Thanks!
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If it were mine, I wouldn't convert to 134a without going to a Parallel Flow condenser and fan upgrade, as well as replacing all the hoses. The 134a molecules are smaller than R12, so leaking hoses with R12 will surely leak more with 134a. And again if it were mine, I would do a Sanden upgrade as well. I feel the R4 is not worth the investment in time or $. Even if you changed the hoses and Orings, flushed the evaporator and replaced the condenser, the existing R4 would probably not last much longer. Replacing the R4 with a new or reman is also akin to a crap shoot. You won't know if you get a good one or not until you have invested time and $ into the system. At least that was my experience years ago. That is why I developed the Sanden retrofit. I got so fed up with the R4 and it's inherent design flaws (no oil sump, marginal sealing washer design etc).........Rich