A/C question
Thread Starter
Pro
Joined: Nov 2012
Posts: 672
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From: Chesapeake Virginia
A/C question
hey guys, I know this has been discussed a million times over the years and I HAVE SEARCHED and read till my head is ready to explode but all the info. is either dated or not relevant to my situation.
here's the deal, doing a body off resto-mod on my '81, during it I'm replacing the entire A/c system. the only part that will be re-used is the small liquid line which will be cleaned out really well.
I already have the new R-4 compressor, hose set, dryer, evaporator, condensor and orifice tube.
question #1: which refrigerant should I go with, I don't think R-12 is a viable option due to expense. I've read about "hot shot" but haven't done much research on it.
question #2: do I need to change the o-rings if I go with the 134A? the ones I have now came on the replacement parts that I'm sure were designed for R-12.
question #3: can I use the same orifice tube that was designed for R-12 or do I need to get something different.
I've already removed and resealed the housings (engine bay and interior) with all new gaskets/sealants.
thanks in advance.
here's the deal, doing a body off resto-mod on my '81, during it I'm replacing the entire A/c system. the only part that will be re-used is the small liquid line which will be cleaned out really well.
I already have the new R-4 compressor, hose set, dryer, evaporator, condensor and orifice tube.
question #1: which refrigerant should I go with, I don't think R-12 is a viable option due to expense. I've read about "hot shot" but haven't done much research on it.
question #2: do I need to change the o-rings if I go with the 134A? the ones I have now came on the replacement parts that I'm sure were designed for R-12.
question #3: can I use the same orifice tube that was designed for R-12 or do I need to get something different.
I've already removed and resealed the housings (engine bay and interior) with all new gaskets/sealants.
thanks in advance.
Race Director
Joined: Sep 2001
Posts: 10,560
Likes: 439
From: Wellington, FL
St. Jude Donor '11 thru '25
I would suggest staying with R12. It's not that much more expensive than R134a and will generally do a better cooling job. You can purchase it on Ebay for $20 to $25 per can.
