Youre thoughts
Thread Starter
Racer
Joined: Jan 2014
Posts: 288
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From: Proctor WV
Youre thoughts
90coupe, 86 vert, 84 beater truck . all on R 12....Been doing the math , to change just the vette's over to 134 (flush, new "o" rings,hoses, aculumator????, draw down the system....Like to keep 'em stock...I am a card holder for HVAC.....Here I come Fleabay....Going to eat hotdogs for a month paying for somebody's lucky find.....
Thread Starter
Racer
Joined: Jan 2014
Posts: 288
Likes: 10
From: Proctor WV
The two different types of oil are not compatible. Searching the old threads, I gather, To do it right, you have to flush the system, change the accumulator/ drier, meaning you have to break open the system. You can reuse the old "o" rings an hoses, but they will leak. Don't want to throw a quick fix to it, Then the compressor locks up snapping my belt an me sittin by the road. The "Freeze 12" they sell on fleabay is propane based. Don't really like the thought of that under a fiberglass hood. Thanks
Melting Slicks
Joined: Jun 1999
Posts: 2,931
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From: Ashland Alabama
The two different types of oil are not compatible. Searching the old threads, I gather, To do it right, you have to flush the system, change the accumulator/ drier, meaning you have to break open the system. You can reuse the old "o" rings an hoses, but they will leak. Don't want to throw a quick fix to it, Then the compressor locks up snapping my belt an me sittin by the road. The "Freeze 12" they sell on fleabay is propane based. Don't really like the thought of that under a fiberglass hood. Thanks
The whatever/12 alternatives normally are very flammable and quite dangerous. They do work but so does playing Russian roulette.
The 134a conversion kits work fine.
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Melting Slicks
Joined: Jun 1999
Posts: 2,931
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From: Ashland Alabama
Oh and notice I said "CONVERSION KIT" and not just put Freon in it.
The kit comes with the oil additive in the Freon to convert it over and not eat the system up. If you just put regular 134a in there it will damage the system. Once the kits been used you can use cans of regular 134a if you need to top it off later on.
The kit comes with the oil additive in the Freon to convert it over and not eat the system up. If you just put regular 134a in there it will damage the system. Once the kits been used you can use cans of regular 134a if you need to top it off later on.
Last edited by crowz; Jun 20, 2015 at 11:40 AM.
Melting Slicks
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From: Olive Branch Mississippi
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I used the kit about 2 months ago in my 91 ZR-1 works fine, follow instructions you'll be fine.
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I had my 91 converted a few years ago, I find it does not cool as well.
Burning Brakes
Joined: Jan 2007
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I switched to R134A and all I did was buy the little screw on connectors, vacuum the system and fill it up with the new refrigerant. Works fine. I talked to a A/C guy who said he's done 100's like that and anyone telling you, you can't is just splitting hairs
Race Director
Joined: Apr 2002
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From: Anaheim CA
Keep in mind that the earlier cars (like before 1988) don't have a "barrier" lining in the hoses and the R-134a will leak out much faster than a proper hose (the molecules are smaller than R-12).
Thread Starter
Racer
Joined: Jan 2014
Posts: 288
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From: Proctor WV
Thank you Cliff, Your old posts are the ones I was looking at. I'm going to bite the bullet an see if I can get a couple of small cans of R12 to get me through the summer. Then redo the system over winter on the 86 Vert. Just can't handle the heat like I used to. Hot day, sitting in garage on rocking chair, adult beverage, watching the grass grow...lol Thank you
Race Director
Joined: Apr 2002
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From: Anaheim CA
An interesting thing has happened in regard to R-12. When it was first banned a lot of people started hoarding cans of R-12. Now that most cars run R-134a or have been converted to R-134a, these guys are "stuck" with R-12 that nobody wants. The prices have come WAY down.