C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

R12 A/C

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Old May 2, 2003 | 08:07 PM
  #1  
akisana's Avatar
akisana
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From: Pearl Harbor HI
Default R12 A/C

hello everyone
I release the charge out of the A/C system in my '89 auto. Now I want to recharge it but I found out that my car uses the R12 refrigerant. The shops here will charge alot to work on it. So I'm thinking about converting to the newer R13a...any advice and suggestions will be appreciated.
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Old May 2, 2003 | 09:21 PM
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Default Re: R12 A/C (akisana)

Get R12 if you can because R134 does not cool as well. R134 was used in '94 and later vehicles. They had bigger condensors and such to accomodate for the inadequate R134 cooling ability.

Also, R134 is thinner than R12 and it will find leaks that you never knew you had with the R12.


[Modified by Siveck, 2:23 AM 5/3/2003]
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Old May 2, 2003 | 09:45 PM
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Default Re: R12 A/C (Siveck)

You can also use a product called Freeze 12. It works in either R12 or R134 systems and its temp range is supposed to be between them.
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Old May 2, 2003 | 09:54 PM
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Default Re: R12 A/C (Siveck)

Get R12 if you can because R134 does not cool as well. R134 was used in '94 and later vehicles. They had bigger condensors and such to accomodate for the inadequate R134 cooling ability.

Also, R134 is thinner than R12 and it will find leaks that you never knew you had with the R12. [Modified by Siveck, 2:23 AM 5/3/2003]
Exactly right, I have done 2- R/12 to R/134 conversion and neither car got as cold as the R-12.
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Old May 2, 2003 | 11:20 PM
  #5  
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Default Re: R12 A/C (ld85)

True it isnt as cold but were talkin a Corvette cabin here, not a suburban. As far as leaks i havent seen an issue. Because you are supposed to leak test the system anyway and leak detector is thinner than even 134. Most shops will try to talk you into it so they can charge for the retro cause theyre easy. Do it yourself and then rechages (if needed) are cheaper.
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Old May 3, 2003 | 08:06 AM
  #6  
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Default Re: R12 A/C (blk90rdstr)

I was told the old seals bearings etc for the R-12 was not compatible with the R-134 and its just a matter of time before that stuff bites the big one too.
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Old May 3, 2003 | 10:26 AM
  #7  
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Default Re: R12 A/C (akisana)

McJack's Corvette in Santa Ana, CA says $75 to recharge R-12. I assume that's indicitive of most shops. So what the big deal?
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Old May 3, 2003 | 11:51 AM
  #8  
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Default Re: R12 A/C (BIG JIM 54)

McJack's Corvette in Santa Ana, CA says $75 to recharge R-12. I assume that's indicitive of most shops. So what the big deal?
As it should be - with the # of cars using the stuff dwindling down to none; they need to get rid of it and the cost, under current EPA guidelines (you can't just release it), exceeds what they can get for putting it in a car. So if you get an outrageous quote for an R12 recharge, shop around. Some are beginning to realize there's no money left in it.
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Old May 4, 2003 | 12:50 AM
  #9  
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Default Re: R12 A/C (akisana)

Being in Hawaii I'd check around to keep R-12 since you need it year 'round.
Why did you discharge it? I have a recovery machine to keep the R-12 since you can't release it in the air.:nono: Make sure you don't have any leaks also or you'll be blowing away your money...literally. If you decide to convert it make sure you vac the system down and add the oil charge.
Is this near you? http://www.hawaiibid.com/bryceautoairconditioning/

[Modified by sumoboy, 12:51 AM 5/4/2003]


[Modified by sumoboy, 1:19 AM 5/4/2003]
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Old May 4, 2003 | 03:00 PM
  #10  
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From: Austin TX
Default Re: R12 A/C (akisana)

I have a 1986 and my ac was empty, so I replaced it with freeze 12 instead of R12. Now my ac is blowing snowballs. Go to freeze12.com It cost about $10.00 a can. I don't know if you need a license to purchase it you shouldn't it doesn't contain any CFC's. Send me an email if you need more info.
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Old May 5, 2003 | 03:11 AM
  #11  
akisana's Avatar
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From: Pearl Harbor HI
Default Re: R12 A/C (akisana)

thankx to everyone who answered my A/C. I had to replace my water pump and like alot of new home mechanics, I made the wrong decision of messing with something I shouldn't have. Anyway this is where I'm paying dearly to learn. I'll shop around in Hawaii and see what prices are out there.
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Old May 5, 2003 | 03:30 PM
  #12  
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Default Re: R12 A/C (ashabazz)

so I replaced it with freeze 12 instead of R12. Now my ac is blowing snowballs. Go to freeze12.com It cost about $10.00 a can. Send me an .
:iagree:
there is also a product called hot shot. Which is a direct replacement for r12
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