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#1 |
Registered User
Join Date: Jan 2013
Location: Las Vegas,NV
Posts: 59
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R12 to RS-24
Since R12 is expensive and I live in Las Vegas where it is 115 F here already. I have the original A/C in my 1981 T/A. I put 1.5 lbs of R12 that I had. It worked fine for about a week then leaked out. I am going to find the leak and fix it but I have no more R12.
Has anyone Converted their system to R134a. I know they sell retrofit kits at the parts store but does it work on T/A systems? I was told by a mechanic friend that they don't make a conversion for T/A system. So I have been doing research on the internet and RS24 Refrigerant came up and it is replacement for R12. It says you don't have to change anything just empty the R12 completely out and add RS24. Has anyone done the RS24? |
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#2 |
Registered User
Join Date: May 2013
Location: Oregon
Posts: 328
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Re: R12 to RS-24
I wouldn't put anything besides R12 or R134a in a car. Converting to R134a should be possible. I'm pretty sure a friend of mine did it on his '81 Turbo T/A. You just have to find the leak and get some adaptors for the fittings. And make sure to use PAG oil instead of mineral oil. (lube any seals you're replacing with mineral oil) As far as quantity of R134a, I'd put a little less than how much R12 it takes, then watch the pressures and duct temperature. Add a little at a time until it is working properly.
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#3 |
Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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Get the leak fixed then vacum the system then convert to 134-a and use the stuff artic freeze it comes with a gauge and fill it up until it shows good. I did mine and it works great 45 degree's in the truck when it's 86 outside.
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1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 ![]() Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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#4 | |
Registered User
Join Date: Jan 2011
Location: Chattanooga, TN
Posts: 2,151
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Re: R12 to RS-24
Quote:
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'83 K20-TPI '73 C10 '79 C10-ex-diesel(SOLD) '07 Tahoe(Son driving) '14 Suburban-DD '71 C10-current project |
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#5 |
Registered User
Join Date: Jan 2007
Location: Topeka,KS
Posts: 778
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Re: R12 to RS-24
Get the leaks fixed and stick with R12 if possible. Especially in Las Vegas. Here in KS you can get R12 off Craigslist from individuals. With the price of R134A now you can get R12 almost as cheap. On CL however, not parts stores. Your supposed to be EPA certified to buy it, but...If you get Freeze12 (R134A) it's compatible with R12 seals and oil.
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68' C20. 283CI w/55CC 305HO heads, NP435 Close Ratio, Corp. 14 bolt FF 3.21, 75' front end swap (everything but the X-member). |
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#6 |
Registered User
Join Date: Aug 2009
Location: Simi Valley, CA
Posts: 193
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Re: R12 to RS-24
I have used hydrocarbon refrigerants for years with very good results. It is basically a mix of propane and iso-butane and yes it is flammable, but so is R12, R134, and the gasoline in your tank and fuel lines and carburetor.
Australia has been using it in cars for many years without a single incident. http://www.es-refrigerants.com/resou...FRIGERANTS.pdf It is much cheaper, doesn't hurt the environment, and is a more efficient refrigerant that the other options. RS-24 will work great. |
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#7 | |
Registered User
Join Date: Jan 2011
Location: Chattanooga, TN
Posts: 2,151
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Re: R12 to RS-24
Quote:
http://www.refrigerants.com/msds/r12.pdf http://www.nationalref.com/PDF's...ts/MSD134A.pdf You can use what you want, but I will use R12 until it is not available anymore. There is still plenty to be had. No way I use blends or flamable Butane mixes. Yes, gasoline is flamable, but is not usually squirting out under pressure in an accident.
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'83 K20-TPI '73 C10 '79 C10-ex-diesel(SOLD) '07 Tahoe(Son driving) '14 Suburban-DD '71 C10-current project |
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#8 |
Proprietor of Dale's Corner
![]() Join Date: Nov 2012
Location: Vacaville , CA
Posts: 16,129
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Re: R12 to RS-24
I've used the freeze 12 in my dually for about 5 years and still going. It was orig r12. I also use it in a couple soda vending machines that were r12 and the sodas are cold. Matter of fact i had to back off the thermostats froze sodas at first.
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"Some Days Chickens And Some Days Feathers" Dale XNGH ECV Sam Brannan 1004 R.I.P. 67ChevyRedneck R.I.P. Grumpy Old Man |
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