2nd Generation Specific 1986-1992 Discussion

Freon For A/c

Old 03-09-2004, 07:57 PM
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Ok i'm going to get the a/c going for the first time in 3 years. I have a leak which some day I will find. So i only have to be adding a can every 3 months. For now i was going to switch to r-134 cause is cheaper to replace but I just read up on direct replace of r-12 which is actually more efficient from r-12 and r-134.



One is called Hot shot.



http://www.icorinternational.com/hotshot/h...ot_opening.html



The other one is Enviro Safe which is actually flammable compared to Hot shot but it really need to be heated up to do so. SOmething that can be done easily witha hot turbo running along the side of the high pressure line.



http://www.btt.org/ES.html



Anyone use this stuff. I rather use this stuff if is more efficient and just as cheap as r134.





Carlos
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Old 03-09-2004, 08:07 PM
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r134 actually works ok, its not as cold as r12 though, but its almost free
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Old 03-09-2004, 08:26 PM
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I think i'll try hot shot, there is a supply store in town. I told my g/f i was going to switch to r134 and she gave me the eye.



C
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Old 03-09-2004, 08:59 PM
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haha, let us know how it works
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Old 03-09-2004, 10:11 PM
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Do yourself a favor, go ahead and use the R134a, The reason all the new cars use it, is because the industry found it to be the most acceptable for cooling ability. As far as retrofitting the system, you need to look at some of your options out there, I have done over 200 retrofits to R134a on all makes of vehicles. If you have a specific question about what needs to be done, or you are having a problem understand ing a process, ask.
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Old 03-11-2004, 12:24 PM
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Look for a product called freeze12, it will work just as good as freon on the regular systems without updating to the r134.
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Old 03-12-2004, 02:25 AM
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Originally Posted by ivkk' date='Mar 11 2004, 02:24 PM
Look for a product called freeze12, it will work just as good as freon on the regular systems without updating to the r134.
Yeah, I also read up on that but i need a license which I left back home.. Don't know if hey 'll accept my old r-12 license from back home.
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Old 03-14-2004, 11:11 AM
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I believe the R12 substitutes are called Freeze-12 or Freezone-12.



I had an interesting discussion with an HVAC guy, and he said that R134 has this nasty characteristic of generating acid when exposed to "air" (oxygen?). This is basically why old R12 stuff needs to be purged totally before refilling. Old seals and internals gets eaten up pretty quickly, and this is the cause of many failures on retrofits. This is also why R134 systems run synthetic or upgraded seals to handle possible acid contamination. Scary stuff.





-Ted
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