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Tool Talk Discussion Forum

Freon

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Kevin

05-09-2004 18:56:53




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I need to charge up my air conditioner. Has anyone tried any freon called freezone or HC12a? It would be easier to drop that in. Or should I convert it to 134-A? Thanks Kevin




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hay

05-10-2004 05:14:03




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 Re: Freon in reply to Kevin, 05-09-2004 18:56:53  
i just had my 1993 ford F-150 a/c system charged with R-12. this is the first time ever to have a charge on it, but like the others said, there is a leak somewhere. R-12 cost me $54 per can, but i needed only one can. my a/c tech said the R-12 is worlds better than the R-134a. also had leak test dye installed in the system to find where its leaking. that is highly recommended with the cost of R-12 freon being very expensive. looks like its just a money maker because R-12 is still made. if it was so bad for the enviornment then it would be outlawed altogether.

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jeff

05-09-2004 23:21:44




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 Re: Freon in reply to Kevin, 05-09-2004 18:56:53  
Change it over. The kit is about $60.oo and with a pump and recover tank ETC> it works pretty well. It will NOT be as cold as before. you will lose about 15% of your cooling cause 134a just AIN'T R12.the conversion is very simple and a good auto refridge guy can do it in one afternoon. What takes the most time is the pump down. DO IT RIGHT !! Jeff



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Roger

05-09-2004 21:23:50




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 Re: Freon in reply to Kevin, 05-09-2004 18:56:53  
I put Duracool in my 87 Mustang and it worked well. You have to evacuate the system first, but no oil change is necessary, nor are any modifications required.



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Bob

05-09-2004 20:01:55




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 Re: Freon in reply to Kevin, 05-09-2004 18:56:53  
I used to sell AC equipment, and would STRONGLY suggest you do not use anything other than R-134a. Most of the others are blends that either have butane or R-22. Butane goes Boom, and R-22 will eat out the seals and O-rings.

Have an AC shop recover the R-12 that is still in the system. Even if you think it is empty, there is still some in there. Of course have the leak fixed. Make the shop evacuate it for at least 1 hr, 3 is better. Then recharge it with R-134a

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Shaft seal..John,PA

05-09-2004 19:35:07




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 Re: Freon in reply to Kevin, 05-09-2004 18:56:53  
A lot of times the freon leaks from around the compressor shaft seal. Especially over the winter months, unless the compressor is operated for the defrost mode from time to time.

Evidence of leaking around the shaft will appear as oil on the underside of the hood.

Your idea of usn'n FREZON 12 is OK. Most repair stations will encourage you to switch to 134a.
Trouble is, it leaks out too through the compressor shaft seal. Seals leak because of the lack of oil to expand the seal. SO: Use the airconditioner year round as required for cool air in the summer /or/ defrost (warm-dry) air in the winter-time.

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MAC,IL

05-09-2004 19:25:04




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 Re: Freon in reply to Kevin, 05-09-2004 18:56:53  
If you have to recharge the system, you have a leak someplace. If this is not repaired you are spinning your wheels. You can convert to the 134 but this really should be done by a reliable A/C tech.



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jake

05-10-2004 09:21:40




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 Re: Re: Freon in reply to MAC,IL, 05-09-2004 19:25:04  
There is a replacement refigerant made by DuraCool, its 12a and according to the charts it is much better than 134 and R12. Lower pressure makes for less work for the comp and temp is lower than R12. I will be putting this in my converted 87 Olds.



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