134A REPLACEMENT

[nawlins-tim]

i KNOW THAT not as many guys have a/c that do not have a/c, but I am gonna try to get mine up and running. I have all the hardware, hoses, compressor all ready . Now when it came to fill my system The (ancient) r12 re-fill hose that I have doesn't fit my low side port. Luckilly I do have a case of r12 from years ago. I can remember useing 20 years ago. But I can't figure what is wrong here.
It would be realitive easy to switch over to 134a but I hear it is no comparison to r12. What is your take. And any hints on my delima with findind the correct r12 hose would be helpfull. thanks!!!

 

[megaladon6]

well, i have to say sell the R-12, it's worth a friggin butload of money! 10yrs ago a 20lb cylinder way worth over $1000
R134 is a good freon and works just as well as 12 if installed correctly. you have to make sure to vacuum it out to 32in. that's what people always ignore.
sorry i couldn't answer the actual question.

 

[Mudweizer]

http://www.apairinc.com/iView.asp?Cat=A ... 20Adapters

Scroll down, should have a 1/4 male to 3/16 female adapter. I'm not 100% sure if that is what you need, but there are some choices there.

 

[nawlins-tim]

Yea my charging hose is LARGER than the low side port. Isn't the factory low side a 1/4 male flare?

 

[Bonnewagon]

Isn't R-12 a screw on fitting? Someone may have already put a 134a adapter on your system. I hope they did the conversion correctly, some guys just charge it up and call it a day. I converted to this stuff http://autorefrigerants.com/co00033.htm and I am very pleased with the results. As a plus, it is compatible with the original mineral oil so I just vacuumed it down and filled it up, took only 3 cans to do the trick. I get 40* at the outlets on a 90* day. The site has every kind of filler adapter you may need and several types of refrigerants, I chose the ES-12. As stated, you can sell the R-12 to someone who absolutely needs it and make a profit.

 

[nawlins-tim]

Some say that they wouldn't use the Hydro-carbon mix refrigerant. But after looking at the price I think I might give it a try. Right now if I could find the Right hose I would put in a couple cans of the r12 to see how well it does.
And I thought that someone could have changed the low side port size to something else. But it's still the 1/4 flare that is supposed to be there.
OH YEAH, AND HOW much r12 will it take to fill a system. I know some stuff takes less some more. But to start how much r12 will fit in a g-body system. anyone know???????????

 

[joe_padavano]

It would be realitive easy to switch over to 134a but I hear it is no comparison to r12. What is your take.

I have personally converted several of my cars over to R-134, including a couple of 1980s GMs, and cooling is no problem. The A/C works great. I did nothing special, though in one case the compressor was bad so I had to flush the system and I replaced all the O-rings while I had it apart. New compressor, new oil, vacuum, and new freon. Works great. "They" seem to be looking at the theoretical cooling capacity of R12 vs R134, but from a practical standpoint it works fine.

 

[86Olds442]

i KNOW THAT not as many guys have a/c that do not have a/c, but I am gonna try to get mine up and running. I have all the hardware, hoses, compressor all ready . Now when it came to fill my system The (ancient) r12 re-fill hose that I have doesn't fit my low side port. Luckilly I do have a case of r12 from years ago. I can remember useing 20 years ago. But I can't figure what is wrong here.
It would be realitive easy to switch over to 134a but I hear it is no comparison to r12. What is your take. And any hints on my delima with findind the correct r12 hose would be helpfull. thanks!!!

If you need an old R12 refill hose, I have one I can give you. I converted my system over to R134A and am happy with it. Just let me know if you want it and I'll dig it out.