Converting AC from R12
07-02-2003, 01:55 PM
#1
Junior Member
Posts like a Ricer Type-R
Thread Starter
Join Date: Apr 2003
Location: Minnesota
Posts: 21
Likes: 0
Received 0 Likes
on
0 Posts
Converting AC from R12
What is involved in converting the AC from R12 to R13a. Is this something I can do or should I leave this to the pro'*? Expensive to do? 92 Bonneville SE L series
07-02-2003, 02:18 PM
#2
Senior Member
True Car Nut
Join Date: Sep 2002
Posts: 3,392
Likes: 0
Received 0 Likes
on
0 Posts
A controversial subject!
You will need to capture the remaining R12, repair leaks, put a vacuum on the system, add oil, and carefully add refrigerant and oil while monitoring high and low side pressures. A vent thermometer and a large external fan for the condensor also are necessary. Many people recommend changing the accumulator/drier and also the existing o-rings.
Unless you have done A/C work before, I would leave it to a good A/C shop. That'* because damages from doing it wrong are much costlier than the retrofit.
You will need to capture the remaining R12, repair leaks, put a vacuum on the system, add oil, and carefully add refrigerant and oil while monitoring high and low side pressures. A vent thermometer and a large external fan for the condensor also are necessary. Many people recommend changing the accumulator/drier and also the existing o-rings.
Unless you have done A/C work before, I would leave it to a good A/C shop. That'* because damages from doing it wrong are much costlier than the retrofit.
07-02-2003, 03:11 PM
#3
Senior Member
Posts like a Turbo
Join Date: Jul 2002
Location: Cheyenne WY
Posts: 328
Likes: 0
Received 0 Likes
on
0 Posts
I don't think it'* that expensive, $200? Depends on what you think is expensive I guess.
Does your air work now with the R-12? If it does, just keep using it til it breaks.
That whole R-12 freon thing is one of the biggest crocks foisted on humanity. It ranks right up there with the Global Warming hysteria.
Does your air work now with the R-12? If it does, just keep using it til it breaks.
That whole R-12 freon thing is one of the biggest crocks foisted on humanity. It ranks right up there with the Global Warming hysteria.
07-02-2003, 10:31 PM
#5
Senior Member
Posts like a Northstar
Join Date: Apr 2003
Location: Windsor
Posts: 510
Likes: 0
Received 0 Likes
on
0 Posts
i got every-ting you needs. Bottle says "Replaces R-12, 134a,
NO retrofiting required
Runs colder than R12
Equivalent to 510 grams
My car calls for 2.2 pounds which is 997 grams so I need about two bottles, it might be a good idea though to oil your system first (same type of can)
Each can costs 15bux Canadian, the hose thingy was 85 bux
[/u]
NO retrofiting required
Runs colder than R12
Equivalent to 510 grams
My car calls for 2.2 pounds which is 997 grams so I need about two bottles, it might be a good idea though to oil your system first (same type of can)
Each can costs 15bux Canadian, the hose thingy was 85 bux
[/u]
07-02-2003, 11:38 PM
#6
Senior Member
Posts like a 4 Banger
Join Date: Mar 2003
Location: Romeo, Michigan
Posts: 131
Likes: 0
Received 0 Likes
on
0 Posts
Can putting the r-134a in wrong cause the compressor to go bad? Because i recharged my system, and converted it, and i lasted a week, and it started working, and then would stop. finally it just stopped. I threw another can in, and it was cold and working. I shut off the car, took a shower, and then it was warm again. I got power going to the compressor, but it isnt kickin on. how come it kicked on when i threw another can in? and then it quit all of a sudden, after it was off for like 20 mins.
if it is the compressor, where can i find one on the internet, reasonably priced.
thanks,
Rob
if it is the compressor, where can i find one on the internet, reasonably priced.
thanks,
Rob
07-03-2003, 01:32 AM
#7
Senior Member
True Car Nut
Join Date: Sep 2002
Posts: 3,392
Likes: 0
Received 0 Likes
on
0 Posts
What are the high and low side pressures on your car, along with outside temperature? You have to take them with a big fan in front of the condenser, 2000 rpm, A/C on max.
You may have overcharged the system.
You may have overcharged the system.
07-03-2003, 01:39 AM
#9
Senior Member
True Car Nut
Join Date: Sep 2002
Posts: 3,392
Likes: 0
Received 0 Likes
on
0 Posts
If you overcharge it, then the compressor may try to pump liquid instead of gas, and that will destroy it. I'm not so sure that you have a compressor problem though... Best way to find out is to get some pressures.
