A/C help - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Aunt-Jemima · 07-05-2009, 05:40 PM

Ok i know there are a lot of posts about A/C but they dont answer my questions. My dad says that the r12 refridgerant is just about non existant? If thats true how do i convert?

neonlarry · 07-05-2009, 06:06 PM

R12 is difficult to get but it can be found its just expensive.
You can get kits to convert to R134. Try some of the vendors that support this site.

Aunt-Jemima · 07-05-2009, 06:36 PM

I cant seem to find anything on here about a kit or anything. How much do you think it would cost?

neonlarry · 07-05-2009, 08:49 PM

Where did you look??
I just looked at early classic & american classic one had the POA the other the conversion kit.

caja_larga · 07-05-2009, 08:57 PM

r-12 is still available. but Most states if not all require a license to purchase it. If you are doing a new system use the r134a. If you just need a can or so to get your system to work properly take it some where to get it charged or find someone who can get it for you.

Longhorn Man · 07-05-2009, 09:56 PM

Quote:

Originally Posted by caja_larga

r-12 is still available. but Most states if not all require a license to purchase it...

Its the feds... not the states.
It has not been produced since the early 90's, and is VERY expensive.

Aunt-Jemima · 07-05-2009, 10:30 PM

What do i have to do to switch it to r134?

Longhorn Man · 07-05-2009, 10:35 PM

you can buy a kit at any parts store.
I recomend having it done by a pro since you don't have the tools to do it right.

mrein3 · 07-05-2009, 10:38 PM

Quote:

Originally Posted by Aunt-Jemima

What do i have to do to switch it to r134?

Read this:
http://www.autoacforum.com/messagevi...&threadid=7567

Flush the system.
Adjust your POA. (Link above).
Replace all the O-rings.
Install a new receiver dryer.
Evacuate the system.
Fill with R134a.

Done.

Aunt-Jemima · 07-05-2009, 10:48 PM

Thanks guys. I havent read that link yet but could i just put it all together like i would to run r12 can i just take it somewhere and they can switch it over? if so how much would that run me?

**WorkinLonghorn** · 07-05-2009, 11:21 PM

Quote:

Flush the system.
Adjust your POA. (Link above).
Replace all the O-rings.
Install a new receiver dryer.
Evacuate the system.
Fill with R134a.

I'm certainly no expert,but wouldn't you have to include in the above list;

Change the low and high side fittings or add adapters so that the 134 charging connecters fit.

Add correct amount of refrigerant oil compatible with R134.

Add High side cut-out.

07-05-2009, 05:40 PM	#1
Aunt-Jemima Registered User Join Date: Aug 2008 Location: Des Moines, IOWA Posts: 109	A/C help Ok i know there are a lot of posts about A/C but they dont answer my questions. My dad says that the r12 refridgerant is just about non existant? If thats true how do i convert? __________________ 1969 c20 350/th350(shift kit) A/C cab custom headers and exhaust 1972 c10 307/th350 (wrecked) possibly selling

07-05-2009, 06:06 PM	#2
neonlarry Registered User Join Date: Feb 2002 Location: Vacaville, CA Posts: 2,745	Re: A/C help R12 is difficult to get but it can be found its just expensive. You can get kits to convert to R134. Try some of the vendors that support this site. __________________ 70 C/10 Light Red 350/TH350, HEI, Duals w/40 series Flows, 91 seat, LED taillights 99 Pontiac S/C GTP, SLP Ram Air hood, GMPP Konis & springs 95 Neon ACR, MP PCM, AFX UDP, 3.0 CAI

07-05-2009, 06:36 PM	#3
Aunt-Jemima Registered User Join Date: Aug 2008 Location: Des Moines, IOWA Posts: 109	Re: A/C help I cant seem to find anything on here about a kit or anything. How much do you think it would cost? __________________ 1969 c20 350/th350(shift kit) A/C cab custom headers and exhaust 1972 c10 307/th350 (wrecked) possibly selling

07-05-2009, 08:49 PM	#4
neonlarry Registered User Join Date: Feb 2002 Location: Vacaville, CA Posts: 2,745	Re: A/C help Where did you look?? I just looked at early classic & american classic one had the POA the other the conversion kit. __________________ 70 C/10 Light Red 350/TH350, HEI, Duals w/40 series Flows, 91 seat, LED taillights 99 Pontiac S/C GTP, SLP Ram Air hood, GMPP Konis & springs 95 Neon ACR, MP PCM, AFX UDP, 3.0 CAI

07-05-2009, 08:57 PM	#5
caja_larga Registered User Join Date: Oct 2007 Location: Tucson, Az Posts: 172	Re: A/C help r-12 is still available. but Most states if not all require a license to purchase it. If you are doing a new system use the r134a. If you just need a can or so to get your system to work properly take it some where to get it charged or find someone who can get it for you.

07-05-2009, 10:30 PM	#7
Aunt-Jemima Registered User Join Date: Aug 2008 Location: Des Moines, IOWA Posts: 109	Re: A/C help What do i have to do to switch it to r134? __________________ 1969 c20 350/th350(shift kit) A/C cab custom headers and exhaust 1972 c10 307/th350 (wrecked) possibly selling

07-05-2009, 10:35 PM	#8
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Re: A/C help you can buy a kit at any parts store. I recomend having it done by a pro since you don't have the tools to do it right.

07-05-2009, 10:48 PM	#10
Aunt-Jemima Registered User Join Date: Aug 2008 Location: Des Moines, IOWA Posts: 109	Re: A/C help Thanks guys. I havent read that link yet but could i just put it all together like i would to run r12 can i just take it somewhere and they can switch it over? if so how much would that run me? __________________ 1969 c20 350/th350(shift kit) A/C cab custom headers and exhaust 1972 c10 307/th350 (wrecked) possibly selling



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