AC conversion

tweiss3 · 08-16-2010, 05:46 PM

All right, through the archives and threads, I found out that my R12 AC system (not running as far as I know) needs converted. Now what is involved in a r134a retro fit? Are there kits for this?

I need the AC running so i can drive this in the winter with the defrosters. From what I have been told, its missing the belt, and he believes its not charged. Can anyone help?

djmtsu · 08-17-2010, 06:37 AM

You can either take it somewhere to get converted, or go to Advance Auto Parts and get the kit to do it yourself. It isn't hard. Just a matter of new fittings on the A/C high and low side.

Of course, you would want to get the system evacuated first, and be sure it pulls a vacuum before you waste time and money doing a retrofit.

NoDOHC · 08-18-2010, 10:53 PM

You can get the Freeze 12 kits too, this work ok (I tried it) and does not require evacuation of the AC system. I did lose the compressor about 2 years after the recharge though.

I guess the big difference between the R12 and R134A is the oil.

tweiss3 · 08-19-2010, 08:51 PM

Yea, someone told me about the Freeze12 kits. I think i will have to get the kit with a few bottles and a bottle of oil.

08-16-2010, 05:46 PM	#1
tweiss3 Mazda Lover Join Date: Aug 2010 Location: Akron, Ohio Posts: 319 Rep Power: 15	AC conversion All right, through the archives and threads, I found out that my R12 AC system (not running as far as I know) needs converted. Now what is involved in a r134a retro fit? Are there kits for this? I need the AC running so i can drive this in the winter with the defrosters. From what I have been told, its missing the belt, and he believes its not charged. Can anyone help? __________________ 2004 Mazda6 V6 5-spd - still waiting on money for a motor 1991 Mazda RX7 NA 5-spd - my new DD with 145,000 miles

08-17-2010, 06:37 AM	#2
djmtsu My minds tellin' me no... Join Date: Feb 2008 Location: Murfreesboro, TN Posts: 4,043 Rep Power: 22	You can either take it somewhere to get converted, or go to Advance Auto Parts and get the kit to do it yourself. It isn't hard. Just a matter of new fittings on the A/C high and low side. Of course, you would want to get the system evacuated first, and be sure it pulls a vacuum before you waste time and money doing a retrofit. __________________ 1976 Mazda Cosmo RX-5 1976 Mazda Cosmo RX-5 2003 Toyota Tundra TRD 2015 Toyota 4Runner SR5

08-18-2010, 10:53 PM	#3
NoDOHC The quest for more torque Join Date: Sep 2008 Location: Sheboygan, Wisconsin Posts: 855 Rep Power: 17	You can get the Freeze 12 kits too, this work ok (I tried it) and does not require evacuation of the AC system. I did lose the compressor about 2 years after the recharge though. I guess the big difference between the R12 and R134A is the oil. __________________ 1986 GXL ('87 4-port NA - Haltech E8, LS2 Coils. Defined Autoworks Headers, Dual 2.5" Exhaust (Dual Superflow, dBX mufflers) 1991 Coupe (KYB AGX Shocks, Eibach lowering springs, RB exhaust, Stock and Automatic)

08-19-2010, 08:51 PM	#4
tweiss3 Mazda Lover Join Date: Aug 2010 Location: Akron, Ohio Posts: 319 Rep Power: 15	Yea, someone told me about the Freeze12 kits. I think i will have to get the kit with a few bottles and a bottle of oil. __________________ 2004 Mazda6 V6 5-spd - still waiting on money for a motor 1991 Mazda RX7 NA 5-spd - my new DD with 145,000 miles