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**kwmech** · 04-26-2022, 11:56 PM

I agree, you'll have to brush up on your terminology. When I converted my 69 to 134a, I also went with an updated cycling system and eliminated the POA valve. I also went with a newer style compressor that matches the one in my 91 Suburban, only it has the V belt.

04-26-2022, 11:56 PM	#128
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,396	Re: Converting factory AC to use R134a I agree, you'll have to brush up on your terminology. When I converted my 69 to 134a, I also went with an updated cycling system and eliminated the POA valve. I also went with a newer style compressor that matches the one in my 91 Suburban, only it has the V belt.