View Single Post
Old 03-17-2015, 10:04 AM   #6
engineer_gregh
Registered User
 
engineer_gregh's Avatar
 
Join Date: Feb 2012
Location: Smyrna TN
Posts: 1,153
Re: Converting factory AC to use R134a

I replaced my POA valve with the hi/lo pressure switch, flushed the system, and added the different oil required by 134a. I should have changed my condenser to a high flow as it doesn't cool as good as it should. In hind site I wished I had just had my POA re-calibrated and not gone with the switch. If you call vintage air I'm sure they could give some good advice on the necessary steps.
__________________
1971 Longbed BB Cheyenne Super
1972 Longbed SB Cheyenne Super
1972 Longbed Highlander Custom Deluxe
1975 K5 4x4 full convertible

Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=645165

Greg Smyrna TN
engineer_gregh is offline   Reply With Quote