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homemade87 · 08-13-2017, 07:46 AM

Before I did anything I would take every joint apart and replace the seals( 37 years old seals ) . Pull the orifice and check to see if there is any trash ( If so system needs flushed and new dryer and most likely compressor ). This is inexpensive to replace the seals and may save you some headaches . At this point pull a vacuum .

I run 134 in my 82 and does well . If you decide to do 134 you will have to get rid of all the oil in the system( flush ) and put 134 oil in . I still use the factory condenser and does well . I made sure I sealed the area between the radiator and condenser so 100% of air travels thru the condenser . You could replace with the parallel if wanted .

I am with the others . Just refurbish the oem system . It will work well .

08-13-2017, 07:46 AM	#10
homemade87 Registered User Join Date: Apr 2010 Location: Guntersville Alabama Posts: 1,073	Re: How to update 1980 A/C Before I did anything I would take every joint apart and replace the seals( 37 years old seals ) . Pull the orifice and check to see if there is any trash ( If so system needs flushed and new dryer and most likely compressor ). This is inexpensive to replace the seals and may save you some headaches . At this point pull a vacuum . I run 134 in my 82 and does well . If you decide to do 134 you will have to get rid of all the oil in the system( flush ) and put 134 oil in . I still use the factory condenser and does well . I made sure I sealed the area between the radiator and condenser so 100% of air travels thru the condenser . You could replace with the parallel if wanted . I am with the others . Just refurbish the oem system . It will work well .