My existing A/C compressor is shot (leaks oil all over) so that needs to be replaced. But if I go to R134a, I understand I need new hoses (barrier hoses?). But how do I spec them if my starting point is realoem? And who makes a good compressor (reman or brand new?)
Vin is 6997510 and its a 1984 633
Your experience is appreciated.
--Ken
Upgrading my A/C from R-12 to R-134a
Moderators: GRNSHRK, ron, bfons
Upgrading my A/C from R-12 to R-134a
Sansouci
84 E24 633Csi Auto, Bronzit/PearlBeige 6997510
93 E32 740il M60 Auto, Alpenweis/Ultramarine
60 528i M30 5-speed Green/Beige (crushed)
71 240Z 4-speed White/Blue (rusty & sold)
65 396 Chevelle 4-speed, Marina Blue/Black (stolen)
84 E24 633Csi Auto, Bronzit/PearlBeige 6997510
93 E32 740il M60 Auto, Alpenweis/Ultramarine
60 528i M30 5-speed Green/Beige (crushed)
71 240Z 4-speed White/Blue (rusty & sold)
65 396 Chevelle 4-speed, Marina Blue/Black (stolen)
- wjtesquire
- Posts: 95
- Joined: Thu Sep 03, 2009 12:49 am
- Location: Charleston, SC
Conversion
Mojocoggo is right. There is a lubricant I bought on eBay that is specifically made for this type of conversion. I used when I replaced my condenser years ago and have not had any problems with it. Fill it up with the oil and r134 and you will be fine.
I had a shop troubleshoot my E24 over 10 years ago to see why the a/c wasn't blowing cold air. They swapped the fittings as mentioned above so the 134a juice could be pushed into my old system. Nothing was changed except the brass fittings, which are slighty larger than the original fittings. He filled the system with 134a, added some leak detection color fluid and that was it. It's been working ever since. Not the greatest at red lights, but on the highways nice cold air.
Good luck- !
henryc
Good luck- !
henryc
Currently in the garage:
86 635 CSi
91 850i
91 325i Cabrio
74 MGB/GT
74 Alfa Romeo Spider
08 S2000
06 Volvo V70 T5
02 MB CL600
86 635 CSi
91 850i
91 325i Cabrio
74 MGB/GT
74 Alfa Romeo Spider
08 S2000
06 Volvo V70 T5
02 MB CL600
I used a Sanden compressor on my car.
Also used R12. We did have a source for parallel flow
condensers, but that dried up.
I suggest a aftermarket parallel flow condenser, Sanden compressor,
and R134a if you are not in the sweat belt.
R12 is a better refrigerant, if you must use the stock
tube-and-fin condenser. 134 dies at stop lights with
T and F condenser.
I get acceptable AC on the hottest of days.
Never Honda AC quality air, but it make up for being
in a cool car.
Cars with rear AC do a LOT BETTER.
Also used R12. We did have a source for parallel flow
condensers, but that dried up.
I suggest a aftermarket parallel flow condenser, Sanden compressor,
and R134a if you are not in the sweat belt.
R12 is a better refrigerant, if you must use the stock
tube-and-fin condenser. 134 dies at stop lights with
T and F condenser.
I get acceptable AC on the hottest of days.
Never Honda AC quality air, but it make up for being
in a cool car.
Cars with rear AC do a LOT BETTER.