View Full Version : airconditioning help
07-06-2007, 05:03 PM
have 83 supra, can I use a compressor off newer toyota and remount with new brackets and new lines to accomadate new location? old compressor will not hold freon. also want to go to 134a, can i use old condensor? thanks.
07-06-2007, 05:10 PM
Well, have you traced the leak to the compressor? is it leaking from the housing or from the lines?, did you test to see if the compressor clutch and internals are ok? If the compressor is ok, you can use it with 134a, you should change the oil in the system and probably flush the lines with cleaner. But first i would try and find where the leak is coming from if its not the compressor. Most likely locations to check for leaks are the condensor, evaporator and then where any connection is. good luck.
you could also just buy a replacement compressor and clutch for the supra.
07-06-2007, 05:38 PM
leaking from nose seals on the compressor.
07-06-2007, 08:03 PM
Jim King did a whole lot of research on this when he put together the group buy on the R-134a conversion kit. I think the "kit" was a one-shot deal and no longer available, but you can certainly learn from reading up on those threads. I'd suggest calling CC Classics Air Conditioning in Fort Worth for parts as they specialize in piecing together air conditioning systems for street rods and customs from scratch. Or you can do what most of us do, just order Envirosafe HC-12a replacement refrigerant, its cheap, and top it off as needed.
07-06-2007, 11:01 PM
MrTechNic has a complete kit New in the Box for sale.
( will not fit his new 1J engine)
Envirosafe HC-12a replacement refrigerant, its cheap, and top it off as needed.
And from where do you order that, please ?
07-07-2007, 01:12 AM
HC-12a is the same as ES-12a. In the USA you can get it here (and they have a link for getting it in Canada):
Lots of discussion:
and more if you search
This way you can stick with a stock Nippondenso 10P15C compressor - or can use with any other commpressor. If you put R-134a into a stock system it usually lasts a year, then the compressor has a failure.
This stuff is safer than R-134a (health, environment, and flash point (explosion)) but is not approved nationwide, only on a state-by-state basis. I know it is OKed in Idaho and Texas, but if you are doing it yourself, not a problem. It is also much more efficient than R-134a.
I highly recommend putting in a dye charge to find your leaks.
Regardless of what you recharge the system with, the receiver/dryer (the canister in front of the radiator - $25) should be replaced if it is original (metal with a sight glass). The condenser (radiator/cooler looking thing) should be OK unless it has a leak, but the likely leaks are the connections (O-rings) or other items in the links.
If you replace the compressor you might as well get one with the clutch (vice w/o) as a 20 year old clutch is probably about to go too, and you probably can't replace the clutch without pulling the compressor.
07-07-2007, 01:33 AM
u know i found my compressor for like 120 bux on ebay, i believe i searched using the part number or something, i dont really remember, its still kicking and blowing cold 2 years later. it came with the clutch and everything
compressor on ebay (http://cgi.ebay.com/ebaymotors/TOYOTA-PICKUP-4RUNNER-VAN-SUPRA-10P15C-A-C-COMPRESSOR_W0QQcmdZViewItemQQcategoryZ33543QQihZ01 5QQitemZ250139112012QQrdZ1QQsspagenameZWD1V)
07-07-2007, 01:19 PM
More details that you may want to know are here.
MK2 AC FAQ (http://forums.celicasupra.com/showthread.php?p=365961)
The best advice is to try and diagnose any problems as cheaply as possible.
AC systems can be a money pit.
I do have a mix of remaining parts from the R134a conversion kit.
Just need to inventory what I have (when I have time).
It would definitely be for someone who is reasonable good at minor fabrication work.
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