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#1
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Air/Con R12 Gas
I had my air con topped up today by a specialist as Subaru wont touch it. In fact they wont do transmissions either. I think they are only interested in selling new cars and basic servicing ! The Air/Con man told me that the R12 gas used was banned by the government last year and we now have a `drop-in` substitute for those of us that dont want to pay £500 for a new system. So I now have R39 gas. who cares so long as it works the same. So to my next point . The nozzle that you use to attach to the coolant reservoir is now also banned ! It must be replaced to be of the `quick release` type. The valve is a very cheap conversion which can only be sourced from America. This is because if you dont use it ,when you take off the valve after topping up ,the gas flies out everywhere. Anyone got this valve ? OR know where I can get one ?
Rich. |
#2
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I can't find a reference to R39 at US automotive refrigerant sites. Are you sure this is the type used? US regulations require a unique adapter for each type of refrigerant to help prevent mixing of different gases.
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#3
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Not only that, lee. Some nozzles and what they call "nipples" are too porous with some gasses than others. They replace them with different fittings which not only indicate what type of gas is contained in the a/c system, but also to prevent the new gas from leaking out.
I believe the refrigerant you're referring to is R134a. It is not as efficient as R12, but it gets the job done. A proper conversion (involving changing the receiver/dryer as well as o-rings) is not neccesary. There is a shop near me that does it a different way by filling the system up with retrofit oil that is apperantly compatible with both gasses and oils (apperantly, when the two oils from the two different systems mix, it causes ALOT of problems). They also change some of the o-rings to the blue (less porous) ones. I've had this done in my RX7 before, and it worked MARVELOUSLY. |
#4
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I retroed my SVX over to 134 after an O-ring cracked. all you have to do is flush the lines, condensor, and evaporator core with a refrigerant flushing device. replace the filter/dryer and drain the oil out of the compressor then refilling with new oil. took about 2.5 hours and cost around $80.
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#5
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Are you sure the evaporator was flushed. I have been told not to do that because of the expansion valve. Just curious.
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#6
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Well I don't know where canida is but when I was down from Canada we brought down a couple cans of R12a (note the a). 2 fortunate people were on the receiving end of these cans (which work in both R12 and R134a systems).
I've posted this info before but I'll attach a picture of the can again.
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