Anyone know of proper adapter fittings?
R-1234yf to R-134a fitting adapter
- Thread starter RooflessVW
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Why does that seem like a bad idea?
Are there any applications that authorize going back to R134a?
Are there any applications that authorize going back to R134a?
Who's authority would I need?
You can probably find them on eBay 
The evaporator and system capacity are tuned for 1234yf. How do you plan on compensating?
Rough guess is probably close enough lol
Fill to 90% cap and check performance/pressures.
My 735i was filled with Coleman's.
Easily purchased cheap on Amazon. https://www.amazon.com/Air-conditio...232019&sprefix=1234yf+to+134A,aps,221&sr=8-14
I'm really looking for something a little less Mickey Mouse, hence the word "proper" in the thread title.
There's also no high side adapter there. I am capable of a cursory Google.
I started to get adapters but just went and bought new manifold gauges. I have done a few 1234yf on later GM cars (2013-2015 range) and each time went back to R134a because the price of the new freon was astronomical. These era GM vehicles had NO system change from R134a to 1234yf...compensated a little for freon volumn that's all.
What is it you're trying to do? Use your R134 gauges on a R1234 system. I've bought the parts for that myself. Or, trying to convert an R1234 system to use R134 (which people here seem to think you are doing) which would be ludicrous.
Why would it be "ludicrous?'
Maybe because it won't cool worth a darn? Those systems have an internal heat exchanger so it's transferring heat between the cabin and under hood components. Even a slight difference in specifications will reduce cooling output significantly.
I know quite a few guys did this without any issues whatsoever.
134 and 1234 are interchangeable. 134 will work in a 1234 system.
I think you should brush up on your AC knowledge.
R-134a will work just fine in a R-1234yf system.
Next time I get a car with bad 1234, I 'll have to try that.
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