I had an ac problem and fixed the leaking seal ! Had friend who is a mechanic stop by to recharge the system ! His gauges would not connect to one of the fittings ! Can’t remember if it was low or high side ? Is there an adapter I can get to adapt that fitting from r12 to r134 gauges ? Or do I need to get r12 gauges ?
Dan

 

yes , there is a retro fit kit for R134 .. all Orings in the system are different as well

 

I meant to keep the r12 I have in the system ! I’m wondering if there’s an adapter that screws on the existing fitting on the 22re so that I can use the 134 gauges ?

 

It's usually the other way around. Gauges like these: https://www.harborfreight.com/ac-r13...set-62707.html come with R12-style screw-on connectors, that are then screwed onto the included quick-release style R134a connectors. If your gauges have the R134a connectors permanently crimped on, you might have to get/borrow an "old" set of gauges.

Having said all that, I will point out that trying to hang onto an R12 system is really difficult, and only going to get harder. You need a section 609 license just to buy R12, and since you can't mix refrigerants in equipment, finding a shop with an R12 R-R-R machine will get to be impossible. Just bite the bullet now and convert to R134a while you have no refrigerant that you have to worry about recovering. It will make your life easier for many years.

 

Yes! Totally agree on the upgrade. I had a buddy who searched for months for black market r12. It was hilarious but i wouldnt want to do it myself.

 

I replaced all the o-rings in my 87 4Runner a/c system shortly after acquiring it. It really isn't that bad to do. The evaporator was pretty easy to remove from under the dash, and once I opened it up I was glad I did. It was half full of leaves and debris.
Just make sure you get the correct oil for the freon you decide to use.