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[Cornbinder89]

Yeah, that is what it should be for R12. Your question is a valid one, just no way to answer it. That is another problem with these "so called"...

[Cornbinder89]

As I understand it, it is a mixture of 134a and R290 (propane) R 134a is around 26 @32 deg F and R290 54 psi @ 32. SO what to you set it at? I have...

[Cornbinder89]

30 oz sounds like a lot. I thought I read somewhere that like 134a when you change to 152a from R12 it takes less by weight. I can't find where I saw...

[Cornbinder89]

That is the beauty of devices that control the evaporator temp by controlling the pressure, the refrigerant will not get colder than the boiling temp...

[Cornbinder89]

Yep, get the little adaptor for the smaller R12 fitting, it converts to a std 1/4" flare, remove the valve core on the 14" end and install a...

[Cornbinder89]

Shortcuts, Likely didn't have the fitting i stock, so left it off. Only cars used a "funny" high side fitting, everything else (Heavy truck/...

[Cornbinder89]

No way I know of to install a fitting on a charged system. You could use an R12 hose attached to your gauges to read the high side, but unless you have...