Hi, I also have a '92 245 that I looking to recharge the AC freon, there is 2 port on and near the accumulator, 1 is a R12 port that is on the back of the accumulator and the other port looks kind of like a R134 port on the U-pipe. Can someone please confirm if the low side (charging) port is the one on the pipe or on the accumulator? Picture of my accumulator below.





Thanks!

 

has this AC been evacuated and leakdown tested?

92's were R12, who knows what level of conversion yours has? I removed most of the AC hardware from my 87 as it was toast, so I'm not of any help. I have a shop evacuate and recharge my working systems, which are R134a.