legacycentral bbs

My 1992 Legacy L Wagon AWD had a great cooling A/C when I bought it 1 1/2 years ago but lately it is not cold anymore.
It doesn’t seem or sound like there is anything wrong so I was wondering if a coolant refill would do the job.
I’ve been eyeing those cans at the local Pep Boys – any suggestions/recommendations as far as brand, procedures, etc.?
I know nothing about A/C so what is the fuss about R-12, R-134a, retrofitting...?
Any help will be highly appreciated.

I've learned some stuff by watching this:

http://www.id-usa.com/video/redo/fullvideo-high.wmv

Now, let's see: are these the ports (green is low-port, red is high)...?

Green is high pressure side, Red is low pressure side.

Read over this regarding converting to 134a.
http://bbs.legacycentral.org/viewtopic. ... light=134a

Only thing different I'd suggest is using PAG oil instead of esther oil. You'll need to clean the system out well though.

R12 I think can still be bought, but it's rather expensive.

only licensed people can buy r12 at this point.

yes....but he can go to a shop to have it recharged with r12