On my 92 the ac has been running a little warm and im getting bubbles in the site glass. It has never been charged and is still r12. I have the gages, vacuum pump, scale and around 20 pounds of 134a and I also have a couple of cans of r12. I feel just a squirt of r12 would do the trick but have never worked with r12 and none of my fittings are set up for the r12.If I did the r12 I would need to purchase a can tap and hose but currently could not connect gages without figuring out some adapters. It seems to me the system is sound its just leaked a little in 24 years. Im in Seattle and the only option I have found is converting to 134a.
Thoughts and advise guys?
Rod