Larry - thanks for the additional info you provided. Every little bit helps us all.

Your reply about flushing earlier this morning got me pointed to acsource.com. Flushing guns, flush solvent, instructional manual($20), etc. That was a big help.

Thanks again for your contributions. Come hell or high water, I'm gonna fix this old R-12 system.

Just paid someone to do it and guess what.......

Regards.