Thanks for all the info. I'm convinced now that it would not pay to fix
the evaporator. I've been studying the web page at rparts.com, I think I
could replace the evaporator and the pump(with control) . I would keep
the condenser, fan, thermostat, tubing and convert the system to
R-134a. Is this a possibility ???Do I need to flush out what's left in
the system or can I just start using r-134a. The R-12 leaked out about
12 years ago.