Finally got the '85 300D blowing cold air on 134a. The lowest it will blow is 52 dF as indicated by a thermometer stuck in one of the center vents (I can tell when I accelerate too fast - it slides out ).

Anyway, upon completion of the replacement of one of the a/c hoses (thanks Fastlane/Partshop.com) I took it to the guy that evacuates and charges it - good person and excellent cars "a/c and electronics" independent - anyway, he allowed it to evacuate at a minimum 3 hours and replaced the schrader valve on the high pressure side, all for $50 and I was pleased to get 52 dF "cold" air.

Jim
'85 300D
'95 E320
'97 CRV