You can check the fan by jumping it directly to the battery. On my 82, the fan is activated only by a heat activated switch on the dryer (what you are calling sight bottle).

You need to check the high and low side pressures with the system running and not running. It is possible that the freon leaked out again, or there may be a blockage either in the dryer or the expansion valve.

My car was converted to 134 before I bought it. It has the POS GM R-4 compressor on it. The front seal was leaking profusely.

__________________
RRGrassi


70's Southern Pacific #5608 Fairmont A-4 MOW car

13 VW JSW 2.0 TDI 193K, Tuned with DPF and EGR Delete.

99 W210 E300 Turbo Diesel, chipped, DPF/Converter Delete. Still needs EGR Delete, 232K

90 Dodge D250 5.9 Cummins/5 speed. 400K

Gone and still missed...1982 w123 300D, 1991 w124 300D