[urq] '83 A/C, burnt wiring smell

[djdawson2 at aol.com]

Again, on my "new" '83...
 
After a few hours of chasing wire routing, and after evacuating and recharging the system (R406a, BTW), I now have an excellent performing A/C system in this '83.  However, now that the A/C is working well, I am getting the familiar early car stink of hot/burning plastic wire insulation inside the car after the A/C has been on for about a half hour.  Turn the A/C off, and the stink quickly goes away.
 
My thoughts...
 
When the A/C is on, the cooling fan on this car runs at a moderate speed... full time.  This is the only additional electrical accessory that operates when the A/C is on, except for power to the compressor clutch itself, which is a fairly low current.  My thought is that the source of the hot wires must be something linked to the cooling fan system, but as yet, have been unable to actually locate the hot wires.  My other thought is that maybe the fan itself is drawing too much current due to its age, even though it spins pretty freely by hand.
 
Any '83 gurus have any suggestions on where to start looking?
Thanks,
Dave
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