window motor- internal "gearbox" jam?

[Brett Dikeman]

Years ago I parked the 200q20v and didn't drive it for a good 6  
months or so.  When I fired it up- aside from the battery that gave  
out shortly thereafter (I now know of maintenance chargers!), the  
only MIA feature was the driver's side rear window.

It's never really bothered me, but this year I decided to do  
something about it.  The mystery was that it was clearly drawing  
amps- not a doorjam wiring problem, not a switch problem.  Removing  
the door panel+glass/top half, I got to the regulator, and decided to  
try and investigate without getting the cables all out of whack.  So  
question @ 1 is: how does the regulator itself come apart once you  
have the cover-plate off?  I know I completely disassembled one a  
VERY long time ago, but it was off a 5000...and either they changed  
the design, or I just haven't found the "trick" I found with one on  
the bench.

Wwith the electric motor retaining screws removed, the motor is  
visibly putting torque on the drive mechanism, as the motor case  
shuffles slightly with up/down switch actuation.  With the cover off  
the regulator, I don't see the main "spindle" moving in the  
slightest...so I'm pretty sure the problem isn't with a jam in the  
window itself.  This brings me to question #2: has anyone had a  
failure where the "gearbox" failed/jammed?

Thanks!

Brett