1960s Drivers window motor replacement

[MobAudio]

I have a '66 Sedan DeVille that seems to have a bad drivers window motor.  I have checked the switch and have jumped power to the motor just in case and still nothing. There are butt connectors in the wires leading to the motor that make me think it has been replaced before (I did also try jumping the motor after the connectors also).  The issue that I have is that the window is stuck in the up position.  I have read that there is a way to remove the motor without removing the whole regulator assembly but three holes need to be drilled.  Does anyone have the locations for those holes?  I can see what looks like 2 of the bolts holding the motor on but not the third.

I have heard mention of there being a diagram of locations on the inner door skin that can be drilled out to access the bolts so that you don't have to remove the whole track and glass.  Does anyone know where these locations are?

["Cadillac Kid" Greg Surfas 15364]

Diagrams are in the Fischer body manual
Greg Surfas

[MobAudio]

This one?
https://www.rockauto.com/en/moreinfo.php?pk=10594048&cc=1320220&pt=10335&jsn=857&_nck=Ekt6BqBF1pwlXdx0gYlm1esw98pF26vehMm%2FGG3C%2Fl2QOXSJubi7WSpUmUSdg3OxWOs2f5z9h422EONy36O0PjCuaadDqI1r86y%2FvJ1lBqxeBNhI9mMX8H1x0fHFzmF%2Bemc5SoFjBM4YwvQ2tLgA0bBeGftY6hwHyLHQiRSVBbt6CTUiyOsVm6ULZDb3KHE%2FdcHxolESy83EuTcu3RPj%2BKAZkCczreVjI1vIV84ByABbbx8HE0UClxTy%2BbEKPKNQxG3fqPiTj7qw4Z0v2zjTZ7yLIik%2FXbgvnHyo195XZ8QKYQnHTMTiS5qRJ8VVSHavGD0HWb5A4ZNlZi6zo3RGpV29Z%2BuT%2BKXcrl%2Ft8t7iJ8MIL%2BEpuNCEv1E7WMoTLKjV

[MobAudio]

I got the book and still don't see anything in there about a location to drill holes to remove the window motor without removing the whole assembly.  Any guidance anyone has would be greatly appreciated.

[V63]

They instruct you to drill hole in the regulator arm that is under spring tension to FIX it (bolt it) in position.
If you do not do this ...

removing the motor will release the tension and regulator arm at significant force.

[MobAudio]

I got the window motor out it was so simple.  Use the new motor to layout holes using a few pieces of tape, center punch the inner door skin and use a hole saw to drill 3 holes, then remove the motor.  Once the motor is out it is slightly hard to line the new motor up again, but certainly doable.  I got mine in with near 0 issues.  There is no spring on the regulator at all (I'm not to sure what everyone is talking about).  Mind you my window was stuck all the way up, but either way I saw no spring anywhere.

[Cadman-iac]

  I have not ever seen an older vehicle with the cross-arm design regulator NOT use a spring. The purpose of the spring is to assist the motor in raising the window, because gravity assists the motor in lowering it. Without the spring your motor will not last long and it will probably be very slow in raising the window.
Maybe you just missed the spring? It should be very close to the motor right where the regulator arm pivots on the mounting plate. Also, it's on the opposite side of the mounting plate than the motor is. Should be almost sandwiched between the regulator and the inner door panel.

Rick

[MobAudio]

Nope nothing, once I removed the window motor I could move the window up and down with very little resistance. 

[Cadman-iac]

Nope nothing, once I removed the window motor I could move the window up and down with very little resistance. 

 That's how it's supposed to be with the spring in place. Without the spring when you remove the motor, the glass would drop to the bottom. The only other thing that could cause a resistance is the tracks that the glass rides in. If there's any dirt or the fabric of the track lining is messed up it could cause some resistance to the glass just dropping when you remove the motor.
 If you have a little mirror on a stick, use it and a flashlight to look between the regulator and the door panel to see if there's a spring there. It's a flat metal strip wound into a coil kind of like a giant watch spring if I had to describe it. It's about 3 to 4 inches around and maybe about 3/8ths of an inch wide, or thick. If it's missing, then you would see a short, round stub sticking out the back of the regulator with a slot through the end of it for the spring to fit into. It's worth a look anyway, just to verify if it's there or not.


  Rick

[V63]

Regulator spring

(Attempting to post an image, no image means no sucess)