View Full Version : Power vent window issue
05-27-2016, 11:36 PM
Trying to solve the problem of not being able to install my power vent window motor/regulator correctly. Take a look at this video, then come back and tell me if you have a solution.
Basic problem is that coupler between motor and window shaft only has two positions it can be installed in. In one position, window only opens an inch. In the other position , the window is wide open and moves to about half open and stops. The video should help explain what I've been talking about for a couple of weeks, a problem that has brought my rehab to a grinding halt. This happens when I try to install either the drivers or passengers side vent window motor. They are not interchangeable. Thanks in advance :) for any help!
05-28-2016, 06:01 PM
Have these motors been rebuilt. It seems like the gears are not oriented correctly.
05-29-2016, 12:32 AM
Just bought the car last month, with no functional power windows. Neither motor appeared to have ever been out, both were original, still with the rubber coating. One could not be fixed so I ordered another on Ebay and it has the same disorientation. That's the strange thing about it- BOTH sides are like this. One side would be easier to understand.
Looks like I will have to machine a new slot in the coupler, perpendicular to the original. That should solve the issue. If any similar looking coupler exists where the two slots are parallel to each other , then that's what should be in mine.
05-29-2016, 11:41 AM
After looking at vent window frames/shafts on Ebay, it seems there were two different ones produced, one with the slot on the end of the shaft parallel to the window and one with it perpendicular. Mine is the latter, and that doesn't work with my motor/gear setup. Maybe the first one is for manual crank windows?
05-29-2016, 12:41 PM
To my knowledge the vent window frame/shaft is the same for manual and power windows. The Ford parts book also only has one listed. The way you mounted it the second time seems to be correct other than the window not opening wide enough. I'll dig out my '66 manual and see if I can come up with anything.
05-29-2016, 10:05 PM
When I cut a new slot in the coupler perpendicular to the existing slot and tried it, it worked fine (except the stop under the gear stops it before it can quite close fully). I assume the position of the shaft where it enters the vent window frame can't be changed? Thanks for looking into this.
Here are the two images found on Ebay with the two different shafts (both are advertised as '66 Tbird parts):
05-29-2016, 11:14 PM
Fred, I took the liberty of re-sizing your pictures. They were twice the size allowed on this Forum. Please, when posting pix in the future, keep them to no bigger than 800x600pixels. Thank you.
05-30-2016, 10:13 AM
I don't think you can change the position of the shaft. I believe they are welded in place. Since it appears that you have all the correct parts there must be a simple explanation why it doesn't work correctly. My suggestion is to call Bob's Bird House. I've called them numerous times in the past to ask technical questions. They will know if there's different parts for power and manual vent windows.
06-01-2016, 04:48 PM
Bob's wan't aware of this issue . Hopefully I'm the only one who runs into it, as re machining the couplers to make them work can take quite a bit of time and ruin (in my experience) one original Dremel tool and two Harbor Freight replicas. But now it's done. Now dealing with a quarter window that won't go up well, despite running smoothly in the tracks and having plenty of spring counterbalance power.
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