eddadams

I have just pulled the window regulators out and replaced the rollers, cleaned the tracks and regreased. I followed the instructions from a tech article on ZIP's web site. The windows work much better and I was able to get the glass adjusted were it seats in the weather stripping much better. But when the window is lowered all the way down the one arm on the reulator that attaches to the long track at the bottom front of the window hits a bolt head on the power window motor. Has anyone experienced this? I do not believe I bent the regulator arms. I must have something not aligned correctly. Possibly the inboard/outboard window adjustment. Any help would be appreciated.

comp

not sure on yours, but i have ground the head of bolts for clearence before on
other cars & trucks

eddadams

Thanks, I was think about grinding them, but I was hoping it was just an adjustment.

surfolly

I'm not sure if this will help -I last replaced a window regulator on my mother's 75 Stingray when I was a teenager, and I paid the local Corvette shop to replace it on my 1980. I'll have to peek at mine again, but make sure the drive motor is not flexing in and out under the stress of raising and lowering the window. If the motor and it's support flexes, you could have the regulator hitting the motor. I had to reinforce the metal supporting the motor on the '75 to keep it from flexing. I cut and bent a piece of steel and then curved it to the contour of the door panel and then used the mounting bolt to hold it all in place. This is my recollection from about 18 years ago, so I hope this helps!

eddadams

Thanks for the thoughts. I did two things that seem to have fixed the problem. 1st I installed a washer between the regulator mounting bracket and the door frame on the highest bolt closest to the front of the car. This changed the angle on the regulator slightly. 2nd I used a small high speed grinder and ground a little off the bolt head that was being contacted. The door sheet metal does flex some. I may look a reinforcing it too.