The Stovebolt Site Forums The Shop Area Paint and Body Shop Doors Stiff glass movement cure

I just installed new window glass runs in my doors and wing posts. All of the door rubber, and window runs came from Steele Rubber. It all worked out OK, but my door windows crank up and down very hard. It seemed to me that the channel run in the wing post was a pretty tight fit on the glass, at least more so than the glass run up the rear of the door. I imagine that this will loosen up over time, but for now it is much too tight to roll the windows up and down. I'm wondering about a possible lubricant to put in the front and rear glass runs. The only thing I could think of was some powdered graphite. What do you think?

Mike, graphite is what I was taught to use. That was a long time ago. If you can find some of that, try it and see. Some of the post channel pieces are pretty tight...at least the ones we get today and they seem to stay that way a long time. Good luck.

Find a small piece of wood or whatever which is the same thickness as the glass and slide it the full length of the glass runs to look for tight spots. A big screwdriver can be used to open up any ticht spots. Those runs are fairly malleable and easy to work into shape.

Thanks to all. I have eliminated a few tight spots. My plan was to use graphite, which I did one door. I ran out of graphite, so I used silicone on the other door. Both lubes made a pretty big improvement immediately. I'm assuming that both sides will loosen up slightly after they're used a bit.

The run channels do have a little adjustability to them.

For those who may be interested. After a few days of sitting, and rolling the windows up and down a few times each day, the side that I used the graphite on was better than the side that I used the silicone on. So, I went and got more graphite and used it on both windows. I'm personally convinced that the graphite worked out better. My 2 cents worth.