Are there rollers in the window rails?

[MADMarc]

I have been trying to track down why my damn DS window won't go up and down smoothly anymore. Problem began when I swapped the window regulator. I checked the regulator and it slides smoothly. There are no bends or obvious abnormalities in the regulator at all...I decided today, after having the regulator in there for a bit, to take the panel back off and see where it is binding.

The window seems to be binding on the frontmost rail about midway down. When the window is going down as soon as it hits that spot the motor keeps going fine, but the window shakes from the front as though it is catching or rubbing on that front rail. I loosened the regulator allowing for it to flex and the shaking goes away almost entirely. Soooo....here's a pic of a worn spot on the front rail where it appears to be rubbing:

http://i6.photobucket.com/albums/y214/MADMarc/IMAG0158.jpg

My questions are is there a roller or wheel in there that might not be spinning freely? Is that spot supposed to have any grease on it? Is this a common area to have issues? I've got the panel off right now and never touched the rails but can't figure out where else this problem could be coming from. Beginning to drive me a bit nuts.

[MADMarc]

Huummmm...sprayed some grease on the insides of the rails and it moves MUCH smoother now. Going to keep an eye on it and see if it helps the prob long term or not.

[box]

its quite common for s/hand regulators to have slight binding issues when theyre put in, especially if the grease has gone dry. What you should try before going any further is spray both runners with silicon spray and see if it cures the problem (i would be surprised if it doesnt)

Edit- too late :p If lubing it fixed the problem, it should work fine for the life of the regulator

[MADMarc]

Thanks for the response :)