i recently purchased a 70 240z in great shape, but i find when i roll up the windows, i basically have to push them out as they near top window frame to get them to seat in the weatherstripping. i've tried adjusting the tracks, but that doesn't seem to help. i've searched for a good exploded view of the door, but none of them show the rollers. on my car both the rollers are on the outside - is that correct? They push the window inward, which seems like its causing the problem. any help would be appreciated.

thanks,

Ken

Are you sure that the front guide is in it's track?

Also, you have the rollers INSIDE the door, but there should only be one roller at the top of the door, near the front. Your post implies that you have 2.

Did you see this Tech Article - http://www.classiczcars.com/forums/content.php?r=156-S30-Door-Window-Problems-and-Troubleshooting-Procedures

It's very good, might help you out.

Hello,

i just found a great pdf on window adjustment, and it mentioned the rear roller was "optional". In process of removing rear rollers now. ( unfortunately, i was unclever on the drivers side and both rollers dropped into the door when i pulled the trim off!... live and learn......)

see image for the problem i'm having - turns out both the rollers on the driver side were broken off. ( explains the window rattle when closing with door down ) and of course the passenger side and driver side are mirror images...... something else to hunt down. i ended up rolling the window up, pushing it into position and then snugging up the bolts - then it was hard to roll up, so loosened the front bolts and got it moving again then tightened everything down, seems to be working - window still slightly off but it seats itself now.

That second roller was an OPTION at the factory, but it actually is very helpful when the window is halfway up. The majority of vehicles were never fitted with the second roller, but those who have installed it report less window rattle when the window is just open to full open.

As far as your window problem, your window sash weatherstripping may be part of the problem. From the picture you post, it looks as though it's shrunken to the point where it isn't keeping the window glass in it's groove. The picture shows it already OUT of the groove. The other possibility is that you need to raise the front edge of the glass just a tad so that the rear edge of the pane will rest within the rear groove.

FWIW

E

the window moves at an angle, toward the back of the door as it goes up, its not in the window frame weatherstripping until its almost all the way up. it needs to be aligned as it reaches the top.