I'm back with a 911T - but have a window channel problem

[Deschodt]

Been a while, since I sold my backdated SC back to my friend... I since found a 1972 T in very original shape, if a little rough paint wise...



H4s on order !

I'm having a problem with my driver side window, I understand the problem, not so much the solution ;-) I bought the car with a non-working window (in a downpour - I got very wet to protect the precious door pockets), and indeed I fished the glass out of the door today, it's intact, but it doesn't want to stay in its bottom support channel.

Greg's incorrect nomenclature here:

A: Window winder with its 2 plastic thingamabobs.
B: Channel that receives the glass, sliding on the aforementioned thingamabobs (see artful bidirectional arrow on picture)
C: The glass, with a rubber bottom.



Here is the behavior - I'm making assumptions here that may be wrong:

I can pop the glass into The bottom channel B, and sort of guess on the alignment of A into B (B slides horizontally), and the window will wind UP OK - so I can stay dry (and hot). When I wind it down, the glass doesn't move and B pops out of the glass immediately, within I'd say 1" of travel, the A+B parts go down on their own….

Is it just a matter of glueing/attaching the glass bottom "better" into that B channel ? I checked the vertical guides for the window and I can slide the glass up and down by hand without "much" resistance. It's not exactly a guillotine, but it goes w/o much effort. Hard to quantify but it did not seem to be an issue. If the glass was kinda glued into B I think it'd go down. Ditto on the window regulator, it goes up and down very smoothly… So why is my glass separating from the bottom support channel ? I have a theory (everyone hide!!), I think it's got to do with the positioning of the glass into the B groove.

The sliding channel that receives the glass (B) appears to be sitting off axis vs the vertical window channels. In the picture below, the effect is *exaggerated* by the fact that B also slid too far back and now rubs on the vertical guide, definitely making it off center… I can recenter B. Problem is, what is center ?? Methink if B stayed "centered" between the 2 vertical grooves, it would stay aligned and support the glass all the way down.



So basically I am unsure of the correct initial positioning of A vs B vs C.
B slides on A, and it must do so to keep pushing the window up slanted vertical guides… But where is the correct start position ? Same with the glass, really, if B is positioned funny I imagine it'll make the glass pop off from the B channel…or it'll force the B part to touch the vertical guides… Is the glass glued/otherwise affixed to B normally?

I hope this mumbo jumbo makes sense…

Also, I found this in the bottom of the door, but the PET showed no similar part in the arrangement….



Any help would be gladly appreciated ;-) I'll go dismantle my 912 to compare and swap parts, if I have to !

[herman maire]

Your pictures are not working but if your window mechanism raises and lowers with the hand cranks, it sounds like you just need to re-glue the glass onto the window mechanism.

Just be sure where the glass sits on the mechanism, its not rusted out, thats usually why the window disconnects. If it is rusted out, find a good second hand unit.

I have one that I need to re-glue on one of my cars.

[dafischer]

The spring is one of two from the door stay.

[herman maire]

I agree, the spring is from the door stay.... there is so springs on the window mechanism.

[Deschodt]

Originally Posted by herman maire

Your pictures are not working but if your window mechanism raises and lowers with the hand cranks, it sounds like you just need to re-glue the glass onto the window mechanism.

Just be sure where the glass sits on the mechanism, its not rusted out, thats usually why the window disconnects. If it is rusted out, find a good second hand unit.

I have one that I need to re-glue on one of my cars.

Are they still not working ? I see them from every computer at my disposal, you may have hit the page at a time where the server was down ?

So, you can/should reglue the window to the tray then ? Any idea about the exact positioning, is there a mark anywhere ? What sort of glue can you use ?
Thanks !