Gluing window guides

[col320ce]

I'm just about to repair my windows and was going to use a polyurethane to glue the aluminium guides onto the glass.
There is talk of putting felt in there between the layers... Is this redundant with the polyurethane?
Thanks!

[Cees Klumper]

I did this task a few years ago and I believe I did use the felt, as well as two-part epoxy glue rather than urethane. As I recall, the felt 'filled up' the space between the glass and the guide, as well as act as a sort of 'carrier' for the glue.

[FGN59]

Hi
I made this repair 18 months ago (together with a complete refurbishment of both windows winding mechanisms). Having read many posts on the subject, I came away with the understanding that a piece of felt imbedded in the glue between the metal jaw and the glass prevents direct contact between metal and glass. The epoxy glue will impregnate through the felt, so that you still have a strong bond between the jaw and the glass. Not sure this would be the case with polyurethane, but then I don’t think I really understand what you intend to do with it. I ended up gluing the felt to the glass, and then gluing the metal jaw over the felt while the glue was still fresh on both layers so that it formed a single bond. Used a little bit oversized felt pieces to maximise the bonding to the glass. Seems to work (but it’s still recent).

[col320ce]

I like the idea of the felt preventing contact directly with the glass. I also agree that the polyurethane won't disperse through the felt.
What I think I will try is using some very small rubber spacers in a couple of areas.
I'll post pictures... And a follow up in 10 years time to let you know how it held up over time. 😂

[kampala]

I did mine on the 250 in late 2012 with Felt & Epoxy - so about nine years later it's still holding fine.   

(now I gotta find a piece of wood to knock) 

[Leester]

Does it matter where the blocks are placed and if so is there guidance on location. Hopefully I will be reassembling doors soon and I know that some of the blocks are separate from the windows. Thanks in advance.  Lee

[mrfatboy]

It does matter. My friend and I just redid his driver side door.  The guides were loose and they were mounted in the wrong position that hindered an easy glide.

I wish I took pictures. There might be pictures in the tech manual.

[mrfatboy]

I found this picture.

[col320ce]

This is where they are on the windows on niemollers website... So I put my smaller one flush with the edge... Hope it still works here as I don't fancy trying to remove it now   

[TJMart]

It definitely matters where they are placed. The guides must be in the correct place and direction to fit the tracks they go up and down on. As I recall on mine the guides completely fell off but the glass had the felt attached and the dirt over 40 years had left a pattern of where they were. Just had to figure which direction. I did both doors at the same time to use one as a template in case other things are missing etc. you can use the other door to help you figure it out.

As to what to whether felt should be used I would say yes. The felt acts as a buffer between the glass and metal guides and the guides are wider than the glass itself. I bought  my felt at a fabric store and made sure the felt was thick enough so the guide fits snugly. I used JB Weld a 2 part epoxy glue and just ran a bead around the edge if the guide and glass. They aren't going anywhere.

[Pawel66]

I followed this instructions precisely and it worked just fine: https://www.sl113.org/wiki/ChassisBody/Windows

I think it is describing all the aspects.

[66andBlue]

The felt - or similar material - helps to align the glass parallel to the guide (jaw) surface. See pictures here:
https://www.sl113.org/forums/index.php?topic=11543.msg77434#msg77434

Gernold likes the 3M adhesive but any 2-part epoxy will work.

[col320ce]

Thanks for everyone's help!

I get the panted shell back soon so we'll se how it all goes.