Hi traveleze,
All the TR7's I have owned had windscreen leaks due to the old seal giving way. You probably need to cut out the old screen to reseal it anyway. The windscreen trim is glued into the car with the windscreen and is not made to be removed separately.
It is quite easy to remove the screen and the trim intact. The trim is in three parts, two large hockey sticks and a little center piece that is made of unobtanium.... small and easy to loose so you can find the hockey sticks but not this.
<u>Method</u>
(Key issue is the shape of the trim, it is "T" shaped.)
Two of you simply find a piece of accelerator cable, remove one strand (to make it rough and cut better) and slide it through the broken seal in some place. Now you use it like a saw, one of you on each side of the glass, pushing and pulling in sequence as you slice along the edges of the screen.
<u>Here is the trap</u>
Remember that the trim is "T" shaped so as you come up to it you have to somehow get your wire down and under the bottom of the "T". If you miss that then you will be stopped because you are sawing against the vertical of the "T", completely blocked.
<u>Solution</u>
You cut out the screen in three separate phases.
(DO NOT move the screen at all until all phases are complete or you will crack the screen.)
1. You poke a hole somewhere under the bottom of the screen, through the old rubber seal, which will probably already be loose in some small area anyway. From here you can thread your cutting wire and cut across the whole bottom and up just a little on each side until you meet the "T" trim. Think of this cut as a smile shape or "U" shape. NOTE - The section of the trim you come up to on each is a real difficult area. The leg of the "T" does not start for a couple of inches so your cutter slides up, is blocked and then is too well covered for you to access and dig to hook the cutting wire underneath the "T". Stop here and move to phase 2.
2. You now look at the center top of the screen and can see that little joiner trim in the center, the one made of unobtanium. Slide that to either the left or right, as it is designed to do, to expose the glue/seal rubber between the two hockey sticks. Now dig it out, the old rubber and or seal, with a small screwdriver and razor blade knife. Get the knife into it from inside the car too. Slip your cutting wire through, bring it up to the trim and gently against the side of the "T". Here it is, now since you have dug a hole you can use that same little screwdriver to push the wire under the "T". It will take a little effort and slow start to cutting as you get it under way. Yes it might pop up and you have to start again but keep doing it and it will work, you will get it under the "T". Now saw down to the bottom and you will find you have cut into the area already released by phase 1. Move to phase 3. DO NOT move the screen or you will snap it.
3. This phase is the mirror image of the last phase.... and when this is complete you can finally move the screen.
<u>Note:</u> you will need at least 4 sections of cutting wire as it gets hot and snaps after a while.
Jolyon