QUOTE (David Morgan @ Mar 15 2010, 11:39 AM)

...It apparently had started leaking, so the fix of course was at least 3 tubes of clear sillicone adhesive, layered on over probably several years.... Basicly eveything nigh of the glass, had an inch layer of sillicone on it.... I beleive the window is salvagable but it is going to be a nightmare to get all the silicone off. Dos anyone have a recomendation on a way to get it off the aluminum?

Welcome to the nightmare. There is no "good" way that I know of to remove silicone. And we won't even get started on the invisible, yet contaminating oil it leaves behind. But here are a few thoughts:
1) Sometimes it will kind of roll off reasonably easily (this obviously isn't one of those times).
2) Your next step is to cut away as much as you can, perhaps with a razor blade (this is silicone to silicone contact).
3) Now you have to carefully scrape as well as you can, but not "kill" whatever you are trying to remove the silicone from. I've used the plastic razor blade type scrapers, metal scrapers (careful!), a fingernail (THAT gets tiring), shaped sharpened dowels, etc. etc.
4) Supposedly there are silicone-remover type sprays/formulas. I have not used them but people who have reported back say they are not a magic cure-all by any means. Still, you might try one when you get down to just a small amount left.
5) Be wary of "grinding" the silicone (and its contamination) into the fiberglass. You can test the surface when you're done by putting water on it to see if it "fish eyes" (the water kind of moves away from your area in a group, instead of lying evenly everywhere).
If anyone has any other tips (or if I think of any), please post them!
I feel your pain

Raya
PS: Interesting that the butyl was still nice and pliable. Probably there were just a few small leaks that could easily have been solved by simply re-bedding the window with butyl. Yes, that butyl is demanding stuff: You have to re-bed it every 25 years whether you want to or not