You could just back up a couple of hours and not have started a "project". That was me yesterday. At 2:00 pm I had just a floppy vent wing window. At 3:30 the whole drivers side door is torn apart. I thought this would be an "easy fix", not so. I now have the vent window completely removed, the rubber gasket off, and it's been sanded and repainted. But, as for tightening the tension itself, what a needless PITA! The head on the tension screw faces outward, and there is absolutely no way to get any type of screwdriver in there to tighten it. IIRC correctly, on my old Bays this WAS a simple job. I did check the archives AFTER I was in way too deep, and did see a good suggestion about using a pair of vice grips (would have to be needle nose) to get it there and tighten the screw. I couldn't get enough grip with just a regular pair of needle nose, and I don't have any needle nose vice grips-yet, I will soon. I just love it when what you think is going to be 15-20 minute jobs turns into
 hours. Oh well, the frame was starting to rust slightly, so at least thats some consolation that that is taken care of!        Jeff