I haven't attempted this but reading through some of the threads it sounds like you have to cut the factory welds. Here's one thread about it: http://mmb.maverick.to/showthread.php?t=71758&highlight=cowl+repair
The right way is to remove the windshield and fenders and drill out 187 spot welds all the way around.
Or sometimes you can fix the problem by going in from the side, under the fender. When the fender is reinstalled the repair can't be seen. This helps when you don't want to repaint the car.
Hey Frank! Im curious looking at the pix. I can't quite figure out the 2&3 pix's. In the 1st. it looks like u did'nt remove the entire cowl - just cut out a major part of it. In the last pic it's hard to tell w/ the flat blk fininsh - It looks like the entire cowl maybe gone. Just interested for heads-up on my possible repair. How did u seal the vent tubes not being able to get to the outside edges? Just looked agn -Figured it out. 1.) How are they closing the hole? Welding in orig slotted panel or sealing it completely? 2.) Welding it in or using some kind of adhesive?
maybe these will help... they are glued in with this...panel adhesive. ...and Effie making it look like it didn't happen... 100_0044.JPG (28.0 KB)
Thanks! I see it better now. I like the way they/u did it, leaving a strip in the center. I appears u just sealed all air intake openings, A/C and cowl. I assume u will be using the AC w/ inside air only - other than opening a window? NICE. I see the adhesive is the only way I'd like to do mine. I don't like welding things I can't put some kind of paint on outer surfaces; whether a weld thru primer is used or not. THANKS FOR INFO.
I thought about going that route with mine, but it would have been tight to get at what I had to do. I like the idea.
Yeah, I lucked out and didn't really need to repair any holes. The cowl's water exit hole was partially clogged allowing water to overflow the chimney during a hard rain. Just had surface rust that I wire brushed and POR-15ed. Attached a paint stir stick to a brush handle and was able to POR-15 almost to the opposite side.