Well, the car is back together, sans carpet, and out of Mike and Sharon's garage. It took me a while to find a professional carpet cleaner who actually had a shop instead of a van, but I found a guy about 45 minutes away who does
pure steam cleaning, as opposed to shampoo and hot water. I took it over today and he said it's perfectly salvageable. And for a bargain price too. Seems like a real cool guy. He's into cars and does interior restoration on the side.
I worked on the cowl vent yesterday and I have to say that the fresh air intake is a BIATCH to get out. It had a layer of gummy sealant spread out about 2 inches on all sides. As I scraped it away it would come off in huge sheets, so I ended up taking off more than I ever needed.
Here's what I wasn't expecting: The sheet metal has a 3/8" lip all around the opening. WTF? Can someone explain how water gets in the intake with that lip in place? I'll get back to this in a minute.
Anyway, something I noticed was that in the rear of the cowl "cavity" where the "floor" meets the firewall is a bead of sealant. It was very soft and full of tiny holes. That long gash on the left you see was where I pushed a gasket scraper into it. It's like playdoh.
So I ran a bead of marine sealant along it. This pic is at the halfway point. I only went up to the center bracket for now, as I didn't feel like dealing with all the wiper motor crap. I'll deal with it when the engine's out of the car in a few weeks:
The fresh air intake back in place with sealant glopped on it. The next day I painted the area black to cover any bare metal I might have scratched through when removing it. And to make a completely invisible part of the car more presentable. :wink:
So back to the cowl leaking issues... Ford used cheap foam weatherstripping on various parts, which was totally dried up and fell to pieces like a saltine cracker. I replaced the foam on the bottom edge of the forward "wall" piece on the passenger side. There is also a really cheesy hunk of foam on the outboard side consisting of two pieces of foam stuck together back to back and then glued to the metal (you can see it in the last pic above). It had come off and I'm going to go back and replace it as soon as I find some suitable weatherstrip.
Here's the thing: With that lip in the sheet metal for the air intake, I couldn't fathom how water got in through the intake except right through the mouth. If the cowl panel isn't pressed down against the windshield, I could definitely see water running right down the windshield, under the cowl panel and directly into the intake. While looking at the underside of the panel, I noticed a foam strip running along the area above where the intake sits:
The foam sits on the lower windshield support/driprail/whatever it's called, and its purpose is obviously to block water that gets under the cowl as I just described, and divert it off to the sides of the inlet. The ends of the foam were lifting up, so I suspect this is actually where it's coming in. I know this isn't news to some people, but it was to me. In any case, I think the proper solution would be to put on a new piece of foam and make it longer, along with angling the sides so it's narrower at the top. With a more pointed corner, water would tend to drip straight off instead of possibly running along the bottom of the foam. You know, surface tension and physics and all that. :wink: Anyway, that's next.