I have an 87 convertible and I replaced all gaskets around the windows except the windshield main gasket. I still have a leak dripping down on to both door sill trim! The top is the original one and it may just be the top is old and thin / worn. I heard if you have your windshield replaced, they seal the windshield main gasket to the windshield side metal moldings but do not seal the molding to the windshield post. Has anyone had this problem? If so how do you seal it?

Thanks

 

I know exactly what problem your having, I fixed mine 2 weeks ago.

My windshield was replaced about 2 years ago, but it hasn't seen a lot of rain up until recently. The water would get in between the windshield and the windshield molding. There is a little plastic lining between the metal molding and the windshield, but mine was ripped apart.

I removed both moldings (if you took apart you know what I'm talking about) and I put Urethane on the side of the windshield, then put the first molding, then put urethane on top of that one and put the other molding on tops of if and screwed them back in place. I replaced my rubber stripping, closed the door, and voila! its never leaked since. I've tested with the garden hose, and its been raining for almost 2 weeks every day and it hasn't leaked.

Urethane is the black gue they use to stick the windshield back on the car when they replace it.

If I ever have to remove my molding I'll have to order new ones since they won't come off easily and I'll probably end up breaking them.

Good luck!

Ps: I think you can only order uratane from a car parts store, I don't think you'll find it in any home hardware store. You could also try ordering new plastic moldings to put under the moldings and hopefully this will fix it, but I didn't want to take any chances so I went with the 100% proof way of doing it.