Hi All,

Is there a site or any advice here on stopping water from coming into the 77?
I adjusted the windows and they are now sitting right. I am getting a drop here and there from the T top center bar area and from under the dash that I found coming in from the sides of the cowl, past the screens on the sides, ever since the front windshield was replaced.
I brought it back and they pressure tested it and found nothing.
My floors are always wet (an inch or more) after a good rain and I had to buy new carpets.
I will not put them in until the water stops.
Thanks for any help.

Thanks
Jack
77 L82

PS: The passengers side window, the front nut that holds the glass is loose. What is the best way to tighten it. Thanks

 

I would flood the cowl and see if water is coming in around the kick panels. The cowl drains may be stopped up from trash or whatever else might be in there. Have you ever noticed if the doors slosh after a hard rain? The drain holes could also be plugged allowing water to come in from behind the door panels. I'm assuming your weatherstripping around the doors, etc is in good condition. I just replaced mine finally for about the same problems you are having. Good luck and have patience. You'll need it.

 

Hi,
All new weather stripping.
The drains are clear but water is coming in from the speaker kick panels.
I cleaned everything out and pressure tested the windshield.
I have new rubber on the t tops too but still getting water on my floors.
Thanks
Jack

 

there are lots of ways for water to get into a C3,
like mentioned early put a hose in the cowl, and check for water,
if .......you pass that test then move up the windshield.
also check the birdcage to firewall seam. you can see each side but you can't see the seam under the windsheild in the middle, (without pulling the windsheild)
No gap or crack allowed, water will run down the windsheild right into this seam.

 

There is a thin sheet metal plate under the rear portion of each fender. It is part of the birdcage, forming the lower edge of the cowl and the top of the door hinge pillar. This can easily rust through and channel the run off from the windshield directly into the interior through.under the kick panel. This area is usually concealed by a long rubber filler strip. To check, use a hooked tool to raise the outer edge (side towards the door) of the seal out of this area. Run your hooked tool over the lower surface of the cavity concealed by the filler strip. If it catches, this metal is probably perforated and this is the path of your water leak. You can further test by putting a small amount of water gently into this cavity and check underneath for leaks.

Good luck!

 

Here is how I adressed the flow of water into the cabin as you state that yours is. You are going to need a water hose, some wrenches, and a thin flat blade . Remove the door sills, seats , kick panels, the flapper door just inside of the vent opening... You might think you broke it but you won't . Pull back the carpet and padding and you will see a drain plug on the floorboard.and park the car so that you can look and reach under it with comfort.
Turn on the water hose and direct a full stream flow down the corner of the tray area where the wipers are...and you will see where it drops off into the A pillar... This is the cabin fresh air intake....see how the water just rushes into the car. With the seat removed you can lay somewhat in the car and reach in the vent and start pulling out all the litter that has collected over the years. Then outside of the car get down and look up at the bottom of the area that you have been cleaning... And you will see what looks like a unsealed seam....this is the drain... Use a thin flat blade and work it into the seam and slide it back and forth... in and out untill you are satisfied that it is clear..repeat the cleaning process, until you have a clean vent...and drain seam. I used a lot of water to flush this area and removed a lot of tree litter, sand, and silt...you will see how it all goes . Takes about a hour from start
to finish. Just take your time and see how everything is assembled, so that you can see how to take the components apart and reassemble them. I did this several years ago so I think that I covered everything... If not the Vette will show you what needs to be done...just look at how she was made and let that be your guide.

 

just look at how she was made and let that be your guide.

I will try this OB1 !

Thanks
Jack

 

That does seem a little corny now that I read it.... But it works... Also, this has been discussed a few times here...so you might find something... You might try to view a few firewalls on some of these Vette's that have been in a restored process... And the parts catalogs and on line information from some of the Vendors have exploded views of what you are going to working on...maybe some of the folks here that can could post some pictures of the detail areas...also if I remember correct... The vent doors are held into place with a spring loaded pivot rod...it really is quite easy .... You might try to vacume

 

Did you replace the windshield weather strip filler that sits under the fender corner? I got mine from Corvettecentral.com

 

Mine are still in place and solid
Thanks
Jack

 

Has anyone here died that stuff on the infomercial called "flex seal"?
I was thinking about buying it and using it on my inner leaks.

Thanks
Jack
77 L82

 

Spray or brush covering over the problem only delays and worsens the problem,
you should atleast know where actual problem is, and why its leaking,
before just spraying everything.
just leaving old rust in place, is like a sentence to a life of cancer.

 

I just bought the book Corvette Water leak and wind noise solutions.
Lots of goof tips.
Between what is posted here and the book, I hope to have a dry car soon.

Thanks
Jack