For some time now I've been trying to stop the water from getting into my '77. It appears to be comming from somewhere under the dash. I've changed the weatherstripping on both sides to no avail. I've also added silicone to the weatherstripping again without success. Not a major problem when driving. Got a river this last rain while parked. A little help from anyone out there would be appreciated.
-
-
Re: River
Joe -
I am no expert on 77's but as I recall, I remember folks on the board saying GM used a putty like material on the pillar posts and there is a hole on each side they sealed with it. The putty got hard after a while, and caused a leak like you were describing. It would be underneath the windshield trim. You may want to check this out in the archives. Perhaps someone else will have more to add.
Hope this at least gives you a place to start -
Regards -
Pat -
Re: River
If you follow the birdcage pillar pinchweld down below the lower corner of the windshield, there is a hole (5/8"-3/4" diameter) almost exactly 3 inches below the very bottom of the windshield glass (trim off). More accurately, the hole is under the fender. The sealant GM used is as Pat described, and after it loosens up, a mysterious river does begin to flow into your C3 Corvette.
The bad news is that leakage through this hole is a hopeful diagnosis; leakage could also be through holes rusted in the windshied frame area, another common problem for C3s.Comment
-
Re: Mid-Year information - may apply to '77
Attached is some information I put together relating to my '65 for a chapter meeting. I replaced the front clip and found a great deal of debris in the bottom of the cowl vent area. I do not know if this applies to a '77 but others may be interested. Good luck water inside is a pain.
Dave
Comment
-
Re: River
There are a number of alternatives which others have mentioned, but here's two more to ponder....
(1) If prior windshield replacement was 'botched' without appropriate caulk, water could be flowing around and under the glass. Unfortunately, this is a rather large job to diagnose as you have to remove the reveal molding completely to inspect....
(2) There are several pieces of trim on the backside of the windshield pillar posts to adjust and seal against the window glass. These HAVE to come off during a windshield replacement.... If you study the AIM (Assembly Instruction Manual) you'll find there were multiple sealants used between adjacent pieces to thwart water and few windshield 'pros' bother to re-seal properly at the side molding location....Comment
-
Carry a large supply of dry towels
Until I actually do the restoration, I have always carried a few towels to wipe the windhield clear during the rain and in the cold.Comment
-
Re: River
Thanks for the suggestion. Hope to have a look this weekend. I did spend a little time in the archives really could not find anything. Can you help me narrow my search any.
Thanks again for the response.Comment
-
Re: Mid-Year information - may apply to '77
Vacumed out a lot of trash. Also took of the kick panel and found more. Even if this does not solve the problem, so much trash can't be good. Thanks to everyone who offered suggestions, hopefully one will solve my problem.Comment
Comment