Leaking windshield again!!!!

[747mopar]

I finished my 69 Charger about 3 yrs ago and the one single thing I farmed out was installing the windshield... couldn't go wrong with a total for new glass and installation being $165.. or you would think! He was here 3 times trying to seal it and it still leaked. Over the 3 years of driving it I've only noticed a few drops in absolute downpours but avoid rain so I was hesitant to dig into it. Well I had to leave it outside while I hung drywall for the weekend and just noticed the window steaming up....... carpet is soaked!

So my question is how do I fix this once and for all. It is new glass with a new gasket. I even had him use liquid butyl rubber under the gasket and I filled the glass groove as well. Is there a better gasket? Also what's the trick to carefully removing the trim?

 

[383MovingViolation]

Maybe it's not the windsheld. Could be coming in through the cowl or maybe the seals around the windsheld wiper things. If these seals were never changed, they will dry out and leak. Just some thoughts. My Roadrunner still has a leak some where that I'm trying to find. As for removing the trim, there is a special tool just for that job. It slides between the windsheld and the trim and releases the clips. Good luck

 

[747mopar]

Can someone point me to the correct tool?

As for the wipers and cowl, I know the cowl has no leaks because I had to replace the top and was able to inspect it... excellent condition and yes the wiper shaft seals were replaced. Also I have been able to replicate the leak using pressurized water and it is getting past the glass, just don't know whether it's around the glass or the body?

 

[themechanic]

The tool is like the pointed one second from the right below.

They sell this kit at Harbor Freight.

https://www.harborfreight.com/4-piece-windshield-door-trim-tool-set-38386.html

 

[747mopar]

Thanks, I'll get one coming.

 

[themechanic]

Another place to get it by itself for $2.59 + $5.25 shipping on Amazon.

https://www.amazon.com/CRL-Universa...rd_wg=IpLOh&psc=1&refRID=GX4YBFTBS1733TSQGXAG

 

[garrett1308]

Window trough may not have been clean when the gasket was installed. Some piece of debris or enough dust could be stopping your seal from sealing. Just a thought

 

[Billccm]

I had a Duster back in the 1980s that leaked after a windshield replacement. The Safelite auto glass company gave up after numerous attempts.

I took the car to my friend's fathers Body Shop. He said "I'll fix this, and it won't ever leak again, but you won't like how I do it" (the car had a fabulous $3,000 paint job).

He popped the windshield trim and got stupid messy with the butyl rubber. I mean he globbed it like crazy. I was panicking as he was snickering. Before the rubber set up he put the trim back on, and butyl rubber was oozing everywhere.

I was pacing back and forth and ready to scream. He went back and got a gallon of solvent and a bunch of rags and just starting wiping up the mess, told me to leave the car overnight and go home and relax.

The next morning I went back and he wiped more excess rubber off that had oozed. I took the car home and was still uneasy as I could not wash it and get wax back on the paint that the solvent had surely removed.

A few days later I washed the car-no leak. A few days later drive it on the interstate in a downpour-no leak. I went back and thanked him and took him out for a beer.

 

[snakeoil24]

Why would you panic and pace? Common sense is you have to use Butyl rubber and it would not hurt the paint. Another thing to remember is to sand the finished paint on the window opening, sealers don't like to stick to paint they want primer for proper adhesion. I would paint the edge of glass with butyl rubber liquid using body man yellow 3M tape. let dry and remove tape. THese old cars where crummy for sealing properly. The young guys use Urethane caulk guns but it doesn't work right with these clunkers we love.

 

[747mopar]

Why would you panic and pace? Common sense is you have to use Butyl rubber and it would not hurt the paint. Another thing to remember is to sand the finshed pai nt ion the window opening sealers dont li ke to stick to paint they want primer for proper adhesion.

On the windshield? I thought the gasket basically did it all and didn't require adhesive? I know I'll be slapping **** tons on it this time.

 

[Jim 68cuda]

Very few glass shops have techs who are old enough to remember how to install the old style windshields with gaskets. I too had a glass shop give up after several attempts at sealing the windshield after body work and paint. Now a buddy has found a local independent auto glass installer that Only works on the older style windshields with gaskets. Local restoration shops keep him busy.

 

[snakeoil24]

On the windshield? I thought the gasket basically did it all and didn't require adhesive? I know I'll be slapping **** tons on it this time.

Paint the liquid butyl right on glass edge as well as pouring right inside gasket slot. I know it sounds crazy but if you find an old time glass man he will tell you slop it on and also support glass in gasket with blocks for 3 days before you install any trim.. a messy job for sure.

 

[Mike67]

Not trying to scare you but the Nova we just finished up cost 2 windshields and 3 gaskets before We found one that fit half way decent... Hopefully this is not your issue. Good luck with it!

 

[snakeoil24]

I can believe it for sure nothing is made right today.

 

[747mopar]

Looks like I'm in for a real treat! Can't wait..


The glass guy did show me a product that does a real good job of cleaning up the butyl. It's hand cleaner towels much like baby butt wipes but Orange, I'll try to find them and let you guys know but they worked great.

 

[747mopar]

Tool ordered, thanks guys.

 

[mmissile]

Bedding compound for the seal to body.
Liquid butyl for the glass to seal.

 

[747mopar]

Bedding compound for the seal to body.
Liquid butyl for the glass to seal.

I'll look that up, so no butyl between paint and gasket. Thanks

 

[747mopar]

After looking it up I'll chalk up the leaky windshield to both myself and the glass installer not having a clue!!!! Thanks missle, looks like I'm just not old enough to know better lol.

 

[Speedbird]

You can use gobs and gobs of something like this that will never set up. It can be easily removed with mineral spirits.
And it probably won't leak.

Or you use can a setting urethane like this and it won't leak. But you will never get the rubber back out of the car.

I have used both. My latest nightmare was the 67 Charger. I dithered between the two.
And since I wanted the option of removing the gasket, I went with the soft stuff.
No leak check, yet.