leaking water at rear glass

edward993 · 01-11-2005, 08:35 AM

In the recent SoCal deluge, I discovered that water in coming in at the bottom corners of the rear window. Has anyone tried sealing up their rear glass with silicone or the like without having to replace the glass or it's window seal? TIA!

Edward

TMH · 01-11-2005, 10:06 AM

Edward,

Whether it helps you or not, I also had a leak which seemed to be coming from the rear glass seal into my '87 Coupe. It became very noticeable as the rear seats and everything else is out of the back seat area, so the water would pool in the bottom of the metal seat pan.

I tried some rather low viscosity silicone, thinking that it would flow like water into the problem seal areas and would ultimately plug things. It made no difference, so either the water is coming from somewhere else or silicone sealant just doesn't do the trick.

YMMV, but I think that it might be best to just have the seal replaced professionally if you are sure that the leak is coming from around the glass.

Tom

Deschodt · 01-11-2005, 12:11 PM

Ditto. Sealant did not help - they all leak there eventually, front too.. A new seal is the long term solution...

randywebb · 01-11-2005, 12:55 PM

See if a windshiled place can inject some sealant as a temp. fix.

aigel · aigel's Garage

Injecting Silicone will make life hell later. You will have to get all that stuff out of the window channel when replacing the seal. Do not put silicone, just bite the bullet and replace the seal. I have done both front and back, it's cheap, and get some beer, to make it through the -very aggervating- job!

G

randywebb · 01-11-2005, 01:18 PM

I don't know what the place uses, but they solved my problem.

Erakad · Erakad's Garage

Had this problem on mine, went to the parts store, they sell silcone sealent in small tubes for this, then ran it under the gasket. I have been dry now for 3 years.

edward993 · 01-11-2005, 05:02 PM

Thanks for all the feedback, guys!

Is the gasket an easy and straightforward DIY job? Does the glass have to come out or do I just yank the old gasket and insert the new one? Any specific procedures or caveats? Thanks!

Edward

Deschodt · 01-12-2005, 05:05 AM

On a 993 (wild guess on my part) it's a tad more involved than on an older car. The 993 has an outer gasket/trim piece, which when removed reveals a gap between the glass and the body- that is where a 993 owner usually places the Porsche foam cord soaked in silicon to make the rear (or front) glass QUIET. After that, I am guessing but I believe the glass is glued and there's gotta be an inner gasket, so I'd guess it's more involved, yes. On older cars - as mentioned above - it's just a rubber gasket, pop windshield, reinstall...

Depends why your car leaks, takea look! Maybe the outer gasket is not doing its job, but it's more like a piece of trim anyway so I don't know. But if it's indeed a 993 we're talking about, that's kinda strange(r) and probably more involved than an older car. NOte that is there is rust there, you might still be covered under the 10y corrosion warranty ! If so, you might be able to get th edealer to do this job for you "in order to fix the rust" - ha !!!

edward993 · 01-12-2005, 08:10 AM

Thanks, but I should have been more clear. The leak is on my SC, not my 993. I wonder if that even matters, but has anyone here done a rear window seal themselves? Is it a straightforward DIY, are there tricks/tips, or should I bite the bullet and have it done? Thanks!

Edward