DIY - Sealing The 993 Windshield and Rear Window
07-06-2013, 10:59 AM
#17
Racer
I definitely have to remove lower corners of rear window seal after every car wash to dry this area up. Is this normal? Fronts are ok. Will consider this DIY. Thanks Bruce!!!
--Brian
--Brian
10-22-2013, 01:46 AM
#19
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10-22-2013, 03:24 AM
#20
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Great procedure with pics and thank you for sharing. I would be cautious if applying to an existing frame where the rust maybe hidden and sealing the frame may hide the damage even more. I recently had the windshield replaced because of rock damage and the window frame was starting to rust. There were no signs from the exterior so I am glad in a way that the windshield had to be replaced to reveal the damage.
11-16-2013, 07:19 AM
#22
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Great write up. I actually getting ready to do this. Question, How would the 996 rope part fit into this mix? Im doing a new windshield and am somewhat confused if the 996 rope trick is the way to go or this one. Thoughts?
11-16-2013, 12:24 PM
#23
I asked my installer about adding a sealant to fill the gap. His concern is that the windshield flexes in the aperture and the gap is there to absorb the flex. Filling it will put additional stress on the windshield, unless the product is quite flexible. Perhaps the Wurth product is. I don't know this product well enough myself. One more thing to think about.
05-02-2014, 01:43 PM
#25
Thanks for the write-up. If you never have to replace the windshield again, I think you should be fine. However, getting it out for the next one will be much more difficult and the chance to cause damage (to the paint will be higher. It depends on the quality of the job and how they repair ANY damages caused by getting the old sealing out (this is described in the Porsche Manual, too). In practice, this is generally not being done because the problem can be hidden for years by the installer ... I always tell them: If you cause damage or see any existing issues, do not "cover up" and I PAY EXTRA to have it fixed properly. For due diligence, I asked them to give me a call to show me the frame, before the new windshield goes back in. It is a shame to do this but looking at all the issues, it is reality.
07-16-2014, 02:16 PM
#26
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I just replaced my rear window seal and thought I'd share my experience.
I intended on following bruce7's great instructions, but I went to a windows/glass installer to buy proper urethane (i thought they might carry the Wurth stuff) and to see if they had any tips...
It turns out that they advised again filling the gap with urethane and told me to just put in a tiny bit of silicon in the plastic clip to help the seal bond properly. That's what I did and the fit is perfect!
I hope the advice I received makes sense and that I did not do something stupid. The guy did look as if he knew what was going on (he was 60'ish had seen a lot) and he told me that there are water channels that evacuate water should it make its way under the seal.
For now, the install looks perfect and putting silicon in the plastic clip seemed pretty safe for the car.
What do you guys think???
I intended on following bruce7's great instructions, but I went to a windows/glass installer to buy proper urethane (i thought they might carry the Wurth stuff) and to see if they had any tips...
It turns out that they advised again filling the gap with urethane and told me to just put in a tiny bit of silicon in the plastic clip to help the seal bond properly. That's what I did and the fit is perfect!
I hope the advice I received makes sense and that I did not do something stupid. The guy did look as if he knew what was going on (he was 60'ish had seen a lot) and he told me that there are water channels that evacuate water should it make its way under the seal.
For now, the install looks perfect and putting silicon in the plastic clip seemed pretty safe for the car.
What do you guys think???
07-16-2014, 07:15 PM
#27
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I hate to say it, but I think you will still get water in the channel that way as there are no drains on our cars that I am aware of. There should be. Perhaps other cars have drains so he would expect ours to also? But as far as I know, no drains 
If you can pull out a corner of the seal without damaging it, just try it after you wash the car. Wait a day. Luckily there was a thread on this not to long after I had got my car. I had washed it a few days earlier so went out and popped a corner of the window seal and sure enough there was still water in there. Now I pop the lower corners on the front and rear windshields after a wash and let them dry out completely.
If you can pull out a corner of the seal without damaging it, just try it after you wash the car. Wait a day. Luckily there was a thread on this not to long after I had got my car. I had washed it a few days earlier so went out and popped a corner of the window seal and sure enough there was still water in there. Now I pop the lower corners on the front and rear windshields after a wash and let them dry out completely.
07-16-2014, 09:28 PM
#28
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As a general rule of thumb, always follow the instructions from Porsche (PM if you need them). Ignore the glass guy, bodyshop tech, vw/audi/neighborhood mechanic, uncle that knows a guy that owned a Porsche, oil change technician, thread on pelican, new pcar mechanic at the dealer, etc.
04-26-2015, 12:18 PM
#30
Race Car
interesting & beautifully written up OP
.. its been almost 3 years - who's done this and how's it holding up?
ps - I like the idea of spraying the tectl water repellant wax/sealant that they use on other parts of the car (behind tail lights etc..) too
- might be safer re expansion/refitting/cracking problems?
http://www.valvolineeurope.com/engli...l_bodysafe_wax
.. its been almost 3 years - who's done this and how's it holding up?
ps - I like the idea of spraying the tectl water repellant wax/sealant that they use on other parts of the car (behind tail lights etc..) too
- might be safer re expansion/refitting/cracking problems?
http://www.valvolineeurope.com/engli...l_bodysafe_wax