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    May 6, 2009 2:45:03 PM

    Strategy_Dude
    Junior
    Strategy_Dude
    Loc: Utah, USA , United States
    Posts: 55, Gallery
    Registered on: Mar 4, 2007

    New Windsheild - Installation Difficulty

    Anybody else had problems after their windsheild was installed?  I had mine replaced last week at the dealership, got it back and it was whistling badly even at 30 mph.  The installer found a leak, worked on it for an hour and said he thought he got it.  Well, everything's fine up to 75 mph, but then it starts whistling again - not as badly mind you, but still whistling.  He's now saying he needs to pull the windsheild off and reinstall. 

    Question is:  is seating the window in the new seal on the 997TT that difficult or problematic?  Or, does my installer just not know what he's doing?


    --

    2007 Porsche 997TT

    2008 Jeep Wrangler Rubicon

    2007 Lexus GX470

    May 6, 2009 3:18:35 PM

    easy_rider911
    Rennteam VIP
    easy_rider911
    Loc: London , United Kingdom
    Posts: 22190, Gallery
    Registered on: Nov 8, 2004
    Reply to: Strategy_Dude

    Re: New Windsheild - Installation Difficulty

    At the factory, it's one of the few tasks that is done by robot. It needs very precise placement and pressure. Carlos from Spain had some stone chips in the past and has some useful experiences that he could share with you about this subject.


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    Rennteam Moderator - 997.1 C2S Coupe GT Silver/Cocoa, -20mm/LSD, PSE, SportDesign rims, Zuffenhausen collection

    May 6, 2009 4:23:28 PM

    Carlos from SpainM
    Rennteam Moderator
    Carlos from Spain
    Loc: Spain. , Spain
    Posts: 21156, Gallery
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    Reply to: easy_rider911

    Re: New Windsheild - Installation Difficulty

    Right! I'm on my fourth windshield or so, lost count. But I haven't encountered any of the problems you mention in any of them

    My only problem is that re replacement windows chipped and cracked afterwards with any minimal impact (unlike the factory installed one). For some reason, this one I have know is lasting much longer, even though its got some chips, but its able to withstand impacts much better. But no wind noise at highspeeds.


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    May 6, 2009 4:47:27 PM

    Alex_997TT
    Rennteam Master
    Alex_997TT
    Loc: Reading , United Kingdom
    Posts: 3320, Gallery
    Registered on: Nov 20, 2005
    Reply to: Carlos from SpainM

    Re: New Windsheild - Installation Difficulty

    Interesting - so replacement windscreens are not as good as factory ones...

    I was thinking when my stone chips became more in number then I would change out the windscreen for a new one.  Now I am thinking I should just live with the chips for as long as possible!!


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    May 6, 2009 4:56:53 PM

    RCA
    Rennteam Administrator
    RC
    Loc: Rennteam HQ , Germany
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    Registered on: Mar 26, 2002
    Reply to: easy_rider911

    Re: New Windsheild - Installation Difficulty

    easy_rider911:

    At the factory, it's one of the few tasks that is done by robot. It needs very precise placement and pressure. Carlos from Spain had some stone chips in the past and has some useful experiences that he could share with you about this subject.

    Right. If the job at the dealership is done right however, there shouldn't be any problems. The "job" requires somebody who knows what he's doing and somebody who is slow and not too fast. Smiley It is also important to leave the car at least one day unused if possible (of course AFTER the windshield has been installed).


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    RC (Germany) - Rennteam Editor 997 Turbo, Cayenne Turbo S, BMW M3 Cab DKG, Mini Cooper S JCW

    May 6, 2009 5:04:39 PM

    fritz
    Rennteam VIP
    fritz
    Loc: BaWü , Germany
    Posts: 10248, Gallery
    Registered on: Jul 23, 2003
    Reply to: Alex_997TT

    Re: New Windsheild - Installation Difficulty

    Alex_997TT:

    Interesting - so replacement windscreens are not as good as factory ones...

    The actual windshields will be the same as the factory ones, but the after-market installation may not be as good. Modern windshields are bonded into the body shell, not just glued into a rubber seal which is in turn glued to the body flange. The bonding is only as good as the care taken in the installation process. The thinner layer of sealant may also not be as tolerant of irregularities on the flange surface as old-tech rubber seals were. A car generally is left to stand overnight to allow the bond to cure before it is loaded.

    PS: RC got there first with pretty much the same message. Smiley 


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    fritz

    May 6, 2009 6:43:33 PM

    Carlos from SpainM
    Rennteam Moderator
    Carlos from Spain
    Loc: Spain. , Spain
    Posts: 21156, Gallery
    Registered on: Feb 9, 2003
    Reply to: Alex_997TT

    Re: New Windsheild - Installation Difficulty

    Alex_997TT:

    Interesting - so replacement windscreens are not as good as factory ones...

    I was thinking when my stone chips became more in number then I would change out the windscreen for a new one.  Now I am thinking I should just live with the chips for as long as possible!!

    My advice would be to hold off as long as posible with the factory one, I wish I did.


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    May 12, 2009 3:27:01 PM

    Strategy_Dude
    Junior
    Strategy_Dude
    Loc: Utah, USA , United States
    Posts: 55, Gallery
    Registered on: Mar 4, 2007
    Reply to: Carlos from SpainM

    Re: New Windsheild - Installation Difficulty

    Car's at the dealership today ... keeping my fingers crossed they can get this right!  I was looking closely at the seal vs. new cars coming from the factory, and clearly I can see in the top corners how the windsheild is sitting above the rubber seal.  Definitely not installed properly.


    --

    2007 Porsche 997TT

    2008 Jeep Wrangler Rubicon

    2007 Lexus GX470

    May 17, 2009 4:08:44 PM

    MMD
    Rennteam VIP
    MMD
    Loc: usa
    Posts: 9652, Gallery
    Registered on: Dec 16, 2004
    Reply to: Strategy_Dude

    Re: New Windsheild - Installation Difficulty

     Sorry to chime in so late. I had mine done (had a tiny stone chip/crack upon delivery).

    It was explained to me that the replacement windshield comes assembled with it's gasket in place. 

    All they have to do is add a bead of sealant, connect the antenna and drop it in.

    Might be that your guy is screwing up by re-using glass and adding the gasketing himself? Maybe not completely removing sealant? 

    My point: the way things are set up, the replacement unit is complete so should simply drop in for foolproof results

    Smiley

    --
    2007 997 Turbo

    May 17, 2009 4:52:21 PM

    Strategy_Dude
    Junior
    Strategy_Dude
    Loc: Utah, USA , United States
    Posts: 55, Gallery
    Registered on: Mar 4, 2007
    Reply to: MMD

    Re: New Windsheild - Installation Difficulty

    Now THAT's interesting.  I wonder if my dealership may also be going on the cheap and trying to reuse the existing gasket.  Did a Porsche employee or dealership tell you this?  If so, can you pass along their contact information so I can speak with them?  I think i'm getting the run-around by my dealership since they don't want to go through the hassle of removing the windshield and risk cracking it.

    The car came back from the dealership ... still have the same problem.

    ARGGGH ... this is so anoying!  Normally the Dave Strong Porsche dealership up in Salt Lake are really good .. but this is bordering on stupidity!


    --

    2007 Porsche 997TT

    2008 Jeep Wrangler Rubicon

    2007 Lexus GX470

    May 18, 2009 1:12:32 AM

    MMD
    Rennteam VIP
    MMD
    Loc: usa
    Posts: 9652, Gallery
    Registered on: Dec 16, 2004
    Reply to: Strategy_Dude

    Re: New Windsheild - Installation Difficulty

    Strategy_Dude:

    Now THAT's interesting.  I wonder if my dealership may also be going on the cheap and trying to reuse the existing gasket.  Did a Porsche employee or dealership tell you this?  If so, can you pass along their contact information so I can speak with them?  I think i'm getting the run-around by my dealership since they don't want to go through the hassle of removing the windshield and risk cracking it.

    The car came back from the dealership ... still have the same problem.

    ARGGGH ... this is so anoying!  Normally the Dave Strong Porsche dealership up in Salt Lake are really good .. but this is bordering on stupidity!

    Okay SD, I remember asking about seal placement (I'm a stickler about precision and surmised that was the most obvious visual detail which could look bad) and, I can swear the service guy told me they do _not_ apply the gasket by hand, "It comes assembled from the factory."

    Nevertheless, here's the official service manual windshield instructions which describe the seal as hand-applied. Maybe the factory realized they're better suited to applying the seal and did not update thje service manual instructions? Maybe my guy BS'd me?

    At bottom is info about where they got this service manual technical procedure. Your guys should be able to get this whole windscreen replacement section also, which if I remember correctly is about 20 (!) pages long.

    IMO, Tell them to show you the service manual procedure in full and explain (i.e."demand" Smiley) you will review with them each step they did or did  not take. Of course they will have to justify any divergence from the manual.

    Good luck buddy, that's about all I know about the seal. 

     

    Also I'm fairly certain they can remove your currently badly-installed windshield without damage. The have (or should have) the very specialized electric cutting/knife tool (also described in service manual, even has a part number) which cuts thru the sealant without damaging anything.

     

    better windscreen.jpg

     

     

     

     

     


    --
    2007 997 Turbo

    May 18, 2009 1:37:33 AM

    Strategy_Dude
    Junior
    Strategy_Dude
    Loc: Utah, USA , United States
    Posts: 55, Gallery
    Registered on: Mar 4, 2007
    Reply to: MMD

    Re: New Windsheild - Installation Difficulty

    Thanks MMD... really helpful.


    SD.


    --

    2007 Porsche 997TT

    2008 Jeep Wrangler Rubicon

    2007 Lexus GX470

    May 18, 2009 4:12:25 PM

    MMD
    Rennteam VIP
    MMD
    Loc: usa
    Posts: 9652, Gallery
    Registered on: Dec 16, 2004
    Reply to: Strategy_Dude

    Re: New Windsheild - Installation Difficulty

    Strategy_Dude:

    Thanks MMD... really helpful.


    SD.

    MY pleasure. Hoping the story gets a happy ending. Smiley


    --
    2007 997 Turbo

    Jun 7, 2009 12:30:43 AM

    Strategy_Dude
    Junior
    Strategy_Dude
    Loc: Utah, USA , United States
    Posts: 55, Gallery
    Registered on: Mar 4, 2007
    Reply to: MMD

    Re: New Windsheild - Installation Difficulty

    Thanks for all the advice everybody. 

     

    I had a master technician look at the installation, and he said the original wasn't installed right.  He actually said the windsheild looked warped.  So, another one was ordered, installed a few days ago.  Now the windsheild is sitting properly and no wind noise.


    --

    2007 Porsche 997TT

    2008 Jeep Wrangler Rubicon

    2007 Lexus GX470

    Jun 8, 2009 4:40:53 PM

    MMD
    Rennteam VIP
    MMD
    Loc: usa
    Posts: 9652, Gallery
    Registered on: Dec 16, 2004
    Reply to: Strategy_Dude

    Re: New Windsheild - Installation Difficulty

    Strategy_Dude:

    Thanks for all the advice everybody. 

     

    I had a master technician look at the installation, and he said the original wasn't installed right.  He actually said the windsheild looked warped.  So, another one was ordered, installed a few days ago.  Now the windsheild is sitting properly and no wind noise.

    Good..., after a few weeks it'll all be forgotten. Smiley

    The other thing? Next time maybe take it to a premier windshield specialty shop in your area. The places which replace Ferrari, or Benteley, or other expensive cars with fussy owners: THAT's worth looking into. Why? When you think about it Porsche dealers probably don't do that many windshields (not exactly a simple procedure either) to get perfect results every time.  Smiley

    Anyway, I'm glad you're done with it!


    --
    2007 997 Turbo

    Jun 8, 2009 5:35:44 PM

    fritz
    Rennteam VIP
    fritz
    Loc: BaWü , Germany
    Posts: 10248, Gallery
    Registered on: Jul 23, 2003
    Reply to: Strategy_Dude

    Re: New Windsheild - Installation Difficulty

    Strategy_Dude:

    Thanks for all the advice everybody. 

    I had a master technician look at the installation, and he said the original wasn't installed right.  He actually said the windsheild looked warped.  So, another one was ordered, installed a few days ago.  Now the windsheild is sitting properly and no wind noise.

    Good to hear!   Smiley


    --

    fritz

    Jun 9, 2009 5:38:01 AM

    Dan L
    Expert
    Dan L
    Loc: Santa Barbara, CA , United States
    Posts: 1957, Gallery
    Registered on: Jan 2, 2006
    Reply to: fritz

    Re: New Windsheild - Installation Difficulty

    Much of the body rigidity is attributed to the important windscreen seal, so it has to be done correctly. 

     

    Years ago we found in the United States that replacement glass always seemed to fair better than original glass, perhaps the glass is tougher, who knows?  I would think that with the complexity of these windscreens (with various antennas) that there is no 'aftermarket' windscreen even available at this time.


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    997S Hard-top Cabrio 6-spd 3AS 'Turquoise' Natural Brown, PCCB
     
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