Having problems with windshield upgrade to 964 style.

[philipguziec]

Okay, my body guy has painted the car and is ordering parts to install the windshield. If I have the 15 mm pinch weld flange instead of the 10 mm flange, I'm going to go for it with the 964 windshield.

The car is a couple of hours away. Can anyone explain what reference point the 10mm and 15 mm measurements refer to? Is that the top/outside or inside of the flange. Measured from the bottom of a curve or the top? I could use some help on exactly how to make the measurement.

Thanks for all of the help.

[Ryce Stallings]

The flange is perpendicular to the window opening, The measurement is the width of the flange, from the body to the outside of the flange itself. You should just determine which flange you have by the serial number of the car.

For what it's worth, if your not a purist I gave up on the putting a 964 windshield in my 1977 car. I actually installed a 993 glue in windshield and it fits great.

My car lives out side in Florida nd I didn't want any leaks. For sure the 993 conversion will never leak, is flush with the body for better aero and stiffens the car up.

[philipguziec]

Wow, super. I'm an engineering purist, not a originality purist. Better aero and the added stiffness of the glass is great. I had no idea that a 993 would fit or work. So, I need a 993 windshield, glued in, and a 993 seal, correct?

[fly4val]

I'm wondering about the 993 also....

[eimkeith]

2 seals, inner and outer. You can do the 993 rear also, as well as the quarter window seals from the 993 which will flush out your quarters.

Couple all this with shaving the rain gutter and you'll have a fairly slick 911, aside from the door glass recess. Of course, you should do the RUF/935 aero mirrors then, also...

[philipguziec]

Pelican only lists one seal for the 964 and 993. How does this work differently so it fits? The windshield glues in place, and then the seal wedges in around it? Is it a different sized glass that just fits?

Sorry for all the questions, but this sounds like a great solution.

[fly4val]

Phil?

[philipguziec]

993 front and rear--How is the glass and install for the rear different? Do I need new glass. Does the 993 glass have heating elements like mine?

Two seals for the front, huh? I wonder why I can't find them provided by our host.

The quarter glass won't work, I've backdated to opening front and rear quarter windows (something old, something new).

[Ryce Stallings]

There are two front seals. The inner one goes in place over the flange first. You then take presicely the correct amount of urethane windshield glue and extrude it in the space next to the firts seal. This will become clear when your standing there with the windshield. The reason for the correct amount of goop will become evident if you put to much because you will see it on the inside of your car after the windshield has been pressed into place. The next step is to place the glass. It must be centered correctly to get the outer trim to be correct. Once it has dried the outer trim clips into a groove in the windshield plastic surround that comes with the windshiels.

That said, I did this install myself but you need to research this untill your comfortable doing it. The glue is very tuff stuff. It's a one time only process that required a knife and steel balls to undo.

[Kroggers]

I like the 993 idea. Ryce, do you have any pics?

[diverdan]

Tried to do it the right way. Bought what is suppossed to be a 964 windshield for my 92 Turbo coupe. Put on the 994 seal and dang the windshield is way too small. Go figure!

Diverdan

[Ryce Stallings]

The windsheild looks like this.

I just installed a 964 rear window and seal. I can tell you for sure the SC rear window is about a 1/2" smaller top to bottom than the 964 and the 964 seal will not work with the SC glass.

I have a question. Who says a 993 rear quarter window will not fit an SC? Others ahve posted that it will. Who knows what?

[Ryce Stallings]

[fly4val]

Wow....that really looks great....something I will have to seriously consider for my '88 once I start working again....awesomwe thread, thanks everyone...so far!

[philipguziec]

My body guy just called to tell me the 993 window guys showed up and tried to install the glass, and there wasn't enough flange to glue it in. Ryce, did you use 993 glass, or just a 993 seal and glue with earlier style glass? Your fit looks great. What year is your car?

[Ryce Stallings]

993 glass in a 1977 911.

Post a picture of the inside of the windsheild. The reason I asked this is that I intalled a used 993 windshield and shaved away what I thought was the old urethane glue from the inside. This is the only thing that might be different from your installation. Gilbert at Vertex in Miami has done this install several time and it seems to work fine. Did your installer put the inside seal on the flange first? This seal moves the windsheild away from the body a little and helps the fit.

[Walko]

so will a 964 screen and seal fit a 76 911

[philipguziec]

Actually, after talking to him again, it sounds like the install will work fine. He is just unfamiliar with newer style windshields, and the glass guy he is working with has not done a newer Porsche (middle of central Illinois).

As he describes it, the seal covers the entire flange, but there is a taper on the seal towards the outer edge that makes a V space. So, in effect, the windshield will be glued to the sides of the windshield opening, not directly to the flange, and the glue will contact both the underside and the sides of the windshield. Does this sound correct?

[SCHNELE]

Subscribed.

[eimkeith]

that is correct! Trim headliner away from sides of windshield opening, if necessary to bond the windshield to the body directly.