1971 Windshield Base Pictures needed.
Thread Starter
Team Owner
Joined: Jun 2001
Posts: 23,363
Likes: 1,059
From: Virginia USA
1971 Windshield Base Pictures needed.
I just scheduled my windshield replacement for next Monday but I need some pictures of the base of the glass. In my haste to remove the old one I took the two small clips or spacers (whatever you want to call them) off but did not mark right or left etc. If anyone could open the wiper door and snap a couple of pictures these clips are about 3 inches from where the A pillar is. Here is what I am talking about.
These are the "spacers". As you can see they are a bit different.
Here is where they go on the car. The screw hole is visible.
I got my buddy in Ft. Worth (petty44) to look at his '75 but is was completely different that what I have. I guess when GM discontinued the wiper door system they changed the glass/installation too.
Thanks in advance
John
These are the "spacers". As you can see they are a bit different.
Here is where they go on the car. The screw hole is visible.
I got my buddy in Ft. Worth (petty44) to look at his '75 but is was completely different that what I have. I guess when GM discontinued the wiper door system they changed the glass/installation too.
Thanks in advance
John
Drifting
Joined: Nov 2002
Posts: 1,676
Likes: 197
From: Loveland, CO
I am not sure about the clips, but something very important is the depth of the glass seating in the birdcage.
My glass installer said he knew what he was doing, but now my chrome trim sits about 1/4 higher than the glass surface. Be sure and get the rubber spacers that hold the glass off the metal, or the seating tape, both of which are about 1/4 to 3/8 inch thick. The urethane sealer is fine on top of these, but you need something to hold the glass up somewhat from the metal.
Ralph.
My glass installer said he knew what he was doing, but now my chrome trim sits about 1/4 higher than the glass surface. Be sure and get the rubber spacers that hold the glass off the metal, or the seating tape, both of which are about 1/4 to 3/8 inch thick. The urethane sealer is fine on top of these, but you need something to hold the glass up somewhat from the metal.
Ralph.
Thread Starter
Team Owner
Joined: Jun 2001
Posts: 23,363
Likes: 1,059
From: Virginia USA
Thanks Ralph,
I knew about the "height" of the glass so that the SS trim will not have a gap. I do have some 3M glass installation adheasive if we need it. I will be here when they install it so we can check the fit of the SS trim before he is finished.
I knew about the "height" of the glass so that the SS trim will not have a gap. I do have some 3M glass installation adheasive if we need it. I will be here when they install it so we can check the fit of the SS trim before he is finished.
Le Mans Master
Joined: Jul 2006
Posts: 8,117
Likes: 104
From: charlotte north carolina
i cracked the new windshield in my 70 when i started the wipers. the crank arm on the motor just touched the bottom edge of the glass extension that protrudes into the wiper transmission area. had all the spacers in place , also.
jeff
jeff
Team Owner
Joined: Sep 2006
Posts: 31,172
Likes: 4,250
From: Westminster Maryland
John,
There is just 1 part number for the spacer so there isn't a right and left. Someone has bent 1 of your pair. The ones on my 71 look like the one on the left in your picture.
Regards,
Alan
There is just 1 part number for the spacer so there isn't a right and left. Someone has bent 1 of your pair. The ones on my 71 look like the one on the left in your picture.
Regards,
Alan
Limping across the line
Joined: Oct 2002
Posts: 5,299
Likes: 109
From: Peoria Az
I am not sure about the clips, but something very important is the depth of the glass seating in the birdcage.
My glass installer said he knew what he was doing, but now my chrome trim sits about 1/4 higher than the glass surface. Be sure and get the rubber spacers that hold the glass off the metal, or the seating tape, both of which are about 1/4 to 3/8 inch thick. The urethane sealer is fine on top of these, but you need something to hold the glass up somewhat from the metal.
Ralph.
My glass installer said he knew what he was doing, but now my chrome trim sits about 1/4 higher than the glass surface. Be sure and get the rubber spacers that hold the glass off the metal, or the seating tape, both of which are about 1/4 to 3/8 inch thick. The urethane sealer is fine on top of these, but you need something to hold the glass up somewhat from the metal.
Ralph.
Newer cars the fixed glass is part of the safety/structural system of the car. So the NHTSA recommended that glass replacement even for older cars follow current standards.
As for the windshield trim sitting too high above the glass that is from the clips used to retain the trim, I believe your problem could be solved by going with less tall clips
Thread Starter
Team Owner
Joined: Jun 2001
Posts: 23,363
Likes: 1,059
From: Virginia USA
Thanks
Drifting
Joined: Nov 2002
Posts: 1,676
Likes: 197
From: Loveland, CO
Phil, that is almost exactly what my installer told me. I said that would be fine if the adhesive bed used was set thick enough to get the windshield up to the proper height. Guess what?
As far as I know there are only one type of windshield clips available. And I don't think shorter ones would solve the problem.
Thanks, Ralph.
As far as I know there are only one type of windshield clips available. And I don't think shorter ones would solve the problem.
Thanks, Ralph.
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Melting Slicks
Joined: Nov 2001
Posts: 2,668
Likes: 43
From: Eastern US XX
If you're referring to the Butyl tape that used to be used to affix the glass to the frame, It is no longer used when installing windshields. Currently the urethane that comes in a tube(like caulk) and applied with a sealant gun is what is used. I asked when my last windshield was being replaced and was told the Butyl doesnt secure the glass as effectively.
Newer cars the fixed glass is part of the safety/structural system of the car. So the NHTSA recommended that glass replacement even for older cars follow current standards.
Newer cars the fixed glass is part of the safety/structural system of the car. So the NHTSA recommended that glass replacement even for older cars follow current standards.
As for the windshield trim sitting too high above the glass that is from the clips used to retain the trim, I believe your problem could be solved by going with less tall clips
Team Owner
Joined: Sep 2006
Posts: 31,172
Likes: 4,250
From: Westminster Maryland
John,
The clips on my 71 were in good condition. The top 25% had been dipped in liquid plastic to give some cushion where the bottom of the windshield rests on the clip. I left the screw for the clip just a little lose so I could pivot the clip so it was really parallel with the bottom edge of the windshield. After the windshield was in, I then tightened the screws for the clips. I re-did the coating on the clips using that liquid plastic that comes in a small can from the hardware store. This is the same coating that's on some of the clips for the vacuum hoses and electrical harnesses in the engine compartment.
Regards,
Alan
The clips on my 71 were in good condition. The top 25% had been dipped in liquid plastic to give some cushion where the bottom of the windshield rests on the clip. I left the screw for the clip just a little lose so I could pivot the clip so it was really parallel with the bottom edge of the windshield. After the windshield was in, I then tightened the screws for the clips. I re-did the coating on the clips using that liquid plastic that comes in a small can from the hardware store. This is the same coating that's on some of the clips for the vacuum hoses and electrical harnesses in the engine compartment.
Regards,
Alan
Thread Starter
Team Owner
Joined: Jun 2001
Posts: 23,363
Likes: 1,059
From: Virginia USA
John,
The clips on my 71 were in good condition. The top 25% had been dipped in liquid plastic to give some cushion where the bottom of the windshield rests on the clip. I left the screw for the clip just a little lose so I could pivot the clip so it was really parallel with the bottom edge of the windshield. After the windshield was in, I then tightened the screws for the clips. I re-did the coating on the clips using that liquid plastic that comes in a small can from the hardware store. This is the same coating that's on some of the clips for the vacuum hoses and electrical harnesses in the engine compartment.
Regards,
Alan
The clips on my 71 were in good condition. The top 25% had been dipped in liquid plastic to give some cushion where the bottom of the windshield rests on the clip. I left the screw for the clip just a little lose so I could pivot the clip so it was really parallel with the bottom edge of the windshield. After the windshield was in, I then tightened the screws for the clips. I re-did the coating on the clips using that liquid plastic that comes in a small can from the hardware store. This is the same coating that's on some of the clips for the vacuum hoses and electrical harnesses in the engine compartment.
Regards,
Alan
One other ? - Do they go on with the bent piece facing up or down - down would be my first picture and up would be the second picture (damn I knew I should have taken picture before I started
).
Limping across the line
Joined: Oct 2002
Posts: 5,299
Likes: 109
From: Peoria Az
This is why, as in the writeup I did, BOTH are used. The Urethane assures the adhesion strength, and the butyl tape provides the correct spacing to keep the windshield at the correct height relative to the molding. If you don't use the butyl tape, then you MUST use spacing material to hold the windshield out while the Urethane sets - otherwise, the windshield will "sink" and you will end up with poor spacing (gaps) between the glass and the molding.
Not true. There is only one size of correct clips that hold the top molding in place. The side molding is held on with screws. You either get the glass in correctly or not relative to the molding.
Not true. There is only one size of correct clips that hold the top molding in place. The side molding is held on with screws. You either get the glass in correctly or not relative to the molding.
Thanks
Phil M
Le Mans Master
Joined: Jan 2006
Posts: 8,246
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From: Watkins Glen NY
Team Owner
Joined: Sep 2006
Posts: 31,172
Likes: 4,250
From: Westminster Maryland
John,
The 'dipped' part of the clip is UP. The bottom edge of the windshield sits on it. It prevents the windshield from 'sliding down' into the wiper well. I'm sorry I don't have a picture to post. Good Luck tomorrow!
Regards,
Alan
PS: Remember the middle of the bottom of the windshield sits on the rubber strip that's glued to the windshield wiper stop bracket. UPC1, Sheet D6. This helps position the windshield properly, too.
The 'dipped' part of the clip is UP. The bottom edge of the windshield sits on it. It prevents the windshield from 'sliding down' into the wiper well. I'm sorry I don't have a picture to post. Good Luck tomorrow!
Regards,
Alan
PS: Remember the middle of the bottom of the windshield sits on the rubber strip that's glued to the windshield wiper stop bracket. UPC1, Sheet D6. This helps position the windshield properly, too.
Last edited by Alan 71; Feb 24, 2008 at 04:51 PM.
Burning Brakes
Joined: Aug 2004
Posts: 856
Likes: 2
From: Tyler Texas
http://www.corvette-restoration.com/
This is a great 1971 resto page. Lots of good photos. May have what you need.
This is a great 1971 resto page. Lots of good photos. May have what you need.
Thread Starter
Team Owner
Joined: Jun 2001
Posts: 23,363
Likes: 1,059
From: Virginia USA
Thanks Alan I understand
Patrick Good link - I can see them in the wiper door section just not very well but I got an idea of how.
Thanks Again - I'll post some picture later.
Patrick Good link - I can see them in the wiper door section just not very well but I got an idea of how.
Thanks Again - I'll post some picture later.
Drifting
Joined: Aug 2005
Posts: 1,289
Likes: 3
From: East Waterboro Maine
This is probably a bit late but.... I agree it looks like the clip on the right has been bent, they should both be the same. They are mounted to the birdgae with the rounded portion of the "U" facing out (as shown in the top photo). I dug through my old photos and cropped the two images below out of them. They're kind of hard to see but they're the best I've got.
Good luck.
Good luck.
Last edited by Maine Vette; Feb 28, 2008 at 08:57 PM.
