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#1 |
![]() Join Date: Aug 2015
Location: Pittsburgh, PA
Posts: 152
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Looking around the car with a flashlight and I notice this crack at the bottom driver's side corner of my original windshield. Almost invisible without the flashlight at the right angle.
I guess the good news is that it begins and ends at an edge so it won't travel but what would cause a crack at this location? Thanks, Roger
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Roger 1990 ZR-1 #2699 Black on Black 15,000 miles Full-time secondaries, 4.10 gears, C-beam plates, ported top end |
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#2 |
![]() Join Date: Aug 2006
Location: McLean, VA
Posts: 3,713
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Was the car jacked up recently? Possibly with the roof off?
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#3 |
![]() Join Date: Aug 2015
Location: Pittsburgh, PA
Posts: 152
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Yes, I've had it jacked up a dozen times over the last year. Plastic roof is always on. I'm usually careful to use 2 jacks at the front jack points (1 on each side) lifting a little at a time alternating each side until I can get my larger jack under the front cross member. I've heard the forum mention how jacking unequally can cause cracked windshields so I have been careful.
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Roger 1990 ZR-1 #2699 Black on Black 15,000 miles Full-time secondaries, 4.10 gears, C-beam plates, ported top end |
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#4 |
![]() Join Date: Feb 2012
Location: Ledyard,CT
Posts: 8,144
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Been doing wheel stander starts?
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#5 |
![]() Join Date: Aug 2015
Location: Pittsburgh, PA
Posts: 152
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Haha, I wish that was the cause!
I need a few more ponies for that. What makes me mad is that I have taken great care not to lift either side unevenly for exactly this reason.
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Roger 1990 ZR-1 #2699 Black on Black 15,000 miles Full-time secondaries, 4.10 gears, C-beam plates, ported top end |
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#6 | |
![]() Join Date: Feb 2012
Location: Ledyard,CT
Posts: 8,144
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I have both tops; I leave my hardtop in all the time. |
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#7 |
Join Date: Jul 2016
Location: Boone County, Indiana
Posts: 14
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I have never taken the top off....PO never took the top off....
When I first posted here, I mentioned that I understood there was a lot of flex and a potential windshield damage issue when jacking unevenly... ....I remember a difference of opinion among posters here.. |
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#8 |
Join Date: Dec 2012
Location: Tampa, FL
Posts: 118
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I thought that using the under the rocker stiffening bars help this? Installed them on mine and adjusted. Addressing the flexing body is a far better mod than any other for this car. On a brighter side, will insurance cover it? I have the classic car insurance and the windshield repair is 100% reimbursable. Then you can get one of those fancy hi-tech reproduction windshields for free.
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#9 | |
Join Date: Oct 2004
Location: Folsom CA
Posts: 1,648
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I did leave the top on when I put her up on very tall jackstands when I replaced the transmission. That being said, no cracks. Heck, I don't have any delam either. Go figure. Having driven girlfriend with her top off, I can tell you that you don't want to go much past 125 or so. I'll mess up your comb-over. It gets really noisy and the buffeting is pretty severe. Rolling up the side windows helps, but doesn't cure it. 'Crabs
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TomC '90ZR1 #792 Honorary Pirate [B]If it ain't FUN, you're doing something terribly WRONG. [/B] |
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#10 |
Join Date: Aug 2016
Location: Spring Hill, FL
Posts: 127
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your insurance probably wont cover it unless it obstructs your vision ! dont call them, get a hammer ! a rock fell off a truck on the highway................! I saw a company on ebay that sells reproduction zr1 windshields , about 2600.00
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