Aarrgh! crack in my windshield! - ZR-1 Net Registry Forums

BlackZR1 · 10-16-2016

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

secondchance · 10-16-2016

Was the car jacked up recently? Possibly with the roof off?

BlackZR1 · 10-16-2016

Quote:

Originally Posted by secondchance

Was the car jacked up recently? Possibly with the roof off?

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.

BigJohn · 10-17-2016

Been doing wheel stander starts?

BlackZR1 · 10-17-2016

Quote:

Originally Posted by BigJohn

Been doing wheel stander starts?

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.

BigJohn · 10-17-2016

Quote:

Originally Posted by BlackZR1

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.

Yeah a cracked windshield really sucks.
I have both tops; I leave my hardtop in all the time.

Ryan Chappel · 10-17-2016

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..

Blownrunner · 10-20-2016

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.

BlackZR1 · 10-20-2016

Quote:

Originally Posted by Blownrunner

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.

You are probably correct about insurance coverage. The picture I posted was while shining a flashlight at just the right angle to make the crack visible. In normal lighting it is invisible unless you are looking for it very closely. It is also down in the corner in the dark tint framed area so I'm not going to worry about it. The glass is perfect in every other way, no other chips and no delamination. Plus I risk damaging the trim that others have cautioned about. It just really pi$$es me off that it occurred while I've been so careful about jacking the car up and down evenly.
I would think some of the uneven roads and driveways or changing a tire with the factory jack lifting a single front tire off the ground would have flexed the chassis more than anything I would have done.
I should probably put the hardtop on instead of the plastic one for some extra rigidity.

tccrab · 10-21-2016

Quote:

Originally Posted by Ryan Chappel

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..

I've driven "Girlfriend" with targa top out, jacked her up with the top out, and jacked her up with the top on.
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

10-16-2016	#2
secondchance Join Date: Aug 2006 Location: McLean, VA Posts: 3,702	Re: Aarrgh! crack in my windshield! Was the car jacked up recently? Possibly with the roof off?

10-17-2016	#4
BigJohn Join Date: Feb 2012 Location: Ledyard,CT Posts: 7,975	Re: Aarrgh! crack in my windshield! Been doing wheel stander starts?

10-17-2016	#7
Ryan Chappel Join Date: Jul 2016 Location: Boone County, Indiana Posts: 14	Re: Aarrgh! crack in my windshield! 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..

10-20-2016	#8
Blownrunner Join Date: Dec 2012 Location: Tampa, FL Posts: 118	Re: Aarrgh! crack in my windshield! 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.