[DeTomaso] Rear Window Cracked.....again

[Will Kooiman]

I hit my window a few times with a ratchet over the years, and never
cracked it.

I removed it when I had the car painted, and I polished the roughness out
before reinstalling it.  As I pushed the final time to get it in it
popped.  I was pushing with the palm of my hand, and I wasn¹t pushing that
hard.

So, I had a new one made with safety glass, and this one went in with no
drama.

That¹s my story anyway.

On 7/25/16, 10:33 PM, "DeTomaso on behalf of michael frazier"
<detomaso-bounces at server.detomasolist.com on behalf of
red3644 at hotmail.com> wrote:

>   I've replaced a couple of rear windows over the years with glass and
>   plastic units.
>
>   None were badly cracked but just had stars, probably from a misguided
>   ratchet or
>
>   some other tool.  I'm looking at the pinch weld area of 6643 right
>   now.  It's double
>
>   walled and a little wavy but it's hard to imagine it being so out of
>   shape that it would
>
>   cause a hot spot / pressure point severe enough to break the glass
>   through the gasket.
>
>   I'd still put a straight edge on it and flatten it out as well as I
>   could.  I doubt body flex
>
>   caused it since the glass and gasket actually float a bit in the
>   opening...unless you're
>
>   using some kind of rigid adhesives...then all bets are off.  They
>   should go in quite easily
>
>   if sized correctly.   I gave Mike Drew a tracing of a late model window
>   some time ago FWIW.
>
>
>   Michael Frazier
>
>
>   From: [1]Rob Dumoulin
>   Sent: Monday, July 25, 2016 8:08 PM
>   To: [2]Matt Wells
>   Cc: [3]Pantera Mail List
>   Subject: Re: [DeTomaso] Rear Window Cracked.....again
>
>
>   I did not think that the glass was adding structural integrity, but
>   instead
>   thought somehow that the car being on stands two weeks, which may have
>   been
>   closer to three weeks, tweaked the opening just enough that it the
>   glass
>   were a little off it might have been snug on install then cracked
>   during
>   driving.
>   I did not inspect the glass prior to install and was not able to be
>   there
>   when it was done, but my glass guy is a stand up talented guy and will
>   redo
>   it for free. I plan to pass any advice from you guys to him.
>   You are correct that the 5 point harness bar is installed, and it was
>   not
>   installed when the first glass was put in. However, the bar is a
>   perfect
>   fit and has no extra pressure added to make the bolts thread. If
>   anything,
>   I would think it would add support.
>   On Jul 25, 2016 5:40 PM, "Matt" <nwpantera at gmail.com> wrote:
>   > "Is it possible that the car being on jack stands could have tweaked
>   the
>   > car enough to cause
>   >    the glass to bind as it re-tweaked to its natural state?"
>   > "Does anybody think it has anything to do with it being on jack
>   stands
>   >    prior to glass entry"
>   >
>   > Rob what is probably nagging your subconsciousness is the idea that
>   the
>   > rear glass is a part vital to the structural integrity of the car,
>   and
>   > without it being in place the shape will change during jacking.
>   > I'm no engineer but that idea sounds absurd and you should eliminate
>   it
>   > from your trouble shooting thought process.
>   > Sure they flex some, but rather the idea of an imperfection in the
>   seating
>   > like Mike D. said sounds more plausible.
>   > Is the opening entirely straight sitting on the ground? Is there
>   extreme
>   > heat near the suspect cracked areas? Was the glass properly de-burred
>   of
>   > all sharp edges? Do you have a seat belt bar mounted to the firewall
>   that
>   > might be preloading it?
>   > Just shots in the dark.
>   > Best of luck,
>   > Matt
>   > 3584
>   >
>   >
>
>References
>
>   1. mailto:rob at dumoulins.net
>   2. mailto:nwpantera at gmail.com
>   3. mailto:detomaso at server.detomasolist.com
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