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

[Nathan Giles]

I had one made of lexan and used that.

Nathan Giles

> On Jul 29, 2016, at 20:38, Will Kooiman <will.kooiman at gmail.com> wrote:
> 
> 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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