C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Door glass torque specs?

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Old Aug 17, 2004 | 04:48 PM
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Default Door glass torque specs?

I'm replacing the door glass in my '86 and was wondering if there is a torque spec for tightening the threaded mounts to the glass. I made a 3/8" drive wrench from a disc brake piston tool to work with the odd glass fasteners. Thanks!
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Old Aug 17, 2004 | 05:18 PM
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gee, not to the best of my knowledge...

according to the Helms book for my gf's 87, no. There are no torque specs.

tighten until it breaks, back off a quarter turn.
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Old Aug 17, 2004 | 06:49 PM
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Thanks! I must get a Helms manual someday.

>> tighten until it breaks, back off a quarter turn.
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Old Aug 17, 2004 | 08:15 PM
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Originally Posted by 1986Z51
Thanks! I must get a Helms manual someday.

>> tighten until it breaks, back off a quarter turn.
thought you might like that.
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Old Aug 18, 2004 | 04:46 AM
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I thought I saw torque specs in my '96 Helms. Pretty low values if I recall.

If you overtighten, the door glass will literally explode into a million pieces.
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Old Aug 18, 2004 | 11:03 AM
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Originally Posted by JasonL
I thought I saw torque specs in my '96 Helms. Pretty low values if I recall.

If you overtighten, the door glass will literally explode into a million pieces.
Yup. Exploded my passenger side door glass last weekend.

It was some insanely low number, like (see below), for the encore I just tightened the drivers side until it wasn't loose, I'm sure I'll be back into the door before all three work their way off!

If I go home for lunch I'll look it up for ya...

Last edited by JCD; Aug 18, 2004 at 01:57 PM. Reason: removed wrong guesses...
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Old Aug 18, 2004 | 02:06 PM
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And now I notice this isn't what you were asking about... oh well.

my 1993 dealer manual says:
7.75 N*m
69 lb in

That's for the three window regulator nuts AND the guide/stop nut. Be very sure that the guide/stop is properly seated in the glass before you tighten it, if it's crooked it will shatter the entire window (trust me).

And don't put the window on the ground.

Last edited by JCD; Aug 18, 2004 at 02:35 PM. Reason: Do I have to give one?
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