Rear Window Replacement - ZR-1 Net Registry Forums

Scrrem · 05-27-2009

OK...found new glass to replace my existing rear window but have these funny round fasteners that attach the glass to the hinge plate. Would like to use existing hinge plate, so how do you remove these fasteners? Is there some special GM tool that is required?
Thanks
Rich

-=Jeff=- · 05-27-2009

That top piece is bonded to the glass, IMHO you are better of painting the new piece on the hatch to match

WVZR-1 · 05-27-2009

The bond of the glass and the hinge on a 15 year old or more assembly probably isn't very secure any longer anyway. The glass on my '90 wasn't and I looked at a '94 not long ago that wasn't either.

You need a "purpose built" spanner socket or you need to be creative. Year one sells one they call a "replica" that is the correct size. Eastwood might. There's such a thing as an "adjustable spanner" also but I don't recall them doing that small a "span"!

If you really need to use your hinge plate you can be creative! Use an inexpensive socket of the correct diameter and if you've access to a grinder you'll have a "specialty/purpose created" spanner socket.

An older automotve glass shop would have the correct spanner or an older body man surely would. There's different sizes, you might want to measure center to center the two holes! If your bond is weak or broken you can ask the glass shop for a recommendation of bonding agent to secure it again.

I've seen a pair of 90* "bent nose" pliers used! Not me!

Scrrem · 06-01-2009

Quote:

Originally Posted by -=Jeff=-

That top piece is bonded to the glass, IMHO you are better of painting the new piece on the hatch to match

Well, got my wrench today and got the spanner nuts off and YEP the hinge plate is bonded to the glass and on to stay!!! Looks like I bought a piece of glass for nothing. It would be cheaper to try and remove the window tint than have the hinge plate re-painted

Rich

kirkstingray · 06-01-2009

Hi Rich you seem to have forgotten that I am a glass man by trade. You have everything you need right here in your own backyard just ask.

Kirk

Z51JEFF · 06-03-2009

I talked to Gordon Killebrew years ago about removing the hinge plate to repaint it on a car I had and was told its next to impossible to get the adhesive to soften up to remove the plate.I would be interested in a spare hinge plate if somebody has one laying around.

-=Jeff=- · 05-27-2009

this one?
http://www.yearone.com/serverfiles/f...archid=1968843

-=Jeff=- · 05-27-2009

Also what bonding material needs to be used?

WVZR-1 · 05-28-2009

That's the one I meant BUT I've never used. I just read my post again and I shouldn't have used is correct, I should have mentioned "likely is"!! I referenced that one so the OP had an idea of what he might be looking for.

Using that image if a person couldn't put their "hands on" one at a glass shop or body shop they could fabricate one. The correct diameter socket, a grinder or Dremel and a person would be ready quickly.

I don't recall which product we used for an adhesive. It was likely a DURAMIX product or a FUSOR product by Lord. I don't believe it was windshield urethane adhesive but I don't know why that wouldn't be a good repair or maybe even the desired! I do believe it was a "semi-rigid" product. I did that nearly six years ago.

Scrrem · 05-28-2009

As usual, you guys are the BOM! There is an existing hinge plate attached to the glass now, but it's got some dings, I would prefer to reuse mine. I will purchase the tool and see how tough it is to remove the existing plate. If I run into problems, I may play it safe and just let a glass shop do it. Thanks guys!!!!
Rich

05-27-2009	#2
-=Jeff=- Join Date: Jul 2007 Location: Bartlett, IL Posts: 7,169	Re: Rear Window Replacement That top piece is bonded to the glass, IMHO you are better of painting the new piece on the hatch to match __________________ 1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978

05-27-2009	#3
WVZR-1 Join Date: Oct 2004 Posts: 1,890	Re: Rear Window Replacement The bond of the glass and the hinge on a 15 year old or more assembly probably isn't very secure any longer anyway. The glass on my '90 wasn't and I looked at a '94 not long ago that wasn't either. You need a "purpose built" spanner socket or you need to be creative. Year one sells one they call a "replica" that is the correct size. Eastwood might. There's such a thing as an "adjustable spanner" also but I don't recall them doing that small a "span"! If you really need to use your hinge plate you can be creative! Use an inexpensive socket of the correct diameter and if you've access to a grinder you'll have a "specialty/purpose created" spanner socket. An older automotve glass shop would have the correct spanner or an older body man surely would. There's different sizes, you might want to measure center to center the two holes! If your bond is weak or broken you can ask the glass shop for a recommendation of bonding agent to secure it again. I've seen a pair of 90* "bent nose" pliers used! Not me!

06-01-2009	#5
kirkstingray Join Date: Oct 2008 Location: riverdale maryland Posts: 123	Re: Rear Window Replacement Hi Rich you seem to have forgotten that I am a glass man by trade. You have everything you need right here in your own backyard just ask. Kirk

06-03-2009	#6
Z51JEFF Join Date: Dec 2007 Location: Fremont,Ca Posts: 3,079	Re: Rear Window Replacement I talked to Gordon Killebrew years ago about removing the hinge plate to repaint it on a car I had and was told its next to impossible to get the adhesive to soften up to remove the plate.I would be interested in a spare hinge plate if somebody has one laying around.

05-27-2009	#7
-=Jeff=- Join Date: Jul 2007 Location: Bartlett, IL Posts: 7,169	Re: Rear Window Replacement this one? http://www.yearone.com/serverfiles/f...archid=1968843 __________________ 1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978

05-27-2009	#8
-=Jeff=- Join Date: Jul 2007 Location: Bartlett, IL Posts: 7,169	Re: Rear Window Replacement Also what bonding material needs to be used? __________________ 1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978

05-28-2009	#9
WVZR-1 Join Date: Oct 2004 Posts: 1,890	Re: Rear Window Replacement That's the one I meant BUT I've never used. I just read my post again and I shouldn't have used is correct, I should have mentioned "likely is"!! I referenced that one so the OP had an idea of what he might be looking for. Using that image if a person couldn't put their "hands on" one at a glass shop or body shop they could fabricate one. The correct diameter socket, a grinder or Dremel and a person would be ready quickly. I don't recall which product we used for an adhesive. It was likely a DURAMIX product or a FUSOR product by Lord. I don't believe it was windshield urethane adhesive but I don't know why that wouldn't be a good repair or maybe even the desired! I do believe it was a "semi-rigid" product. I did that nearly six years ago.

05-28-2009	#10
Scrrem Join Date: Feb 2009 Location: Alexandria, Virginia Posts: 1,467	Re: Rear Window Replacement As usual, you guys are the BOM! There is an existing hinge plate attached to the glass now, but it's got some dings, I would prefer to reuse mine. I will purchase the tool and see how tough it is to remove the existing plate. If I run into problems, I may play it safe and just let a glass shop do it. Thanks guys!!!! Rich __________________ 1990 Bright Red Coupe #608 380 Stroker, Ported Heads/Intake/Housings/TB Haibeck Secondary Delete Chip / Pete's Cams George Braml Intake / FIC Injectors Coated SW Headers / Corsa Bill Boudreau B/B ZF6 / Viper 4.10 gears Ron Davis Radiator Pioneer AVIC-Z140BH NAV Fikse FM5's 285 / 335 / C6 Brakes WAZOO Member