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Topic: T-Top Gaskets

in Forum: C3 Body


T-Top Gaskets

Posted: 6/22/07 7:56pm Message 1 of 7
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Joined: 6/15/2007
Posts: 5
I am somewhat new here. Just purchased a real clean 81. The back was loaded with new parts, my luck! Anyway the car came with two sets of t-tops. One set was a replacement and somewhat newer and the original set whereby one is good and the other is really cracked. Anyway the car came with a set of new rubber gaskets for the t-tops. The gaskets need replacing on the good set. I looked at the older cracked set and see where there are three screws on one of the four sides and the other three sides attach with some notched pins. It also appears that the gaskets (on both sets) are put down with adhesive. Can some one of you nice people tell me how to install, point me to a thread, or give some advice. Thanks and if I need to post this somewhere else, I will do so.

From St. Louis,

Thanks.



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T-Top Gaskets

Posted: 6/23/07 7:53am Message 2 of 7
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Eastern Oklahoma County, OK - USA
Joined: 1/3/2006
Posts: 1560
Vette(s): 1980 Black L48 T-Tops
I can tell you how I did mine.  It isn't NCRS correct, but it worked great for me!

I didn't have inner liners in mine, but I would recommend you take them out if you have them.

After removing all the screws, I took a putty knife (1" blade) and pushed behind the seals to remove them.  If you don't get the pins out, you can push them thru to the back side.  They will fall out easily.  I did have one that I had to use a #1 Phillips to drive out.

Since I have a friend of a friend in the business, I used Kent Automotive products as follows:  Acrysol P/N P60170 Body Solvent, Speedy 500 Adhesive and Cement Remover P/N P60175 and Ultra Stick weatherstrip adhesive P/N 10192.  I used the Speedy 500 first to remove all the old sealer and sticky stuff (technical term).  I then used the Acrysol to clean up the area and as a pretreatment for the adhesive.  NOTE: DO THIS IN A WELL VENTILATED AREA!  BE SURE TO KEEP THE REMOVAL PRODUCTS LOCALIZED TO THE SEAL AREA!  THEY WILL REMOVE PAINT! 

I then test fit the seals without pushing the pins thru the holes, pulled the seal back and spread the adhesive onto the weatherstrip, pushing the pins into their holes.  For the stubborn ones, I used the handle end of a hammer to seat them.  I then replaced the screws.

Once you have the seal on, put the top on the car and leave it for at least 72 hours to let it settle in.  From then on, use as normal.

NOTE: You may have to make some adjustments to your tops as necessary after the seals have seated in.

Hope this helps!  I'm sure someone else has done this and will post their way as well

Good luck!!
dnv2007-06-23 07:55:41


T-Top Gaskets

Posted: 6/23/07 9:27am Message 3 of 7
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North Charleston, SC - USA
Joined: 3/20/2004
Posts: 4176
Vette(s): 1975 L48 AT AC T-top
I did mine last fall and followed the procedure described by dnv. Mine turned out very nice. After they settle in some adjustments will likely be necessary for a proper fit. Good luck.

Scott



T-Top Gaskets

Posted: 6/23/07 11:45am Message 4 of 7
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Posts: 5
Thanks, two questions.  What adjustments did you make.  And....what are the inner liners.  I am a bit confused there....is that what the three screws attach to through the weatherstripping?  I have glass tops. 


T-Top Gaskets

Posted: 6/23/07 1:41pm Message 5 of 7
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Eastern Oklahoma County, OK - USA
Joined: 1/3/2006
Posts: 1560
Vette(s): 1980 Black L48 T-Tops
If you have glass, then you don't have inner liners.  They are only on the fiberglass tops.  Sorry, I should have stated that above.

Where the tops go into the center or "T" rail, into the two pockets, there are most likely shims under the pointy part on the T-Top.  They can be removed or added to draw the tops down in front or back as necessary.

Also, there is an adjustment of the post on the latch that screws up or down and locks with an adjustment nut.  This will draw the top down on the outboard side.



T-Top Gaskets

Posted: 6/23/07 1:50pm Message 6 of 7
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Thanks, that is what I thought....shims and nut.   Great help....I will tackle this next weekend, then on to the doors.

You guys rock!



T-Top Gaskets

Posted: 6/23/07 2:44pm Message 7 of 7
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North Charleston, SC - USA
Joined: 3/20/2004
Posts: 4176
Vette(s): 1975 L48 AT AC T-top
Ecklers has the shims if you need them.

Scott



in Forum: C3 Body


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