C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

T-top screw removal

Thread Tools
 
Search this Thread
 
Old 01-03-2020, 04:56 PM
  #1  
gnutz
Intermediate
Thread Starter
 
gnutz's Avatar
 
Member Since: Nov 2019
Location: mission viejo, CA
Posts: 28
Received 10 Likes on 9 Posts
Default T-top screw removal

I have a 72 coupe.
I have ordered the weatherstripping from Willcox and waiting for its arrival.
I have watched various videos on replacing the t top weatherstrip.

My question is; are there any other possible suggestions to remove the 4 screws. I have 2 removed and I have 2 screws that feel like they are turning the screw/nut assembly....the nut is turning within its fiberglass cage area. I have not yet removed the entire stripping. I have only worked on the screws at this time. Only on the drivers top also.

I’m looking for any suggestions to remove the other screws. I can reglue/epoxy new nuts, but need to remove the old stuff first.

Thanks in advance for your input.

gnutz
Old 01-04-2020, 05:00 PM
  #2  
Corvettestan2
Cruising
 
Corvettestan2's Avatar
 
Member Since: Jan 2020
Location: Bluffton, SC
Posts: 15
Likes: 0
Received 4 Likes on 1 Post
Default Drill it

I have a 1980 and I had to drill the heads off of a few screws that were not coming out any other way. I think my tops are a slightly different style though. After I got the screws out I used a plastic scraper to remove the old gasket. I put the adhesive and popped in the plastic clips but also used a bit of painters tape to hold the gaskets while it dried. One of the most satisfying repairs because you don't have to worry about the leaks anymore. Good luck!
Old 01-04-2020, 06:59 PM
  #3  
gnutz
Intermediate
Thread Starter
 
gnutz's Avatar
 
Member Since: Nov 2019
Location: mission viejo, CA
Posts: 28
Received 10 Likes on 9 Posts
Default

Thanks Corvettestan2, I appreciate your input. I figured that may be an option and I’m glad to hear that it does work.

How did you attach the nut after you removed the old screw/nut. I was thinking that epoxy may work.

thanks again for your help.
Old 01-05-2020, 08:54 AM
  #4  
Corvettestan2
Cruising
 
Corvettestan2's Avatar
 
Member Since: Jan 2020
Location: Bluffton, SC
Posts: 15
Likes: 0
Received 4 Likes on 1 Post
Default Different style

I think mine are a slightly different style as mine were screws and not bolts with nuts. The same concept should work as far as being able to drill the heads off though. I like your idea of using epoxy to hold the but part long enough to tighten it. I have read about people doing something similar when repairing the 4th body mount at the back of the Corvette where the back of the bolt is hard to access.
Old 01-05-2020, 09:41 AM
  #5  
gnutz
Intermediate
Thread Starter
 
gnutz's Avatar
 
Member Since: Nov 2019
Location: mission viejo, CA
Posts: 28
Received 10 Likes on 9 Posts
Default

Thanks again for your reply.
i will see what’s in the area after I remove the screw heads etc.

i will take pics of the discovery process and progress.

thanks.
Old 01-05-2020, 03:22 PM
  #6  
Roy W.
Racer
Pro Mechanic
 
Roy W.'s Avatar
 
Member Since: May 2019
Location: St. Augustine, FL
Posts: 311
Received 90 Likes on 75 Posts
Default

When I did the t-tops on my '81, I don't believe there were any nuts in the frame, only fine thread screws. Replacement stainless steel screws (set of 8, part number 847094) are available from Ecklers.
Old 01-05-2020, 05:24 PM
  #7  
gnutz
Intermediate
Thread Starter
 
gnutz's Avatar
 
Member Since: Nov 2019
Location: mission viejo, CA
Posts: 28
Received 10 Likes on 9 Posts
Default

Thanks Roy.
i’m not sure what the configuration looks like at this point.
i am only going on info from several videos that I’ve watched and from the Assembly Manual.
i haven’t had any input from a 68/74 owner.
i’ve already bought new stainless screws.

i appreciate your note and input.

gnutz
Old 01-06-2020, 07:45 PM
  #8  
OldCarBum
Race Director
 
OldCarBum's Avatar
 
Member Since: Mar 2016
Location: Napa California
Posts: 10,442
Received 4,693 Likes on 2,936 Posts
Default

There can't be very much torque on those screws and nuts.
Are they in an area where you could slip a small wedge, like a soft wood door shim, between the body and trim to put pressure against the nut to hold it in place while turning the screw?
Just a thought?????????
Old 01-06-2020, 09:13 PM
  #9  
gnutz
Intermediate
Thread Starter
 
gnutz's Avatar
 
Member Since: Nov 2019
Location: mission viejo, CA
Posts: 28
Received 10 Likes on 9 Posts
Default

I think that originally, there was not much torque on the screws.
the screw/nut have been in place for 45+ years and have rusted/corroded
together. they’re in a blind enclosed area that is not accessible without cutting
a hole into the top....can’t/won’t do that.
as soon as I receive the replacement pieces, I will remove the worn pieces and
see what the area looks like in more detail.
i’m open to helpful hints and ideas.

more to come as a follow up.

thanks for your input.

gnutz

Get notified of new replies

To T-top screw removal




Quick Reply: T-top screw removal



All times are GMT -4. The time now is 10:49 AM.