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

More seat issues

Thread Tools
 
Search this Thread
 
Old Sep 26, 2016 | 11:23 AM
  #1  
croaker's Avatar
croaker
Thread Starter
Melting Slicks
15 Year Member
 
Joined: May 2006
Posts: 2,364
Likes: 103
From: Centerville Louisiana
Default More seat issues


More to my seat issue. This caused my seat issue the top stop got hooked under the bottom so it wouldn't flip forward leading to the button getting broke. Anyone dealt with this? Remedies? Thanks in advance for input.
Reply
Old Sep 26, 2016 | 11:32 AM
  #2  
Alan 71's Avatar
Alan 71
Team Owner
15 Year Member
Active Streak: 120 Days
Community Influencer
Top Answer: 5
 
Joined: Sep 2006
Posts: 31,109
Likes: 4,170
From: Westminster Maryland
Default

Hi c,
It seems to me that there could be several causes:
Are the hinge bolts in good condition… could they be causing the seat back to be misaligned with the seat bottom?
Are the 'welded in place' nuts on both the seat back and seat base in good condition… have any of them been broken loose from the frame?
Are all 4 of the 'seat bumper bolts' in good condition? Have any of their threaded shafts been bent from being perpendicular to the round pad?
???
Regards,
Alan

Last edited by Alan 71; Sep 26, 2016 at 11:35 AM.
Reply
Old Sep 26, 2016 | 12:43 PM
  #3  
Peterbuilt's Avatar
Peterbuilt
Le Mans Master
15 Year Member
 
Joined: Aug 2006
Posts: 7,411
Likes: 1,549
From: mount holly NC
2025 c3 ('74-'82) of the Year Finalist - Unmodified
2019 C3 of Year Finalist (appearance mods)
Default

It could be that the bottom seat frame is broken and you need a reinforcement part like this one:

http://www.parts123.com/parts123/yb....5Z5Z50000036b#

And you need the rubber bumpers.
Reply
Old Sep 26, 2016 | 01:34 PM
  #4  
croaker's Avatar
croaker
Thread Starter
Melting Slicks
15 Year Member
 
Joined: May 2006
Posts: 2,364
Likes: 103
From: Centerville Louisiana
Default

I put a reinforcement in when seat were redone. I threaded the top bumpers all the way in the right was a little unlevel. The remains of the rubber pads were there but, torn up. It looks like the side hinges need to go toward the back.
Reply
Old Sep 26, 2016 | 05:09 PM
  #5  
Peterbuilt's Avatar
Peterbuilt
Le Mans Master
15 Year Member
 
Joined: Aug 2006
Posts: 7,411
Likes: 1,549
From: mount holly NC
2025 c3 ('74-'82) of the Year Finalist - Unmodified
2019 C3 of Year Finalist (appearance mods)
Default

Originally Posted by croaker
I put a reinforcement in when seat were redone. I threaded the top bumpers all the way in the right was a little unlevel. The remains of the rubber pads were there but, torn up. It looks like the side hinges need to go toward the back.
Since you already have the bottom reinforcement that's good. Is the seat back solid?
Is there any slack if you try to move the top adjuster?

I tried to get a photo to see how my adjusters come together but there wasn't much room.


If all else fails try Alan 71's suggestions.
Reply
Old Sep 26, 2016 | 07:15 PM
  #6  
DUB's Avatar
DUB
Race Director
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2009
Posts: 19,294
Likes: 2,753
From: Charlotte NC
Default

I can say this...



When I recover seats..I oftentimes have to tweak the frames back together so I get the upper and lower stop bolts to contact as much as possible. The photo above has not been tweaked.....but as you can see it is very close to being perfect. And what I find it is the hinges and the rear seat frame being all messed up due to people throwing themselves into the seat..and over time..the frame begins to move.

DUB
Reply
Old Sep 26, 2016 | 11:42 PM
  #7  
croaker's Avatar
croaker
Thread Starter
Melting Slicks
15 Year Member
 
Joined: May 2006
Posts: 2,364
Likes: 103
From: Centerville Louisiana
Default

Dub are you tweaking the side hinges some way?
Reply
Old Sep 27, 2016 | 03:57 PM
  #8  
7T1vette's Avatar
7T1vette
Team Owner
15 Year Member
Community Builder
Community Influencer
Top Answer: 5
 
Joined: Jan 2006
Posts: 37,637
Likes: 3,112
From: Crossville TN
Default

Those two studs are not badly misaligned. But, you don't have a rubber cushion on the upper stud. (see photos above) If you install the cushion, there is no way those two studs can get 'hooked'.

If the seat back sits too 'vertical' when the cushion is installed, cut it down so that it just sticks up a bit from the stud head. Or, you could install a different bolt/pad in the seat back so that is has a different contact point with the lower seat stud.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-1

2027 Corvette vs The World: Every Model vs Closest Competitor

 Joe Kucinski
story-2

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
story-3

5 MOST and 5 LEAST Popular Corvette Model Years in History!

 Joe Kucinski
story-4

2027 Corvette Buyer's Guide: Everything You Need to Know!

 Joe Kucinski
story-5

10 Things C8 Corvette Owners Hate (But Won't Tell You)

 Joe Kucinski
story-6

10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

 Brett Foote
story-7

Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

 Joe Kucinski
story-8

Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!

 Michael S. Palmer
story-9

5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!

 Joe Kucinski
Old Sep 27, 2016 | 06:01 PM
  #9  
DUB's Avatar
DUB
Race Director
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2009
Posts: 19,294
Likes: 2,753
From: Charlotte NC
Default

Originally Posted by croaker
Dub are you tweaking the side hinges some way?
YES...and also the steel frame due to its curve has been effected by people throwing themselves in the seat. So their lower back is always making contact and the lower seat back frame.

And if you also take into account the seat bottom frame..it is often times cracked or split and needs to be repaired....BUT...generally the seat bottom frame does not need to be re-worked due to the lower stops thread into the welded in nuts...so their dimension is a 'given'...and you adjust the rear seat back to them.

In my photo it does not show that the two stops are very good from the 'front to back' aspect. But in the photo you can see the 'side to side' is off.

When I get the covers off...and do whatever repairs I need to do...I do 'play around' with the rear frame to get these stops to align correctly. I am just picky that way. I have not come across a set of seats that I can not correct these bumpers and stops.

I have numerous photos of when I recently did seat covers that were 1972 ORIGINALS and thought of posting them in a thread of doing set covers.....but with so many videos on doing it... I wonder if it is worth it.

And if you need an estimated time to get the frame tweaked back into correct position..I can have an EASY 1/2 hour + in that....so it just depends. Because some I get in are real;ly screwed up and barely touching.

DUB
Reply
Old Sep 27, 2016 | 09:03 PM
  #10  
croaker's Avatar
croaker
Thread Starter
Melting Slicks
15 Year Member
 
Joined: May 2006
Posts: 2,364
Likes: 103
From: Centerville Louisiana
Default

Originally Posted by 7T1vette
Those two studs are not badly misaligned. But, you don't have a rubber cushion on the upper stud. (see photos above) If you install the cushion, there is no way those two studs can get 'hooked'.

If the seat back sits too 'vertical' when the cushion is installed, cut it down so that it just sticks up a bit from the stud head. Or, you could install a different bolt/pad in the seat back so that is has a different contact point with the lower seat stud.
The rubber pads were there but all torn up. They were hooked together when I took the seat out. The top pad under the bottom which was preventing it to fold up. The picture makes it look better then what it actually is according to alignment. I've reinstalled the seat and going to order some parts plus the pads. My wife kinda fessed up saying "I think I know when that happened"
Reply
Old Sep 27, 2016 | 09:05 PM
  #11  
croaker's Avatar
croaker
Thread Starter
Melting Slicks
15 Year Member
 
Joined: May 2006
Posts: 2,364
Likes: 103
From: Centerville Louisiana
Default

Yes Dub the bottom ones seem to be very stable in their position so the top frame must have some sort of twist.
Reply
Old Sep 28, 2016 | 05:32 PM
  #12  
DUB's Avatar
DUB
Race Director
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2009
Posts: 19,294
Likes: 2,753
From: Charlotte NC
Default

Originally Posted by croaker
Yes Dub the bottom ones seem to be very stable in their position so the top frame must have some sort of twist.


If you get into tweaking on the seat back frame...and look at it...you will see there are a lot of ways this frame can move when it has been 'loved on'.

Take a close look on where the track that holds your seat release mechanism. I oftentimes see the beginnings of the metal beginning to tear near the two small screws that secure the track to the seat back. It is somewhat flimsy there.

DUB
Reply

Get notified of new replies

To More seat issues





All times are GMT -4. The time now is 04:28 PM.

story-0
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-1
2027 Corvette vs The World: Every Model vs Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-20 17:58:41


VIEW MORE
story-2
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-3
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-4
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE
story-5
10 Things C8 Corvette Owners Hate (But Won't Tell You)

Slideshow: 10 things C8 Corvette owners hate, but won't tell you.

By Joe Kucinski | 2026-04-01 18:36:07


VIEW MORE
story-6
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

Slideshow: Should you add one of these incredible Corvettes to your garage?

By Brett Foote | 2026-04-01 18:14:05


VIEW MORE
story-7
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

Slideshow: Every Corvette Grand Sport explained

By Joe Kucinski | 2026-03-26 07:13:44


VIEW MORE
story-8
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!

Slideshow: Breaking down the 2027 Grand Sport, Grand Sport X, Stingray, and LS6 V8.

By Michael S. Palmer | 2026-03-26 13:48:45


VIEW MORE
story-9
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!

Slideshow: 5 reasons bad drivers crash sports cars & 5 ways to avoid a costly shame!

By Joe Kucinski | 2026-03-25 16:32:55


VIEW MORE