C6 Tech/Performance LS2, LS3, LS7, LS9 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Flywheel issues?

Thread Tools
 
Search this Thread
 
Old Dec 22, 2015 | 12:57 PM
  #1  
Southmsfiveo's Avatar
Southmsfiveo
Thread Starter
Advanced
 
Joined: Nov 2013
Posts: 61
Likes: 5
Default Flywheel issues?

Has anyone had issues with a C6 flywheel? How difficult is the repair? I am mechanically inclined but not familiar with the torque tube set up.

Dealership says Flywheel broken or failing. Estimate is just under $1400.00

The car: 2006 base coupe, no engine mods, A6, 83,000 miles

Symptoms:
2800-3000 rpm a slight vibration begins and continues
3000-3500 rpm noise begins that sounds like a heat shield rattle
I don't know if it goes away at higher rpms.
I have spent 2 months making sure there isn't anything loose to rattle.
The car runs fine as long as I stay below 2800-3000 rpm

I'm going to another dealership for a second opinion. But that will be after new years.
Reply
Old Dec 22, 2015 | 01:03 PM
  #2  
timd38's Avatar
timd38
Race Director
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2005
Posts: 13,592
Likes: 187
From: Hudson WI
NCM Sinkhole Donor
Default

Have to drop the powertrain, bigger job than I want to do.

This thread should hlp.

https://www.corvetteforum.com/forums...ion-4-0-a.html
Reply
Old Dec 22, 2015 | 01:58 PM
  #3  
subfloor@centurytrans's Avatar
subfloor@centurytrans
Supporting Vendor
15 Year Member
Top Answer: 1
Top Answer: 3
Top Answer: 5
 
Joined: Feb 2011
Posts: 3,520
Likes: 880
2024 C6 of the Year Finalist - Modified
2020 Corvette of the Year Finalist (track prepared)
2019 C6 of Year Winner (track prepared)
Default

Originally Posted by Southmsfiveo
Has anyone had issues with a C6 flywheel? How difficult is the repair? I am mechanically inclined but not familiar with the torque tube set up.

Dealership says Flywheel broken or failing. Estimate is just under $1400.00

The car: 2006 base coupe, no engine mods, A6, 83,000 miles

Symptoms:
2800-3000 rpm a slight vibration begins and continues
3000-3500 rpm noise begins that sounds like a heat shield rattle
I don't know if it goes away at higher rpms.
I have spent 2 months making sure there isn't anything loose to rattle.
The car runs fine as long as I stay below 2800-3000 rpm

I'm going to another dealership for a second opinion. But that will be after new years.
There's almost nothing that can actually go wrong with a flywheel on an A6 car as it looks like this:



With that many miles the more likely cause of the problem is the internals of the torque tube have worn out.

You still need to pull everything from the motor back though in order to fix it.
Reply
Old Dec 28, 2015 | 08:53 PM
  #4  
Southmsfiveo's Avatar
Southmsfiveo
Thread Starter
Advanced
 
Joined: Nov 2013
Posts: 61
Likes: 5
Default

Thanks guys for your responses. I'm taking it apart now.
Reply
Old Jan 3, 2016 | 05:51 PM
  #5  
Southmsfiveo's Avatar
Southmsfiveo
Thread Starter
Advanced
 
Joined: Nov 2013
Posts: 61
Likes: 5
Default Not the flex plate, torque tube issue.

Input end of drive shaft wobbles in the torque tube. Coupler banging on the inside of the torque tube.

Not sure how to proceed? Suggestions?
Reply
Old Jan 3, 2016 | 07:28 PM
  #6  
schpenxel's Avatar
schpenxel
Race Director
20 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2004
Posts: 16,667
Likes: 1,209
From: Raleigh, NC
St. Jude Donor '15
Default

Take it apart. You will need some big *** snap ring pliers

A coupler is probably destroyed or something else will become obvious once it is apart.

Last edited by schpenxel; Jan 3, 2016 at 07:29 PM.
Reply
Old Jan 3, 2016 | 07:44 PM
  #7  
Southmsfiveo's Avatar
Southmsfiveo
Thread Starter
Advanced
 
Joined: Nov 2013
Posts: 61
Likes: 5
Default Damage Pics. Best course of action???

Two pics of damage.
What is the best course of action from here?




Reply
Old Jan 3, 2016 | 07:47 PM
  #8  
schpenxel's Avatar
schpenxel
Race Director
20 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2004
Posts: 16,667
Likes: 1,209
From: Raleigh, NC
St. Jude Donor '15
Default

I'm not seeing anything I would consider worth of the description "carnage"

You need to figure out why the coupler was rubbing against the housing though. While it's apart you should replace the couplers and all bearings.

All the bearings in mine were absolutely shot by just over 100K miles.. so I would replace them while you have it apart
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-1

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-2

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-3

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-4

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-5

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-6

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-7

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

 Michael S. Palmer
story-8

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
story-9

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
Old Jan 3, 2016 | 07:51 PM
  #9  
Southmsfiveo's Avatar
Southmsfiveo
Thread Starter
Advanced
 
Joined: Nov 2013
Posts: 61
Likes: 5
Default

What supports the bearing in the end of the housing, where the "O" ring is located?
Reply
Old Jan 3, 2016 | 07:54 PM
  #10  
schpenxel's Avatar
schpenxel
Race Director
20 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2004
Posts: 16,667
Likes: 1,209
From: Raleigh, NC
St. Jude Donor '15
Default

The bearing goes there.

The O ring gives it a little bit of give.. but the bearing goes in that opening

That's why I told you to pull on that shaft and try to pull the bearing into that hole with the o-ring. It looked like it had somehow been pushed out in the video you posted (I'm assuming that was you anyways.. the names are running together right now)
Reply

Get notified of new replies

To Flywheel issues?





All times are GMT -4. The time now is 05:28 AM.

story-0
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-1
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-2
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-3
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-4
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-5
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-6
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-7
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-8
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-9
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