C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

92 c4 damper removal

Thread Tools
 
Search this Thread
 
Old Mar 14, 2009 | 08:07 PM
  #1  
bee674's Avatar
bee674
Thread Starter
Intermediate
10 Year Member
 
Joined: Aug 2008
Posts: 36
Likes: 1
Default 92 c4 damper removal

Replacing opti, having trouble removing damper. Removed 3 bolts to hub,(center crank bolt still installed),used pb blaster, lightly tapped damper,(rotated 1/2 turn and tapped again,did this 5 or so times) without any movement. Afraid to hit too hard and damage damper. Will the kent-moore j 39046 remove it in this tight area? Any other ideas? Thanks.
Reply
Old Mar 14, 2009 | 08:52 PM
  #2  
STL94LT1's Avatar
STL94LT1
Race Director
20 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Jan 2002
Posts: 12,261
Likes: 85
From: O'Fallon Missouri
Default

No, the Kent-Moore tool is for the hub R&R. Get under the car,get something somewhat soft like a piece of wood and give it a few hard whacks forward!! It will come off.
Reply
Old Mar 14, 2009 | 09:04 PM
  #3  
MikeC4's Avatar
MikeC4
Melting Slicks
 
Joined: Oct 2004
Posts: 2,510
Likes: 4
From: Austin Texas
Default

But make sure that you put the piece of wood on the inside portion of the pully/balancer, as they are a 2 piece design held together by a large rubber gasket. If you pound the outside of the balancer, you will distort the rubber gasket and have a wobbly balancer. Then you will have destroyed it and have to replace it. Hit it on the inside and no damage will occur. You can give it some good hefty whacks using a hand sledge. Rotate the crank after each 2 or 3 whacks. It will come off.




Last edited by MikeC4; Mar 14, 2009 at 10:00 PM.
Reply
Old Mar 15, 2009 | 12:35 PM
  #4  
bee674's Avatar
bee674
Thread Starter
Intermediate
10 Year Member
 
Joined: Aug 2008
Posts: 36
Likes: 1
Default

I,ll try that from underside, will let you know how it goes. Thanks for the advice.
Reply
Old Mar 15, 2009 | 01:10 PM
  #5  
Demonic85's Avatar
Demonic85
Team Owner
 
Joined: Feb 2006
Posts: 24,460
Likes: 7
From: sw Ohio
Default

Use a puller, it threads into the three holes and gently pushes it out without damaging anything and its easy to boot. They're cheap and easy to find at any autoparts store, maybe someone close by will let you borrow theirs.
Reply
Old Mar 15, 2009 | 01:16 PM
  #6  
Randy93's Avatar
Randy93
Melting Slicks
 
Joined: Feb 2005
Posts: 2,135
Likes: 0
From: Sebastian Florida
St. Jude Donor '06
Default

Use paint and mark where the dampner is and the crankshaft. Also, use a hammer and hit around the center of the dampner. That will help break the seal, you can also leave the belt on and tap the key.

Good luck!!
Reply
Old Mar 15, 2009 | 04:55 PM
  #7  
5abivt's Avatar
5abivt
Safety Car
20 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2002
Posts: 4,659
Likes: 82
From: Toronto ontario
Default

You dont need a puller or anything. Loosen the bolts so theres a slight gap between the head of the bolt and the damper and go fire the car up for 2 seconds. the vibration will loosen it right up. then just loosen the bolts and slide it off
Reply
Old Mar 16, 2009 | 08:52 PM
  #8  
bee674's Avatar
bee674
Thread Starter
Intermediate
10 Year Member
 
Joined: Aug 2008
Posts: 36
Likes: 1
Default

I got damper off from under car with wood and hammer on inner part of damper...took some good blows to break it loose. Thanks guys for your advice. I marked damper before removing to reference when assembling, but it looks like there is an arrow cast into damper and into hub for alignment. Is this correct?
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-1

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-2

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

 Joe Kucinski
story-3

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

 Verdad Gallardo
story-4

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

 Joe Kucinski
story-5

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

 Verdad Gallardo
story-6

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-7

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

 Michael S. Palmer
story-8

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

 Joe Kucinski
story-9

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

 Michael S. Palmer
Old Mar 16, 2009 | 09:38 PM
  #9  
STL94LT1's Avatar
STL94LT1
Race Director
20 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Jan 2002
Posts: 12,261
Likes: 85
From: O'Fallon Missouri
Default

It will only go back on one way.
Reply
Old Mar 16, 2009 | 09:55 PM
  #10  
bee674's Avatar
bee674
Thread Starter
Intermediate
10 Year Member
 
Joined: Aug 2008
Posts: 36
Likes: 1
Default

The damper is not keyed to hub, so it looks like it will go on 3 different ways,(3 bolts holding damper to hub) if not referenced when removed.
Reply
Old Mar 16, 2009 | 09:58 PM
  #11  
STL94LT1's Avatar
STL94LT1
Race Director
20 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Jan 2002
Posts: 12,261
Likes: 85
From: O'Fallon Missouri
Default

Nope, just one way. The bolt holes are not evenly spaced.
Reply
Old Mar 16, 2009 | 10:37 PM
  #12  
Randy93's Avatar
Randy93
Melting Slicks
 
Joined: Feb 2005
Posts: 2,135
Likes: 0
From: Sebastian Florida
St. Jude Donor '06
Default

Originally Posted by STL94LT1
Nope, just one way. The bolt holes are not evenly spaced.
No, the dampner is evenly spaced. Check the FSM, it will tell you, at least on LT1's.
Reply
Old Mar 16, 2009 | 10:57 PM
  #13  
PLRX's Avatar
PLRX
Team Owner
 
Joined: Aug 2005
Posts: 34,988
Likes: 515
From: Riverside County Southern California
Co-winner 2020 C4 of the Year - Modified
2018 Corvette of Year Finalist
2017 C4 of Year
2016 C7 of Year Finalist
St. Jude Donor '09 thru '20
Default

three letters...TDC

Mark it with liquid paper or silver sharpie
Reply
Old Mar 16, 2009 | 11:39 PM
  #14  
MikeC4's Avatar
MikeC4
Melting Slicks
 
Joined: Oct 2004
Posts: 2,510
Likes: 4
From: Austin Texas
Default

Originally Posted by bee674
I got damper off from under car with wood and hammer on inner part of damper...took some good blows to break it loose. Thanks guys for your advice. I marked damper before removing to reference when assembling, but it looks like there is an arrow cast into damper and into hub for alignment. Is this correct?
You are correct, align the arrow on the pully/balancer to the raised bump or "arrow" on the hub as seen in attached pic. Be sure to put antiseize on the inside perimeter of the pully/balancer for future owner.



Also, I have read a lot of confilicting advice above. The LT1 Hub is NOT keyed, period. The 3 attaching holes in the pully/balancer form a perfect triangle, so it can be put on incorrectly.

Last edited by MikeC4; Mar 16, 2009 at 11:45 PM.
Reply
Old Mar 16, 2009 | 11:46 PM
  #15  
STL94LT1's Avatar
STL94LT1
Race Director
20 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Jan 2002
Posts: 12,261
Likes: 85
From: O'Fallon Missouri
Default

Originally Posted by Randy93
No, the dampner is evenly spaced. Check the FSM, it will tell you, at least on LT1's.
OK, then the hub is not. Because the dampner will only go back on one way.

Anyone will to put their money where there mouth is saying it will go on more than one way?
Reply
Old Mar 16, 2009 | 11:58 PM
  #16  
Redeasysport's Avatar
Redeasysport
Le Mans Master
 
Joined: Dec 2004
Posts: 5,789
Likes: 8
From: Myrtle Beach SC
St. Jude Donor '05-'06
Default

Originally Posted by Randy93
No, the dampner is evenly spaced. Check the FSM, it will tell you, at least on LT1's.
No it will only fit one way the holes ARE offset
Reply
Old Mar 17, 2009 | 12:00 AM
  #17  
MikeC4's Avatar
MikeC4
Melting Slicks
 
Joined: Oct 2004
Posts: 2,510
Likes: 4
From: Austin Texas
Default

Originally Posted by STL94LT1
OK, then the hub is not. Because the dampner will only go back on one way.

Anyone will to put their money where there mouth is saying it will go on more than one way?
I WILL !!

(I just won't guarantee that I can get all 3 bolts threaded)

Reply
Old Mar 17, 2009 | 12:00 AM
  #18  
Redeasysport's Avatar
Redeasysport
Le Mans Master
 
Joined: Dec 2004
Posts: 5,789
Likes: 8
From: Myrtle Beach SC
St. Jude Donor '05-'06
Default

Originally Posted by STL94LT1
OK, then the hub is not. Because the dampner will only go back on one way.

Anyone will to put their money where there mouth is saying it will go on more than one way?
You and I are correct
Reply

Get notified of new replies

To 92 c4 damper removal





All times are GMT -4. The time now is 10:43 PM.

story-0
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-1
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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