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

Engine vibration

Thread Tools
 
Search this Thread
 
Old Nov 1, 2004 | 08:31 PM
  #1  
74droptop's Avatar
74droptop
Thread Starter
Pro
 
Joined: Nov 1999
Posts: 509
Likes: 0
From: lantana,fl.
Default Engine vibration

I think my harmonic balancer went out tonight. The car vibrates really bad even when in neutral. It seems to run ok what kind of shake should I be feeling if the balancer has slipped. If I checked the timing shouldn't the mark be off?
Reply
Old Nov 1, 2004 | 09:47 PM
  #2  
bobs77vet's Avatar
bobs77vet
Race Director
20 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Sep 2004
Posts: 11,874
Likes: 263
From: Arlington Va Current ride 04 vert, previous vettes: 69 vert, 77 resto mod
Default

are you sure you don't have a vacuum leak?
Reply
Old Nov 2, 2004 | 10:43 PM
  #3  
Solid LT1's Avatar
Solid LT1
Le Mans Master
10 Year Member
 
Joined: Dec 2003
Posts: 5,727
Likes: 38
From: Fremont CA
Default

There can be other causes of your problem, I would think a cracked crankshaft, loose flywheel bolts, torque convertor/input shaft problems could also be the cause of your problem. Start looking and listening, Good Luck!
Reply
Old Nov 3, 2004 | 05:03 AM
  #4  
SanDiegoPaul's Avatar
SanDiegoPaul
Race Director
Supporting Lifetime
 
Joined: Sep 2002
Posts: 10,362
Likes: 5
From: San Diego - Deep Within The State of CONFUSION!
Default

Originally Posted by 74droptop
I think my harmonic balancer went out tonight. The car vibrates really bad even when in neutral. It seems to run ok what kind of shake should I be feeling if the balancer has slipped. If I checked the timing shouldn't the mark be off?
Yes you should be able to tell with a timing light, if you can't see it visually. Car auto or stick? If it's an automagic, then check to see if a weight has flown off the torque convertor, and/or that the convertor is tight on the flex plate.

Make sure that it's not an engine misfire such as a dead hole caused by a bad plug wire or plug. Dist cap/rotor can cause same.
Reply

Get notified of new replies

To Engine vibration





All times are GMT -4. The time now is 07:30 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