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

Vibration during accelleration

Thread Tools
 
Search this Thread
 
Old Feb 19, 2009 | 11:07 PM
  #1  
Yohon75's Avatar
Yohon75
Thread Starter
Heel & Toe
 
Joined: Sep 2008
Posts: 20
Likes: 0
From: Marion Texas
Default Vibration during accelleration

I recently had a new engine installed, a 350 bored out to a 383. The guy who installed it said that it may be out of time and to bring it back to have him re-check it if I had any problems. I have driven it a few times now and whenever I press the accellerator, it vibrates alot up to 40-45MPH then it will stop and will run normal. From a standstill, when I press the gas pedal it will vibrate as well and will not even break traction. AT cruising speeds when I give it gas, it will hesitate and vibrate as well but will eventually kick in. I took it in today to have a mechanic look at it. He said that it appeared to be in time but from his observation he thought that it could possibly be the harmonic balancer or the flywheel. Does this sound right to anyone? Hope to hear from you all soon.
Reply
Old Feb 20, 2009 | 12:06 AM
  #2  
MotorHead's Avatar
MotorHead
Race Director
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2000
Posts: 17,676
Likes: 201
From: Who says "Nothing is impossible" ? I've been doing nothing for years.
Default

Was the motor properly balanced in the first place ?
Reply
Old Feb 20, 2009 | 01:24 AM
  #3  
IronJen's Avatar
IronJen
Abby Normal
Supporting Lifetime
20 Year Member
Veteran: Marine Corps
Community Builder
Liked
 
Joined: Dec 2001
Posts: 53,446
Likes: 92
From: Press "2" for English
Default

i'm suspicious and don't think we have enough info to make a decent decision. the way i see it, if it's either the balancer or flywheel, the vibration would be the same at a given engine speed regardless of actual speed/gear you're in. is that what you're describing? i would also expect that if something were out of balance that the vibration would get worse as engine speed increased.
i'm leaning toward timing until we get more info.
Reply

Get notified of new replies

To Vibration during accelleration





All times are GMT -4. The time now is 10:22 PM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
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-7
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-8
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-9
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