Notices
C5 General General C5 Corvette and C5 Z06 Discussion not covered in Tech

Harmonic Balancer Came Out Again

Thread Tools
 
Search this Thread
 
Old Jul 19, 2015 | 12:50 PM
  #1  
GetShifty_Vette's Avatar
GetShifty_Vette
Thread Starter
Intermediate
10 Year Member
All Eyes On Me
 
Joined: Oct 2012
Posts: 28
Likes: 8
From: Phoenix, AZ
Default Harmonic Balancer Came Out Again

So I have a 99 C5 with 114k miles currently. This will be the 3rd time I've had to change the stock OEM harmonic balancer due to it moving a 1/2 inch forward. I have read that it might be worth it to go and buy a 10-25% underdrive pulley to keep this from happening again, but wouldn't that make all the accessories run slower? Any input would be great!
Reply
Old Jul 19, 2015 | 03:10 PM
  #2  
cor28vettes's Avatar
cor28vettes
Race Director
15 Year Member
Veteran: Army
Liked
Community Favorite
 
Joined: Sep 2006
Posts: 11,150
Likes: 1,135
From: Santa Rosa Beach FL
Default

You DO NOT want to put a stock HB back on. Will send you a PM for more info.
Reply
Old Jul 19, 2015 | 03:19 PM
  #3  
Vetteman Jack's Avatar
Vetteman Jack
Administrator
Supporting Lifetime
Veteran: Navy
St. Jude 20 Year Donor
25 Year Member
Veteran: Reserves
 
Joined: Mar 2001
Posts: 367,452
Likes: 24,619
From: In a parallel universe. Currently own 2014 Stingray Coupe.
C7 of the Year - Modified Finalist 2021
MO Events Coordinator
St. Jude Co-Organizer
St. Jude Donor '03 thru '25
NCM Sinkhole Donor
CI 5, 8 & 11 Veteran
Default

Originally Posted by 6GenVettes
You DO NOT want to put a stock HB back on. Will send you a PM for more info.
Why not post the info here - it might help others besides the OP.
Reply
Old Jul 19, 2015 | 03:19 PM
  #4  
StingrayRebel's Avatar
StingrayRebel
Acct Suspended APR 2026 by request
 
Joined: Dec 2010
Posts: 10,367
Likes: 1,272
2020 Corvette of the Year Finalist (performance mods)
C5 of Year Winner (performance mods) 2019
Default

Originally Posted by 6GenVettes
You DO NOT want to put a stock HB back on. Will send you a PM for more info.
it sounds like it's time to go for an aftermarker unit... powerbond makes a good factory replacement as well as jegs/summit
Reply
Old Jul 19, 2015 | 04:47 PM
  #5  
cor28vettes's Avatar
cor28vettes
Race Director
15 Year Member
Veteran: Army
Liked
Community Favorite
 
Joined: Sep 2006
Posts: 11,150
Likes: 1,135
From: Santa Rosa Beach FL
Default

Originally Posted by Vetteman Jack
Why not post the info here - it might help others besides the OP.
I sent him this all-inclusive C5 thread (pg 1-3) which includes HB discussions
http://forums.corvetteforum.com/show....php?t=1249213
HB threads @ post 33 page 2

Last edited by cor28vettes; Jul 19, 2015 at 04:50 PM.
Reply
Old Jul 19, 2015 | 05:27 PM
  #6  
GetShifty_Vette's Avatar
GetShifty_Vette
Thread Starter
Intermediate
10 Year Member
All Eyes On Me
 
Joined: Oct 2012
Posts: 28
Likes: 8
From: Phoenix, AZ
Default

Thanks guys!
Reply
Old Jul 19, 2015 | 05:39 PM
  #7  
GetShifty_Vette's Avatar
GetShifty_Vette
Thread Starter
Intermediate
10 Year Member
All Eyes On Me
 
Joined: Oct 2012
Posts: 28
Likes: 8
From: Phoenix, AZ
Default

The main thing I need to know is if my completely stock C5 is able to use a 10-25% underdrive with no issues.
Reply
Old Jul 19, 2015 | 09:21 PM
  #8  
reath1's Avatar
reath1
Burning Brakes
Supporting Lifetime
10 Year Member
 
Joined: Dec 2012
Posts: 832
Likes: 14
From: Lake Charles Louisiana
Default

Under drive will work just fine but you can find a good aftermarket balancer, like ATI, that is stock size. Go that route and be done with the issue.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

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

 Michael S. Palmer
story-1

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

 Joe Kucinski
story-2

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

 Michael S. Palmer
story-3

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

 Joe Kucinski
story-4

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
story-5

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

 Joe Kucinski
story-6

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

 Joe Kucinski
story-7

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

 Joe Kucinski
story-8

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

 Brett Foote
story-9

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

 Joe Kucinski
Old Jul 20, 2015 | 07:23 AM
  #9  
leadfoot4's Avatar
leadfoot4
Team Owner
20 Year Member
Active Streak: 60 Days
Active Streak: 90 Days
Community Builder
 
Joined: May 2001
Posts: 87,294
Likes: 1,579
From: Western NY
Default

Originally Posted by reath1
Under drive will work just fine but you can find a good aftermarket balancer, like ATI, that is stock size. Go that route and be done with the issue.





And don't forget to buy an ARP bolt.....
Reply

Get notified of new replies

To Harmonic Balancer Came Out Again





All times are GMT -4. The time now is 10:28 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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