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

big problem with ATI balancer

Thread Tools
 
Search this Thread
 
Old Jul 21, 2007 | 09:08 PM
  #1  
GS977's Avatar
GS977
Thread Starter
Drifting
20 Year Member
All Eyes On Me
Liked
Loved
 
Joined: May 2005
Posts: 1,258
Likes: 38
From: springtown Texas
Default big problem with ATI balancer

the problem is IT WON'T COME OFF
whats the deal??? how do you get it off. the part # is 917275 for an 96lt4
the 3 12 point 10mm bolts won't come out. after hours of trying i got 1 out. the other 2 just rounded off right away. the T-40 bolts well my T-40 tool broke off in the first one right away also. it didn't even budge. the only bolt i could get out was the 5/8 bolt that holds the ATI to the crank. i ended up trying the old vise grips on the 2 that rounded off and they won't budge just got worse. so i had to cut the heads off of those 2 after there wasn't anything left to grip and the balancer still won't budge. how do i get it off
Reply
Old Jul 22, 2007 | 02:01 PM
  #2  
JAKE's Avatar
JAKE
Le Mans Master
10 Year Member
 
Joined: Feb 2000
Posts: 9,715
Likes: 27
From: Kempner Texas
Default

My 274 calls for a T-40 PLUS bit, not a T-40. Went everywhere trying to find one without success. Ended up ordering one from Summit.

If the PLUS won't loosen them - because of the condition the bolts are now in - you may end up having to drill them. Before doing that, I'd give ATI a call and see what they recommend. I'd be against using heat though; no telling what that would do to the damper's internals.

You can try PB Blaster, but if the bit can't get a GOOD bite, even that may not work.

Did you use Anti-Seize on the threads when you installed the damper?

Hope this helps.

Jake
Reply
Old Jul 22, 2007 | 02:03 PM
  #3  
JAKE's Avatar
JAKE
Le Mans Master
10 Year Member
 
Joined: Feb 2000
Posts: 9,715
Likes: 27
From: Kempner Texas
Default

BTW, my damper is an extremely close fit to the hub. To remove mine, I had to make ABSOLUTELY sure I was pulling straight without the least amount of angle as I pulled on it.

Jake
Reply

Get notified of new replies

To big problem with ATI balancer





All times are GMT -4. The time now is 12:02 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