LT1-LT4 Modifications 1993-97 Gen II Small Block V8

96 Caprice

Thread Tools
 
Search this Thread
 
Old Aug 6, 2009 | 06:55 PM
  #1  
thomas22's Avatar
Thread Starter
Registered User
 
Joined: Aug 2009
Posts: 4
Likes: 0
Default 96 Caprice

I have a 96 Caprice with a 5.7 Lt1. I keep having an issue with the balancer or damper hub, I keep having an issue with the bolt that bolts it to the crank coming loose and backing out the Pulley/Damper/Hub from the Crank, ultimately throwing the belts. I know this year has a keyless hub, but the crank does have a notch for a key for the crank postion indicator. My question is can I use a keyed hub from a 96 camaro Lt1 and or 96 corvette LT1 or any after market keyed hub and use the keyway on the crank to keep the crank from slipping and ultimately backing out the bolt to the hub? when i put the original hub back on I noticed the key for the indicator was missing, i ran it anyway , it ran for awhile and i noticed no problem without the key indicator missing, but once again the bolt backed out. Help!!!
Reply
Old Aug 6, 2009 | 07:04 PM
  #2  
ss.slp.ls1's Avatar
TECH Senior Member
15 Year Member
iTrader: (36)
 
Joined: Jan 2008
Posts: 8,184
Likes: 28
From: Orange County, CA
Default

Originally Posted by thomas22
I have a 96 Caprice with a 5.7 Lt1. I keep having an issue with the balancer or damper hub, I keep having an issue with the bolt that bolts it to the crank coming loose and backing out the Pulley/Damper/Hub from the Crank, ultimately throwing the belts. I know this year has a keyless hub, but the crank does have a notch for a key for the crank postion indicator. My question is can I use a keyed hub from a 96 camaro Lt1 and or 96 corvette LT1 or any after market keyed hub and use the keyway on the crank to keep the crank from slipping and ultimately backing out the bolt to the hub? when i put the original hub back on I noticed the key for the indicator was missing, i ran it anyway , it ran for awhile and i noticed no problem without the key indicator missing, but once again the bolt backed out. Help!!!
Are you torquing it down properly every time it comes loose?
The LT1 hubs are not keyed, but you can get it cut to use a key.
Reply
Old Aug 6, 2009 | 08:01 PM
  #3  
thomas22's Avatar
Thread Starter
Registered User
 
Joined: Aug 2009
Posts: 4
Likes: 0
Default

I believe that I have torqued it down properly, but what is the best way to keep the crank from turning as you tighten it down? can you remove the dust cap from between the Tranny and the engine and wedge it so it won't move?
Reply
Old Aug 6, 2009 | 08:06 PM
  #4  
ss.slp.ls1's Avatar
TECH Senior Member
15 Year Member
iTrader: (36)
 
Joined: Jan 2008
Posts: 8,184
Likes: 28
From: Orange County, CA
Default

Originally Posted by thomas22
I believe that I have torqued it down properly, but what is the best way to keep the crank from turning as you tighten it down? can you remove the dust cap from between the Tranny and the engine and wedge it so it won't move?
Auto or stick?
M6 - keep it in gear with the parking brake on.
A4 - Remove the inspection cover and lock the flexplate with a prybar engaged on the flexplate teeth.

Are you using a torque wrench?
Reply
Old Aug 6, 2009 | 08:11 PM
  #5  
thomas22's Avatar
Thread Starter
Registered User
 
Joined: Aug 2009
Posts: 4
Likes: 0
Default

No I have not used a torque wrench. Also I think the Crank or the hub might be a little wallered from when it first came loose while running. The hub would be more likely to be worn before the end of the crank , would it not? Also if that is the reason it keeps slipping can you shim either the crank or the hub? lastly is it just more wise to replace the hub all together and have it keyed into the crank
Reply
Old Aug 6, 2009 | 10:25 PM
  #6  
JAKEJR's Avatar
TECH Regular
 
Joined: Apr 2007
Posts: 420
Likes: 0
From: Kempner, TX
Default

If you're worried that the interference fit isn't tight enough, just buy a hub that's been broached for a key or send yours off to, say, Golen Engines, to have your stock one broached. About $70

ThunderRacing sells one, already broached, that'll press right on; less than $100. All you'd need then would be a Woodruff key which you may be able to get from them or your local GM parts department. NAPA sells keys, too, but they come in all different sizes, so choosing the right on becomes a problem.

Jake

West Point ROCKS!
Reply
Old Aug 7, 2009 | 07:45 AM
  #7  
96capricemgr's Avatar
11 Second Club
iTrader: (1)
 
Joined: Sep 2004
Posts: 11,975
Likes: 15
Default

You don't need a keyed hub, you just need one that is not damaged and hopefully the crank is not damaged.

The Vette and f-body have different length hubs that are also NOT KEYED.
Reply




All times are GMT -5. The time now is 09:23 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE