Generation IV External Engine LS2 | LS3 | LS7 | L92 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

Serpentine Belt Walk - Help Please

Old May 20, 2015 | 09:25 PM
  #1  
smaynor's Avatar
Thread Starter
Teching In
 
Joined: Jan 2015
Posts: 7
Likes: 0
Default Serpentine Belt Walk - Help Please

Hello All,

I'm having an issue that just popped up on my LS3 conversion, and I would appreciate some help.

This may be a bit long, so bear with me...

I had a 418ci supercharged LS3 engine in my 2006 Corvette. I ran this setup all last year, with no problems. Oh, BTW, this car was drag raced every weekend, so the engine was regularly ran at high RPM. No problems at all with this setup.

Over the winter, I decided to put the Vette back stock, and I pulled the race engine and installed it into my new little drag car.

Same engine, same blower, but I had to fab an alternator bracket and run a 1-wire alternator, which was mounted backwards due to space. There were no problems with the belt, other than the alternators didn't like to be run backwards, and overheated and failed rather quickly.

This week I decided to eliminate the alternator problem, and I installed the exact same alternator/PS bracket from the Vette onto the drag car. I installed the exact same alternator onto the drag car. The only difference is there is no PS pump on the drag car. Otherwise, the front of the engine is EXACTLY the same, using the same parts, as was on the Vette.

Now, my belt wants to walk toward the front of the balancer pulley. It moves one groove as soon as I crank it over, and then stays there.

Again, these are the exact same parts that I ran in the Vette, just transplanted to a different car. Only difference is no PS pump or pulley.

Any idea what could cause this? ATI balancer, no idlers/tensioners that seem bad, new belt, etc. Is it even possible that the new belt I purchased could be bad in some way? I was not expecting this issue AT ALL.

Any help would be appreciated. I have a race this weekend, and would really like to get this resolved.
Reply
Old May 21, 2015 | 07:21 PM
  #2  
S10xGN's Avatar
TECH Junkie
iTrader: (11)
 
Joined: Jul 2005
Posts: 3,782
Likes: 7
From: Port Neches, TX
Default

Post a pic of the FEAD. Could be you don't have enough belt wrap with the PS removed...
Reply
Old May 29, 2015 | 11:29 AM
  #3  
Project GatTagO's Avatar
TECH Senior Member
20 Year Member
Liked
Loved
Top Answer: 1
iTrader: (7)
 
Joined: Mar 2003
Posts: 10,613
Likes: 1,882
From: Little Austin
Default

A Katech non-spring loaded tensioner will cure this. I've run the Corvette accessory placement on 2 different cars without the PS pump. On the first swap I would shred belts. Installed the Katech tensioner and problem solved.

Andrew
Reply


Thread Tools
Search this Thread

All times are GMT -5. The time now is 09:06 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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
story-8
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

The world was a better place when it was still around.

By Brett Foote | 2026-01-23 09:20:37


VIEW MORE
story-9
10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

Slideshow: The 7.0-liter LS7 was designed for absolute cutting-edge performance.

By Verdad Gallardo | 2026-01-07 18:36:00


VIEW MORE