I certainly wouldn't run it, that damper's trashed! 
crank pulley wabble
crank pulley wabble hey guys, i have a question about my LS3 crate engine. i got it all set up in a 72 camaro w comp cam LSR 269, got it running and while looking things over while it was idling, i noticed the crank pulley wabbles noticably. when i did the cam swap i used a new torque to yeld bolt and torqued it to spec. i cant remember the exact # , but it was something like 50 ft lbs +270 degrees. is this something to worry about and has anyone else noticed this? thanks
Its definitely something to worry about. I wouldnt drive the car till its fixed. I dont know what would cause it though but I think 50 foot lbs is way to low for that to be torqued. Fbody torque spec I think is 240 ft lbs
the torque spec was 50 ft lbs + 270 degrees of bolt rotation. that makes it around 240 ft lbs. i figured it out anyway. the rubber isolator on the dampner is out of alinment. i think i can just pry it back square. thanks
TECH Regular
Joined: May 2008
Posts: 460
Likes: 0
From: St.Louis Missouri
Mine did the same thing man you need to notch the the crank for a key way on the balancer because they factory cranks done come with them mine did it twice after torque from hell so thats what i did an now its trying to throw the belt because of a weak tensioner so i ordered the comp cams one with idoler pulley n now its fine so it's all good! My callies cranks was notched when i ordered my 408 from LME but the slp balancer wasn't so i ordered a new PowerBond balancer and they are super nice piece for a good price well worth the money.
TECH Regular
Joined: May 2008
Posts: 458
Likes: 0
From: Marissa, Il
Trending Topics
anybody got an idea of the best place to buy a new dampner? my budget on this project is running out fast!! i would be afraid to buy used for fear that dampner would have been pulled with a 3 jaw as well. its an ls3 type.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
i just ordered a factory dampner from a dealer. 125 buck with a new bolt shipped. thought about an underdrive unit but my setup is going to make all the power i need for my app.
