Ls front assessories not in line?

[boostin05blacksti]

Ok guy/gals. Ive run into a problem that I can't seem fix. I've talked to some people in the industry and no one has any solid answers. Btw thanks for your time Travis! I bought a gm crate lsx454 straight for gm. Come with the harmonic balancer already installed. I then found a full used setup and bought it all (was told it had very low miles). That whole set up came with a harmonic balancer but I decided to run the one that came with the motor. So when I brought the car to the tuner for the first time and he was trying to do the crank relearn (revs the motor up to 4k) he says it threw the belt due to it not being in line. That the crank is sunk in 1/4". So I get the car back and take look..now I come to the conclusion it was one of two things. Either the crank is in too far causing it to throw the belt or when the motor torqued the belt touched the upper control arm on the drivers side and caused it to throw it.(which I plan to file down some more- has about 1/2-3/4" of clearance ATM.)


So being that I had the other harmonic balancer I decided to change it to the one that came with the assessories. Changed it out and here's a comparison.
One that came with the lsx454 motor on the left and one the left the one that I bought as a kit used.


https://static1.pt-content.com/images/pt/2012/08/9d8bba55-1.jpg
https://static1.pt-content.com/images/pt/2012/08/e4a128e9-1.jpg
https://static1.pt-content.com/images/pt/2012/08/832a0edd-1.jpg
https://static1.pt-content.com/images/pt/2012/08/367538ca-1.jpg
https://static1.pt-content.com/images/pt/2012/08/9f38d62e-1.jpg


So I swapped them out and figured the problem was solved. Go to start the car this past saturday and I can hear a repeatedly slapping. Go to the front of the motor to see the passenger tensioner slapping repeatedly and the belt going in and coming off the harmonic balancer is almost ribbing in a way like its trying to walk off but is not. But it does not throw the belt. On Sunday I start the car again.. This time no slapping of any kind and seems to be on just fine.. Started the car again later on Sunday same thing..totally fine. I'm lost on what to do..aside front buy a whole new front end setup. The only thing I can think now is to shave the mounting bracket that houses the alternator, power steering pump and drivers tensioner. I'm thinking shaving the back side a 1/4 " will help the problem...any one have any suggestions or input it would be greatly appreciated. Thanks Steven


One with the old harmonic balancer:
https://static1.pt-content.com/images/pt/2012/08/730fd50c-1.jpg

[daytonayellaz]

My pleasure Steven... You called when I was on the road and couldnt really picture what your setup was. Is that a C6 acc drive setup? Dont grind anything just yet! Cant put it back once you take it off. The balancers only press on so far and then stop...if that is correct then its some where else. Is the power steering pump installed correctly? Need to make sure you have the correct belt tensioner also...what part# is it? What part# is on the power steering pulley? If you could email me some better pics of everything I will look closer.

[boostin05blacksti]

Thanks for the reply Travis and again thanks for talking the other day. What's your email? Also here are some pictures..seems too far in by 3/16" lmk that you think.. Also I'll work on getting you some part numbers..

https://static1.pt-content.com/images/pt/2012/08/3d725162-1.jpg
https://static1.pt-content.com/images/pt/2012/08/ab19d061-1.jpg

And here's on of the drivers tensioner..
https://static1.pt-content.com/images/pt/2012/08/f469850a-1.jpg