Had anyone had there harmonic balancer come apart? I have had a squeek noise for the last couple of days; took a long hose and listed to everything and it sounds like it is coming from that area. It only does it when hot. I also found some metal dust around the bottom of the motor.

Anyone had any experiences with this?

The motor is making around 500rwhp right now.

 

Did you shear the balancer key ??

 

You have a point

I had a problem about two weeks ago. Which I had had this happen about a year ago also. The truck has underdrive pulley's, and it destroyed the belt/tensioner. It happens when I am about 3/4 to full throttle and for some reason have to back off before it shifts. You can hear the belt squeel HARD. I try my best not to do it, but it happen two weeks ago, and when I got home the accessory belt was split/off a couple of groves and the tensioner was bent. I replaced them and everything seemed fine, but then it started making this squeeking noise.