cruzc5frc

disturbing amount of play in the center, but the belt rim seems pretty stable, time to change this balancer out?

https://www.youtube.com/watch?v=Gk5G...be&app=desktop

2013 with ARH 1 7/8, Lingenfelter 710 package, dyno tuned super conservative (in my opinion) at around 630 to the wheels. Car has less than 6k miles. (full D3 system including dual spal fans to boot)

Woods

[QUOTE=cruzc5frc;1594609371]disturbing amount of play in the center, but the belt rim seems pretty stable, time to change this balancer out?

https://www.youtube.com/watch?v=Gk5G...be&app=desktop



I looked at the video and the Harmonic balancer is rock solid on the outer ring section. The balancer wobble occurs at the outer ring because the rubber sandwiched between the rings fail.

The balancer looks to be doing its job.

On yours the center wobble looks to be the balancer bolt itself, like its bent or loose.

Curious what others think.

MTPZ06

Thread on this about a week ago in the C6Z section and it was deemed "normal". It appears to be a fairly common occurrence.

cruzc5frc

I'll try to find that thread, was also going to look at the service manual to see what the process is to check the bolt and how much torque is needed.