The pulleys use a mechanical dampener that consists of about 28 internal pieces. I don't want to get into the details of our pulley for obvious reasons. However, I can tell you that they are balanced and tested before shipping. The mechanical dampener works throughout the RPM range unlike the fluid dampened version.
There is no feasible way to balance the pulley as a whole unit other than the internal mechanical balancer.
Originally Posted by parawxman
Thanks for the reply, but unfortunately I am still slightly confused. It’s understood that the harmonic balancer is internally dampened and balanced and it appears to be a Fluidampr, which is great news to me. But my question comes when breaking the harmonic balancer / blower drive pulley assembly down one more level:
...Is the grooved blower drive pulley, which is cast/machined separately and bolted to the harmonic balancer with 6 bolts, balanced separately prior to its attachment to the BALANCER?
...Or is the complete assembly of harmonic balancer and pulley RE-balanced as an ASSEMBLED pair once they are bolted to each other?
…Thus making the entire assembly 100% neutral balanced and not just the harmonic balancer portion of the unit.
I just need to be clear, as I’ll be balancing mine after purchase, if need be
Thanks again for your help