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Originally Posted by insite
indeed. still, very bizarre that this happens. cloudsurfer - harmonic balancers are normally tuned to damp the natural frequency of the crank. who designed the damped pulley, & do we think it's tuned?
i wish i could get that broken crank under a microscope.......still, with it being sintered, it would be a lot harder to tell exactly what happened.
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Well aware
The pulley I have came from RSS, and was "designed for the M97 3.8 engine to retain the factory damping characteristics" so honestly, who knows if or how well its tuned, but I figured it was better than having nothing, so it went on my motor.
I, too, would be interested to see the actual failure of that broken crank....