Ahah... I destroyed it now. Read somewhere to give it a strong magnetic field while heating to Curie's tempearture (About 1000F I think), using my butane torch.
I got some hard drive rare earth magnets (50% of the world's RE are in HDD's). Stuck them on it, and heated it up.
1 minute later, I turn it off. Magnets just plumb drop down (take in mind these were impossible to separate before), and the flywheel won't even pick up a tiny metallic flake now.
Failed. Tips anyone?