Rookie balancer mistake

You must mic the crank, measure the bore in the damper and make the hole in the damper .0008-.0010 smaller than the crank. That’s how much press for you want. Any more than that and you can get into galling. Any looser than that and the damper looses its ability to control harmonics.

If you can’t measure accurately find someone who can.

Also I never ever press a damper on dry like that. I use anti-seize on the crank and a little in the damper and then use the tool (or what you have...all thread and a nut) to pull it onto the crank.

Pressing the damper on the crank without some form of lube is a bad thing.