Can the harmonic balance come loose?

Maybe I missed it. The thing I haven't seen mentioned that makes bad noises as the front of the engine is to leave off the oil slinger on the front of the crank. The timing chain rubs on the front cover. The noise will change depending on the load on the valve train and distributor as determined by engine rpm.

I use a steering wheel puller to remove the harmonic balancer. By using two inch bolts in the tapped holes for the pulley, it doesn't matter what's going on with the outer ring on the balancer.