Harmonic balancer failure

[bucketobolts]

Just ordered a Scat balancer and a billet aluminum pulley. I was told I was paranoid for worrying about the slight sound I heard. Good thing I was paranoid!

Stupid question here. I read somewhere about someone putting some RTV on the crank so the oil doesn't leak from around the balancer . Does this sound right?

I usually put just a drop in the key way before I install the balancer. The inside diameter is machined tight enough to seal, but the only hole is the key way.