You can call for a quick how to if you want.
The nuts holding the pulley on the balancer didn't loosen - the giant 36mm nut holding the balancer/pulley assembly on did. Hard to say how long I was driving around until the balancer worked its way off the crank. Yes, it made a hell of a noise beating around until it fell out. I looked in the rearview and there it was laying on the street. Luckily, I didn't see where it damaged anything else on the way out other than a few scratches on the oil pan. Unfortunately, the pulley isn't useable and will have to be removed from the balancer and replaced. I also need to source a woodruff key. I have the nut.
This engine has never been apart that I can tell. I have been meaning to replace the engine mounts - wonder if the extra vibration helped coax it off.