Heard this rattling in the bottom of my case when I was changing my timing chain. looked like it was a metal ball bearing. got it out with a magnet.
after getting it out: It is about a half inch long shaft with a plunger looking thing on the side. almost looks like a smaller version of the timing chain adjustment plunger.. I will try to get pictures once I find hosting. anyone have any ideas where to look in the manual till then?