on my f4i, i just put it in, tightened it with my hand until i felt some tension, tightened it probably a turn to two, then started it. Rev it, if it rattles, tighten a quarter turn, rev, repeat until rattle is gone...
It took me a long time to finally find a spot where it stopped rattling. Mine would never quit so it took me forever to find a spot where it barely rattled, oh well.
PS, dont get it to tight, you will hear it whine kinda like a little supercharger, if so, loosen a few turns and start again.
