Just press them in till they stop. Now on mine the bearing  pressed  in tight. But the insert were shot. But it felt tight when I pressed Them. I have a hot rods crank in mine right now. Had Jerry redo it with new rod kit. Mine has held up good.  But if I was in your shoes, it might cost a little more to do now. But I would send my cases have check the pockets put the bearings in let them scope the crank. So all your parts are their so you will know everything is right your very first time. So you dont waste any time or money.