2004 Saturn Vue timeing problem

I went to change the tineing chain tensioner and it jumped time when I took out the old tensioner im trying to put it back in time but the crankshaft doesn't want to rotate to set in time it will turn a little but not enough to set in time I can turn the camshafts around but no the crankshaft is there a certain way to set the camshafts to rotate the crankshaft around to set it in time