Working today on chevy 2.8L. The crankshaft broke in half and the new one is in. How do I know when the crank's nose gear for the timing chain is on deep enough? I took it apart a while ago and don't remember. Without the woodruff key, it will bottom out on the crank. Any ideas? Timing chain seems to be flat against a guide flange, but the gear looks a smidge cocked. Key is in and I'm hesitant to try and drive it on further.