Okay, so my cam chain was about to break so I ended up doing a full engine rebuild to replace the cam chain and some others things. No problems so far, finally got to rebuilding the top end, and I can't for the life of me get the cam sprocket onto the shoulder of the camshaft. By some miracle was able to get the chain onto the sprocket itself, but there is seriously not enough room to get the sprocket back on to the should of the camshaft in order to screw it in. Is there something I'm missing? Any tips? I noticed a post in here regarding the same issue, but no one responded to it. Thoughts?