We removed the stock camshaft and replaced it with a TFS Stage 1 split duration cam with Scorpion roller rockers. We ran into a snag though. We are also installing a new adjustable double roller timing chain set. For some reason the stock crankshaft gear slides to the half way point and stops. Its like that section is swollen. Anyone have a trick they can share? Never run into this before. Usually it's the old balancer that's a pain but that came of in seconds.