slant 6 engine questions

It sounds like you have it apart to a point you can see the chain? Youre crazy if you don't change it. Youre there. Most I've seen,had nylon teeth on the cam gear and I've seen them shear on any engine equipped that way, some worse than others. If you don't it'll come back to bite you, you'' set yourself up for a "redo". for what itll cost you its cheap insurance at a minimum.