Ok I have a d16z6 I'm replaceing the headgasket. Well first ? Is do I need to take of the harmonic balancer? If not how can I set this at tdc I have a bisimoto cam gear and caint figure it out I have head ready to be loosend and taken off but wanna get it at tdc first. And even if I do pull off the balancer how can I get this cam gear back into spec thers nothing really that lines up with anything on it still have lower timming cover not upper thanks