Okay I've only read this far and can't take anymore! I'm sure people will tell you that people work at a machine shops grinding valves or hot tanking parts or boring holes called themselves The Machinist. They're only hole Drillers and valve Grinders they're not assemblers they don't know how to assemble Motors and make everything work they know how to grind a valve. Just like they were taught. This guy sounds like a complete Jack wheel then screwed things up adjusting valves by sight or hand did I hear you say that? All the questions you're asking now I asked before I started assembling my motor and before I started doing anything I had a discussions on every single aspect of it. I got a lot of crap on this form when I started because I kept asking more questions and kept questioning people's questions but still learned a lot and made sure I knew everybody's opinion and everybody's knowledge before I started doing things even though I did a lot wrong. Well you said you're learning a lesson so lesson learned do it yourself don't let nobody touch your s***