Cool, I'm a long way from that bridge though... I'll start a new thread when I begin this first rebuild, might end up helpin some future rookie eng builder. I was looking at the flywheel bolt it's a 17mm on the Hitachi flywheel. The 81' JH2 motor is a 14mm and not a Hitachi. I don't have an impact Driver and I know I'm gonna need one for this kinda work. I haven't got my pneumatic equip set up yet and I don't have a air impact either. I have to put in a 220v outlet in the garage for my air comp because this new 1/4 mil house didn't come with one...F'nn unbelievable. I see a lot of cordless ones. what is the preference? I was thinking about gettin one...It's always something!