I'm trying to get #1 piston in TDC. Book says to have intake closed then rotate 30 degrees till ball lines up with pointer. I'm doing this by hand. Firing order 1 5 3 6 2 4. Are pistons 1 3 2 TDC at the same time? Because when I have the #1 intake closed it is more like 120 degrees before the ball lines up with the pointer.