Sons 300m and I need help please!

Next time ya lose something in a cylinder,neck down your shop vac to a small tube and vacuum it out. Easier on the back....
I will remember that.
My back is still sore.
Didn't work on it last night. Had to take a break.
Will put the timing all together and start the electrical sensor testing tonight.
Son is so optimistic that he went and bought the crank sensor last night.
He is sure that must be it since the timing / valves are good.
Only thing that we can find that might not send a code.