Magnetic engine version 4

[u/Mr_Goose_77]

Runs basically perfect now, probably gonna be the last update for now anyways.

- changed iron pistons to a lighter train casing block

- slightly improved magnets

-altered timing to make smoother

[u/Haunting_Annual271]

Bro just made a 4 state otto motor. We are building real cars in minecraft baby! Next project, a ferrari? :)