Piston Engine

"First" attempt to do a full piston powered engine. I do not figured a way to do the rotation automatic, so just press 1,2,3,4(num) or Y,U,I,O in case you have a smaller Keyboard. If u get the wrong timing it will probaly reverse, but just press the buttons randomly that it goes back to normal(I hope...). Also, feel free to change whatever you want to make it better, and if happens to be uploaded back to the Workshop just give the credits for the base model.