I don't know about anyone else but I have this insatiable compulsion.
A nice new (for me anyway) engine sitting there staring me in the face.
Wanting to be touched, handled, examined.
And if that's not enough somewhere perhaps by some ancient evolutionary racial memory comes the urge to flip.
First you just tweak the motor by the thrust washer until the piston closes the exhaust port and you get the first feel of back pressure.
It starts out innocently enough, just tiny little tweaks rocking the crankshaft back and forth, just a smidgen of a try out.
Soon a voice in the back of your mind starts seducing you. Mount a prop on it. Engines are not complete with out a prop. They look soooo much better sitting there with a propeller attached. They were meant to be that way, with a prop, all business, ready to go.
So you install the prop and that seems to satisfy the little voice...... for the moment.
Soon the engine whispers, pick me up, touch me, feel me, play with me.
And you promise to yourself "Just one flip" only one, just to get a feel for the motor. And I have to check for potential manufacturing defects right?
Next thing you realize is that somehow that engine has no compression to speak of, is all loose and wiggly. You somehow had a complete blackout not remembering that for the past two weeks you were absent mindedly flipping the engine through, while watching TV, Reading computer blogs, Enjoying your morning paper and cup of coffee.
Been There Done that ....and more than once. And I am starting to hear that little voice starting up again.