Originally Posted by 8secnotch

Just in case you don't know
TDC = top dead center
BDC = bottom dead center

The flywheel has nothing to do with this so leave that alone. Just make sure the piston is at TDC before you go and pull the back plate off your engine and you'll be fine. If I was you I think I would get someone who knows what the internals of the engine are help you out before there is more problems then just a broken piston skirt.

Also don't all engines have a o ring to seal the back plate anyway? I know the ones I've had do. So why mess with it.