> It turns out that the top ring was actually going slightly beyond > the top of the steel bore and was hitting the aluminum in the head > causing the ring to twist, creating the strange wear in the bottom > side of the ring.
I imagine the ring groove is trashed. I have heard that this is a critical area on a piston. > The only solution was to order a set of stock O-200 pistons > and downgrade the engine to a stock O-200. :o( Wonder if you put some spacers under the cylinders. Maybe cut em out of copper sheet? But I 'spose ya thought of that already. GeoB
