Ray,
I have a piston/sleeve from a backup motor that I took apart after I ran it to clean and never reassembled. The motor was left in a box in pieces and when I opened the box to assemble and use it the crank was through one of the ports on the sleeve, when I was assembling it the piston wouldn't go in the sleeve because the crank bent a piece into the liner stopping the piston from going in.
Before noticing this I scratched the crap out of the piston and there's a sharp piece from the port bent into the sleeve. The motor was pretty new and don't think it needs resizing as of yet, but is there anything you can do for this engine? Before 12/3/13? Wish I heard of this before today