OT: removing spun bearing material from crank

airwoofer said
I have used acid to eat the aluminum that gets stuck in a steel lined barrel when a two cycle piston got too hot and siezed , leaving aluminum embedded in the steel. Had to remove it before honing the cylinder for re-use. Just cannot remember what I used. Might have been muriatic acid.

Now that you mention it, I used muratic acid to get some siezed/swollen from corrosion pistons out of a 440 block a long time ago. Not sure you can still walk into your local hardware and buy some though. I thought I read do to the terrorist crap, they were going to pull the stuff.