I got the piston out of my moby today to replace the rings, and they are stuck _solid_!
I've tried everything I can think of with no help. I hear you can try boiling the piston, spraying it with WD40, and blowing the cracks with an air compressor gets them loose. Is that safe to do with the piston? How about soaking it in carb cleaner?
Maybe stupid questions - just don't want to mess up this piston.