added so new pics

[Skools Out]

sounds like it may have been put up warm at some point in the fall or winter and that it made condensation when the cold night came. Then the moisture froze over the winter around the upper ring. That I have seen and it will cause the top of a piston to crack then when the motor is run and gets warm it starts to flake apart.

Just my .02 worth of thoughts. Who Knows