Piston Head/Cylinder Scratching Noise

[JLiang]

It's not so much broken as it is scratched.

I think I have a picture somewhere on the forums; I'll see if I can dig up the file on my computer.

Basically, it's got long scratches on the inside when my old piston head shattered and scraped its attachment screw all over the place.

I've polished it with steel wool, but I'm concerned my O-Ring will rip.