You are right,i'm sure I will find out where the shavings came from when its torn apart,hopefully it wont require any cylinder sleeving but whatever it needs Its worth saving.One day i will rebuild it,it will probably just be in storage until that day,if it comes,lol.I hate to pull it all apart until i rebuild it some day,its easier to keep it intact so not to lose parts.But my curiousity may get the better of me and i will tear it apart.