I have no idea what these two first pictures are of. The small shiny piece looks to be broken off of something. Then the small washer was just there. If anybody could help me out there that would be great. Lmao
How many rpm were you turning? I know some people had issues with that even with 12mm pumps that were trying to zing em.
Looks to be the spacer and tit for the backside of the cam plate that locates the rotor.