Merlin block re-build
Cylinder walls appear to be in good condition with just some light surface rust maybe. Planning on using Hell Fire rings, and here is what speed pro sent me.
Rehoning Use Aluminium Oxide stones
280 grit, 2/3 strokes
400 grit, 2/3 strokes
(This was with the fancy Sunnen hone tools of which I probably won't be buying)
Can I hand Hone it with a ball hone or is it worth taking to a shop? Do I really need both the 280 & 400 grits? My 4.5" Ball hone has some flat spots on the ends of the balls from lots of use...probably ought to be getting a new one anyway???