Along this journey of my first busa engine build I have discovered there are some things you can get away with.....other things... not so much.
Case in point is that my China made micrometers only would read to .001. Truth be known they came from Harbor poop sales and are not too bad all things considered. Unfortunately these don’t really do me any good considering the bearing and journal tolerances are to .0001. I was making guess estimates based on the end wheel being "part way" through the .001ths.
I sent the crank to Marine Crank today to be balanced, polished and nitrated. I dont think that the tolerances would change due to this operation but didnt know if it was common to send another good crank back to me pre done with this common machine work, that may not of been the exact crank I sent in (unlikely but ya never know).
I got this mic today to do the measurements on the journals when the crank comes back before I order bearings.
If you are reading this considering doing a build that requires new bearings just be ready to get a mic that reads at least .0001. This one reads to .00005 and is somewhat spendy but at least there will be no guessing on bearing tolerances and hopefully will be the last one I need for a while.
~JH