The work took about 20 days.Very nice looking build and very high quality work.
I noticed that you substituted ball bearings for the bronze bearings shown in the drawings; what were the sizes of the bearings you chose? Just for my curiosity, over what period of time did it take you to complete the engine?
I make everything on classic machinesAre you doing all of this work on manual equipment or do you have CNC capabilities at your disposal?
I have checked and cannot find those bearings. Do you have a link for a source? Are they self aligning bearings?