Just to muddy up the water I will put my oar and stir things up.
Some time back I ran across a Repco Phelon flywheel that someone
had welded a hub from a KE7 series into a flywheel from
a KE4/Mark7 series. I admired the concept, but, it seemed
a bit iffy for 6,000+ RPM.
I got to thinking (or what passes for thinking in my case) about
adapting the relatively common KE4 / Mark 7 flywheel (F514 C)
It occurred to me that if the hub taper and keyway could be
altered to the taper and kewway of KE7 series (F514G) the
problem would be solved.
I compared and measured Repco Phelon F514A, F514C and F514G
It does not appear to be doable. The outer diameter of the donor F514C is about 1 1/8″ and that of F514G is about 1 5/16″ and is
a bit huskier also.
It would require a VERY good machinist to enlarge the taper
precisely. As my shop instructor would say,,,It would have to be
dead nuts on.
