Thanks,  I really ran into my ignorance on this one.  But it is
interesting.  I suppose I should send off the e shaft for balancing
first and then the assembled engine later.    In balancing the rotor,
what does one do about the various amounts of oil it contains?    Jerry

I have no idea how to go about balancing a single rotor.   Would it
be accomplished by adding more balance weights to the e-shaft.  How
would one do this?   Is  it done while the e-shaft is balanced
between two knife edges.   Perhaps my question reveal that I am
missing the point altogether.      ???????? Jerry

Knife edges give you static balance only.
It is not easy Jerry. You need to know exactly where the center of  mass is
in a counter weight. In other words how far the counter weight is  from the center of the
rotor along the axis of the e-shaft. Perhaps the easy thing is to  send it
to a guy here in So Cal that balances rotary engines
and then copy exactly what he comes up with. Call Mazdatrix for the
name of the guy they use.

http://www.balancemaster.com/Balancing_explained.htm
-- 
Paul Lamar ...No rotor no motor.

Thanks,  I really ran into my ignorance on this one.  But it is
interesting.  I suppose I should send off the e shaft for balancing
first and then the assembled engine later.    In balancing the rotor,
what does one do about the various amounts of oil it contains?    Jerry

There is a difference of opinion on how much oil should be in the rotor.