Archie Frangoudis wrote:

I am getting ready to make fixtures to dynamically balance
these engines, and am having some difficulty in obtaining
correct and reliable information.

Balancing the crankshaft should be straight forward, but has
anyone removed the flywheel counterweight and achieved
equilibrium by moving it internally? Is there an advantage in
doing this on the rotary?  In balancing the rotors, is there a
precision fixture available, or make one? Is there an advantage
on the rotary to overbalance?
Archie

This is from Ken Yamamoto's book Rotary Engines 1981 version.

There is more in there if you have questions. The book might
be real hard to find.

rotbalan.jpg

Paul Lamar
 
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