Jean Fouche wrote:

I had a friend run a ball bearing from his carb through his 12A Rx-2. It
cost him a rotor, rotor housing and new apex seals. The way that the rotor
"wobbles" inside the housing causes TOO much chance for the bearing to get
fouled by the apex seal and housing. Similar to carbon lock.

Jean Fouche

"rotor "wobbles""?   There is no stinking rotor "wobble" :-)

The rotor rotates and the center of the rotor moves in a perfect circle.

Yep! It is possible to get something jammed in the squish space behind the
depression in the rotor and between the rotor face and the rotor housing. 
I think a lead BB however would probably make it through as compared 
to a steel ball bearing. Depending on the size of the ball bearing of course.

Paul Lamar
 
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