Ed Klepeis wrote:

Dear Paul
      Do you know if you put alum pulleys on the rotary eng  is the bal. of the eng screwed up? I know the subaru eng are internally bal so the taking off of the big pulley on the crank and
replacing it with an alum doesn't harm the eng operation I would if the same holds true for the rotary. I am looking into having all alum pulleys made up for sale crank,water pump and alt. all under
sized to turn slower it will use the ribed flat belt.What do you think of that idea. any suggestion.
                                                                                                                                                                     Regards
                                                                                                                                                                         Ed
                                                                                                                                                      techwelding@comcast.net

No affect on the balance Ed. I am still working on a spot for you in the
engine workshop at Sun & Fun. Are you still going?
Nothing wrong with a ribed flat belt.

Paul Lamar
 
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