Look Carefully.  That pulley will only go on one way.  The holes are not
exactly symetrical.  At least this is the case on my 20B and every 13B ever
made.

Tracy Crook
tcrook@rotaryaviation.com
www.rotaryaviation.com

Also, the stamped steel pulleys are not always interchangeable on the keyed hubs. The timing of the pulley bolt pattern is not always the same with respect to the keyway from hub to hub, and pulley to pulley. Therefore, the pulley and hub should be considered a matched assembly.
Jon Lauter
Rotary Power Marine Corporation
www.rotarypowermarine.com
516-656-5685

 
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