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<DIV>Just last weekend, I finally had to replace the Boca SS bearings that I put
into my OS 1.40 RX before the engine was ever run. I noticed the bearing
roughness after flight number 431. Based on advice from so many Pattern pilots,
I never even tried the stock bearings.</DIV>
<DIV> </DIV>
<DIV>The fuel was 15% Magnum and the engine was run dry after every
session. I used Mobil 1 as an after run oil each time. The rear bearing had
both seals removed and the front bearing had the rear seal removed but kept the
front seal of course. The front bearing seal was metal, not rubber so I don't
know if Mobil 1 would affect rubber.</DIV>
<DIV> </DIV>
<DIV>Regards,</DIV>
<DIV>Frank Granelli</DIV></FONT></BODY></HTML>