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vibration and noise

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cliffsofinsanity1(at)comc
Guest

Posted: Thu Jul 20, 2006 6:54 am Post subject: vibration and noise

To All

 I have a model 1 with 503, Hegar cog belt  drive.

 There is a good vibration at 4000 to 5500  rpm.

 I have changed the bearings in the propeller  pulley, put a new belt on it. Checked the pitch on the propeller and checked the  motor mounts. All seems to be ok.

 CHT and exhaust temps are in the normal  range.

 The noise sounds like a screeching sound. And only  occurs after leaving the ground and doesn't stop till back on the ground  again.And does it all rpms while in the air.

 Any ideas would be helpful.

 Thanks  Jeff  Scovill

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kitfox(at)ida.net
Guest

Posted: Thu Jul 20, 2006 8:09 pm Post subject: vibration and noise

Check your blade tracking???  Also do not just  limit it to an engine problem.

 Albert Smith

 5 TD NSI T Cap

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