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Wear point worth checking

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Bill Strahan

Joined: 20 Aug 2008
Posts: 145

Posted: Tue Nov 24, 2009 9:58 am Post subject: Wear point worth checking

I noticed recently that the braided lines going to my oil cooler were very close to one of the pushrod tubes on the rearmost cylinder.  I made a note to check that next time the bottom cowl was off, and in doing so yesterday I was shocked to see that they had clearly been vibrating against the tube.



The wear was not only visible, but could easily be felt with my fingers.  I don't know the thickness of those tubes, but I'd estimate the worn depression was a few thousandths deep.



The lines are now secured from vibration.  I know each plane is different, but since these lines are routed similarly on all the planes it's worth making a note and checking next time you have access to the engine.



Bill

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