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shakeym35

Knocking and vibration

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Guys replaced x3 guildo doughnuts  and x2 prop shaft centre support bearings in a space of a few weeks.  The prop vibrates really bad and knocks like crazy.  The gear stick swings side to side violently during accelerating....  Not sure what to look for next. I suspect a bad prop shaft uj joint so  may need to have the prop rebuilt and rebalanced.   What else could cause such a problem? Any ideas ? Thanks 

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No haven’t checked engine mounts  yet.  What would be a ideal way of checking them?  Thanks 

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Thanks have checked mounts.  Gearbox mounts are good. The near side engine mount is weak with some movement. 

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