Join Date: Feb 2010
Location: Narragansett Bay
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Re: 2007 Beneteau 343 engine noise
Possibly the damper plate.
Had an engine once that would sound clunky on start up, then settle down. Turned out it was pieces/parts of the broken damper plate that were rattling around, until they got stuck somewhere in the rotation.
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In the harsh marine environment, something is always in need of repair. Margaritas fix everything.