When I put the boat in gear (2008 malibu 247 with a 383 hammerhead, by the way) and barely idle forward, such as when docking and such, I hear a slight grinding noise. It sounds as if the prop shaft isn't lubricated well, or just rubbing against something. However, once I give it a little bit more throttle it goes away and is quiet as can be. It doesn't sound like any gear grinding, but rather the drive shaft or prop shaft or something rubbing against something else. Any ideas? Thanks everyone.
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