Whining Noise When Decelerating (Throttling out) 2012 Mercury 50 hp

bbiancos

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Oct 2, 2017
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I just purchased a 2012 Crestliner with a 2012 Mercury 50hp 4 stroke. I noticed when throttling out or going to slow down that I get this whining noise and almost sounds like something is rubbing (https://www.youtube.com/watch?v=ZfK1a5PB7IY). This noise doesn't happen when idling or accelerating and only seems to do it when slowing down.

I recorded the noise and posted it to youtube to give a better idea of this noise I'm talking about. I've talked to the local dealer and they have no idea and I'd rather not bring it in for them to spend hours looking over it. Just changed the bottom end oil and it was clean.

Any suggestions would be greatly appreciated.

Thanks.
 
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