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I have an 85 HP Mercury Outboard and when you get to about 4000 rpm's it sounds like it is slipping, what can I look for..........

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In the propeller is a rubber hub.It's between the driveshaft and the prop.Its job is to stop major damage if you hit something causing driveline damage.It will be starting to slip.Its called the rubber bush.It will need to be looked at.Take it to a prop shop because if you take it to a dealer,they will take it to a prop shop.More cost.Hope this helps

Posted on Jun 02, 2010

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Posted on Jan 02, 2017

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