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I have a johnson 50 hp outboard when travelling in excess of 5 knots the prop stops turning and motor revs high.

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In the hub of the propeller is a rubber bush that stops damage to the shafts and g/box if something is struck with the prop.These bushes do give way and are repairable.See your local boat shop or look for a specialist propeller shop.Probably the latter as the boat shops sends the props to them anyway.Its called the propeller hub bush or just the prop bush.Just take the prop into them and all will be good.Hope this helps you

Posted on Nov 20, 2009

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