Prop tightness

[rossrips7]

May be a dumb question but when you grab the prop and move it forward and back should there be any play?


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[wakejunky]

It should not. I would take the nut off and pull the prop off and then give it a good push onto the shaft, it doesn't have to be on there tight because it's pushing the boat.

[Blamey]

Google how to lap a prop. Basically you use valve grinding compound between the prop and shaft turn the prop a few time and it grinds down any imperfections between the two.

A well fitted prop should be able to stay in place without the nut. The nut it just added safety but not intended to hold the prop in place.


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[Jonny Quest]

The torque is transferred from the shaft to the prop via the taper. The tapered shaft / prop has increased surface area for this purpose. The keyway is NOT designed to transfer the torque. The proper shaft / prop fit is mentioned above by lapping the two. Several good threads on CCF regarding this methodology. If the prop is easily removed or has "play" on the shaft then it has not been properly fit. That can lead to wearing the keyway on both prop and shaft. A properly fit prop will require a prop puller to remove.

JQ

[rossrips7]

Possible that it could of worked loose somehow since 2002?


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[Blamey]

Possible that it could of worked loose somehow since 2002?


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I don't think so because when running the boat in forward it should push it back into place. Over time there could be some minor corrosion between the prop and shaft affecting the fit.

Take the time to lap the prop. The hardest part is removing the prop and since yours is loose already, you won't have this problem. Buy some valve grinding compound, Prussian blue and a new cotter pin. lap the prop (shouldn't take more than an half an hour) and the prop will fit properly.

[rossrips7]

Thanks buddy. I've been having a vibration from 2-15mph then it stops and I'm pretty sure that's the culprit


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[rossrips7]

What's everyone's thoughts on changing the stock prop but on a 2002 sante to one of the nylon lock nuts. Have heard mixed reviews


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