1968 Evinrude 18 HP Pull Start

Hey Guys,

Been awhile hope all is well - we got a 18 hp short shaft Rude that we took out on the water in some pretty heavy chop and it started acting funny.

We would give it slow throttle and it would push fine...anything much over a "fast idle" and the motor would hi rev..

So I thought maybe a carb issue..turns out there is a problem with the prop..its "slipping"

The cotter pin and screw are fine..its more like the prop is able to move on the shaft when its not supposed to it has some slip in it like something internally has broken and itll move..

any ideas? Or perhaps any way i can explain it better? Its like full throttle the motor will run but the prop doesnt turn.

You have a spun hub in the propeller. Take it to a dealer and have them send it out for re-hubbing. There are several posts identical to yours in here. Your propeller has a rubber hub inside it designed to slip. Old age will make it slip or hitting a submerged object. Bet if you take the prop off you can smell burned rubber.

Yeah that does make a lotta sense. Ill pull it off and see what we can see. Is it pretty pricey to send it off or does it vary?

Usually only about half the cost of a new aluminum prop, or even less.

Great - Thanks Pappy!