again....prop size

[tav]

i'm running a 2003 40 h.p 2 stroke Johnson outboard , we just bought this boat and the prop is pretty worn.

without taking the prop off can I see the number and where? want to get a spare. if they come with different pitches which pitche would give me a better performance?

oh yea....if I do take the prop off will it disturb the seal?

 

[jestor68]

Re: again....prop size

You usually need to remove the prop to see the numbers stamped on the hub. It won't hurt any seals.

You use a tachometer to select the prop that allows the motor to operate within the recommended WOT rpm range; probably 4500-5500 rpm in your case.

 

[steelespike]

Re: again....prop size

Prop size is usually under the prop nut.If you get us your boat size/weight, prop size,rpm and gps speed at wide open throttle(wot).
It will help tell how well your setup is working.