prop help needed

[dadymat]

I never knew choosing a prop would be so mind numbing...lol, a lot more technical than one would think....need help choosing prop for 2002 22' crest pontoon w/ 2002 Mercury 90hp 2 stroke motor ...cant make out part number on existing prop has been sitting and is corroded and in very bad shape...any help would be appreciated

[RobZ71LM7]

This can give you a good starting point:

https://www.mercurymarine.com/en/us/pro ... #/step-one

That and info from others in here should help you nail down a good initial guess.

[dadymat]

This can give you a good starting point:

https://www.mercurymarine.com/en/us/pro ... #/step-one

That and info from others in here should help you nail down a good initial guess.

thanks for response, that Mercury page is what started my confusion, my results ended with 4 choices ...all different pitches....14, 16 and two 15s..some 3 blade some 4.....not sure how that can happen lol

[Scott1]

You need to know the pitch of your prop now and you should be able to nail it. Merc will give you different choices for 4 blade or 3 blade. I run 3 blade so I ignore the 4 blade recommendations.

If you don't know your pitch, that calculator will not get you close enough.

[Waterlogged]

14, 15 and 16 sounds like a lot of pitch for that set up. Maybe with your WOT RPM someone could give you a starting point.

Glenn

[dadymat]

14, 15 and 16 sounds like a lot of pitch for that set up. Maybe with your WOT RPM someone could give you a starting point.

Glenn

WOT RPM is 5000-5500

the numbers on the prop (i think) i can make out are 4877 8(?) 1(?) 2A4 5(?)15(?)