Trying to determine pitch on my prop

[digger658]

I have a '86 Evinrude 40hp that needs a prop. I know it is 3 blade, 13 spline and 12" dia. but don't know the pitch. The hub is stamped Michigan 01203o. Could this be a 12 pitch?

Thanks

 

[craze1cars]

Re: Trying to determine pitch on my prop

Well....the fact that you say it's 12" diamater is throwing me off for sure. Did you measure it or are you just estimating? Everything else makes sense...012030 is indeed a valid Michigan Wheel part number...has 13 splines...fits Evinrude of your size/vintage.

http://boatpropellers.iboats.com/Michigan_Wheel-Michigan_Match_Aluminum-Propellers/012030/

Says it's supposed to be 9 1/4" diameter and 12 pitch.

 

[digger658]

Re: Trying to determine pitch on my prop

I'm not sure of the dia. I measure from the center of the hub to the tip of one blade and it was 6", then multilpied by 2 = 12". Is that right?