1964 evinrude 18hp fastwin prop


Old 05-17-09, 08:53 AM
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Join Date: Mar 2007
Location: cicero
Posts: 97
1964 evinrude 18hp fastwin prop

I'm wondering if anybody knows what pitch this motor takes and i have found out that the prop size varies from 7'-10'. how do i know what prop to get, there is no #'s on the prop itself, and i would like to get more speed out of this ol girl if i can
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Old 05-17-09, 11:27 AM
Join Date: Jul 2008
Location: Montgomery MN
Posts: 541
You can measure the diameter of the prop, but I'm not sure how to measure the pitch.

Do you know where your rpm is now, this has a big factor on prop selection. If it's over pitched it will bog and be slow or if it's under pitched it will rev to the moon.

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