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How to determine prop pitch

K

kevin johnson

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" I'm looking to buy a pro

" I'm looking to buy a prop on eBay, but the seller says he cannot find a size or part#. Assuming the printed size by the blades and the part# on the hub can't be read, how can I tell him to determine pitch. He says he's measured the diameter at 13". Is there a measurement of distance and/or angle that I can tell him to perform to find out the pitch?

He says the prop came off a 1977 Evinrude 85HP. So that at least tells me it will fit the 13-spline shaft on my Evinrude 140.

Thanks "
 
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