I am running an old SMC 43 9 x 10 prop on my 1958 18HP Evinrude 15024. The boat is a Lund C-14 Aluminum. The max HP is 20.
Last week, I decide to try a new prop I purchased on eBay (there is another thread for that topic), and marked the back of the inner hub and prop with a sharpie to see if...