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Recent content by Bayliner18

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    7.5 and 9.9 Prop hubs for 1978 -85 Merc outboards

    Does anyone know if Mercury Marine has a way to repair these older 8.75 inch x 7pitch or 9in X 9 pitch props? I have had 3 now with seized props on the splines. Pulling them always destroys the rubber hub. A good used one, seems impossible to find and usually, a new one runs around $110+ and...
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    Upper Shaft Splines stripped (1974 Stringer)

    Yes, I believe his should/could work for a high-profile upper unit provided you started with an equivalent high-profile water pump shaft. (An 8-inch P/N 22411 High Profile OMC #908087). However, the ones I fabricated have been, done (in stages) by 3 different machine shops. My dilemma was...
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    Upper Shaft Splines stripped (1974 Stringer)

    I have a 1974 OMC 120 h.p. with the usual or inherent faulty upper shaft. Every 200 hours, like clock work, they corrode and then strip out. They also destroy the upper splines of the water pump shaft, as well. (Always in pairs.) I have been working on a permanent solution for this. It involves...
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    OMC Stringer Sterndrive 140

    The true culprit is the UPPER SHAFT splines which first, corrode and then strip out taking the water pump shaft splines also. Lasting 200 hours in salt water is about right. The way around this is to rework a used stainless steel water pump shaft with good lower splines.
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