Re: 9.5 hp 1966 mdl 9622a lower gearcase

[CHUCK]

quote Theodore:

I don’t know that it’s happened here, but it seems that the 9.5 is the engine most likely to have its driveshaft rusted into its crank. Why does it happen, and what can be done to prevent it?

Seems that I have read here that it is (or might be) because of how low the powerhead is to the water. Makes some sense I guess. Preventing it would include seeing that the o-ring is there and in good shape….and that the splines are greased in their grooves (not on top). Bi-annual waterpump service should include this step. Motors that receive frequent maintenance probably won’t have an issue. Lets hope 🙂

I just got finished dealing with the same issue on one of my newly acquired 9.5’s…..

I ended up seperating the exhaust housing from the powerhead and in the quarter of an inch gap there I managed to insert a pry bar and apply enough force that the driveshaft pulled through the water pump. Lost a water-pump housing but then at least the entire driveshaft was available. I attached a pair of vice-grips mid-way up the shaft (protected a bit by a rag) and started tapping.

Of course; to do that you have to first seperate the lower cowls and remove the powerhead-exhaust housing as an assembly. People talk about how hard that is. It’s a bit involved…..but not all that bad actually.

She freed-up 🙂