Reply To: 1971 Mercury 110 9.8hp power head

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May 25, 2025 at 6:05 pm #296766
daytonajohn
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    No wedges, no bigger hammer, no prying tools. These aluminum castings can’t take the ham-fisted approach. Loosen the hold down nuts and bang on the starboard side of the engine with your HAND until it frees up. In my opinion the gasket between the power head and the drive shaft housing is the problem. My advice is after the lower unit has been removed which ensures that the drive shaft is not seized in the crankshaft.