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Powerboats
Boats and Watercraft

What does it mean when the gears don't engage on a 1977 mercury boat?

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Wiki User
September 14, 2011 12:51AM

Adjust or change the cable that goes from the shifter to the transmission or engine, unless it is an outboard, and then I am not sure.

On the outboard, as already mentioned, check the shift cable first. If no problems are observed, the the problem is most likely in the gearcase. If the gearcase has been removed, it is also possible that the shiftshaft is not properly, or at all, engaged with the lower shiftshaft. Should the above checks prove ok, then worn gears, clutch, or internal gearcase damage is probable.