1972 Mercury 85hp will not go over about 5mph?! Thinking a sheared pin?

[AMD Rules]

Your prop hub is shot.

Mark a line from the inner hub assembly to the outside. Run it, and if the line isn't aligned afterwards you can be sure its the prop.

Not difficult to repair. Your local dealer or prop shop can have you back on the water in no time.

There is no shear pin on your motor. The rubber hub mount meets that purpose. Drive shafts are splined.

Good luck.

 

[timmathis]

Re: 1972 Mercury 85hp will not go over about 5mph?! Thinking a sheared pin?

sounds like said above. Spun hub. Ask your local marine shop if you have a prop shop in your area.
Tim