Home › Forum › Ask A Member › Mercury Mark 25 Prop Adaptor › Re: Mercury Mark 25 Prop Adaptor
January 27, 2018 at 2:16 pm
#70267
You should be able to run a cross pin prop as long as the I.D. of the replacement prop is same as the O.D. of the splines and the two pins fit in the recess of the replacement cross pin prop and the rotation and length fit the Merc. I had an adapter made for a Merc Silent six that allowed me to run 3 blade Zephyr prop that was 1-1/2" larger pitch than the stock Merc prop in a 6 HP race a local PA chapter race.
Don