Reply To: Merc 39 oil seal

[A. Hoskins]

Ah Ha, that “nut”. I made the tool to do the job. I cut a 2-1/4″ (approximate) diameter disk out of 1/8″ flat stock and ground away the circumference to make the four “teeth”. Then I drilled a hole in the center and attached a 12″ long handle to it, also 1/8″ flat stock. With the tool in place, put a sleeve over the prop shaft and the prop nut on the end to keep the tool from rising. Be aware that the “nut” is left hand thread. If I remember right, Merc 39,40, 60, 75 and 110 all used basically the same lower unit.

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