Re: Mercury Mark 5 gear case cover

[A. Hoskins]

With the tool in place, install a small pipe sleeve over the prop shaft and install the prop nut kinda snug so the tool can’t rise. I would flood the O.D. of the cover with penetrant and apply just enough heat to the outside of the area to make the stuff boil. You could always drill another couple of holes and even if you go through, you can plug them. Easy does it.

Certified JB weld