Join Date: Aug 2002
Location: Gloucester, Mass. USA
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Rep Power: 13
Thru Hull Removal
If it is not the type that is recessed into the hull, you''ll be able to it. The type that stands proud of the surface has no shoulder underneath. But before you get started, be forewarned: Grinding bronze and brass generates a lot of heat! Enough to easily destroy the surrounding materials, be it fiberglass or wood.
I would recommend instead that you go through the trouble of trying to get a few turns of the nut off and push the fitting out a bit. Then you should be able to get a long saws-all blade or a hack-saw blade in between there to chew away at the thing without doing irreparable damage to your hull.