Join Date: Jul 2002
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stuffing box blues
PB Blaster is an excellent penetrant. In cases like yours (or when extracting a stainless fastener from an aluminum spar, e.g.) spray thoroughly and wait; a day or more is appropriate IME. (Auto stores typically carry PB).
I''d suggest borrowing some monkey/plumber''s wrenches. Set up the wrench for the adjusting nut so that its handle is wedged against the turn of the bilge, the side of the sole opening or something else immobile, if possible. Be sure both wrenches are set up correctly (the locking nut is quite thin and so you''ll need to align the wrench''s jaws carefully so as not to overlap the adjusting nut) and tap on the moveable wrench that''s gripping the locking nut with a hammer. If no initial success, consider spraying again and giving it another day.
Once you break the locking nut free, consider cleaning up the nut faces and sides thoroughly (stainless brush, large grit emery paper) and then applying a small amount of Marinelube or other grease before retightening.
Don''t forget to note in the maintenance log the size packing you end up using, something I always seem to neglect doing. The PTFE-laden packing is better and the special ''green'' teflon dripless packing (which you beat into a small roll and use as the middle of the 3 rings) is superb stuff.