My albin 43 trawlers port rudder box is leaking. The packing is not? Just the fiberglass block. Don't understand 100%. Should I haul, then grind the glass away I'm that corner then fill and re glass? I don't want to replace the whole box, just splashed the boat after being out for a month to replace all through hull fittings and glass areas where old transducers, through hulls and other obsolete things were. Marina rushed to put me back in, I changed marinas sense then. What a pain in the a$$