Has anyone rebedded the fixed ports in the Salon area of a 77-79 Gulfstar 37 aft cockpit? I haven't looked very closely, but I seem to have slight leak in one...as this boat has teak around the ports, you can't stand much of this so I want to rebed...there are no screws on the outside, so it seems one has to work from the inside on these. If anyone has done this, I would appreciate any tips or hints before I tear into them and find out I needed something..