D
David Popken
Thru-Bolting The Grays
is a royal pain in the ass. After three (with two more to go), I think I have the technique for proper alignment if anyone cares. Once you have removed the old ports, carved out the deeper grooves for the new and improved drain spigots, cleaned and lightly sanded both inside and outside surfaces, install the portlight with the outer trim ring in place. Open the port and clamp the assembly together with a couple of spring clamps, or if you are lucky enough to have one, get your assistant hold the assembly together while you drill pilot holes from the inside screw holes through the trim ring, using a drill bit sized so that it does not enlarge the interior holes. Once that is completed, you will have to remove the trim ring and enlarge the holes so that the special nuts will fit flush. From there it's a dry fit of ALL of the 16 fasteners, another disassembly and then, in my case, lots of 5200 and final assembly.
is a royal pain in the ass. After three (with two more to go), I think I have the technique for proper alignment if anyone cares. Once you have removed the old ports, carved out the deeper grooves for the new and improved drain spigots, cleaned and lightly sanded both inside and outside surfaces, install the portlight with the outer trim ring in place. Open the port and clamp the assembly together with a couple of spring clamps, or if you are lucky enough to have one, get your assistant hold the assembly together while you drill pilot holes from the inside screw holes through the trim ring, using a drill bit sized so that it does not enlarge the interior holes. Once that is completed, you will have to remove the trim ring and enlarge the holes so that the special nuts will fit flush. From there it's a dry fit of ALL of the 16 fasteners, another disassembly and then, in my case, lots of 5200 and final assembly.