
9610 Commonwealth Ave., Jacksonville, FL 32220
Biscuit
BOAT:
Biscuit, a 1974 Cape Dory Typhoon
Project Detail:
Timeline:
Mid-October through TBD
Project Scope: Bottom job (stripped, barrier coat, and new antifoul), hull and deck paint, structural repairs, new brightwork fabrication, assembly and varnishing, mast and boom paint, new deck hardware, more tbd.

Project Hours:
Fabricating Seacock Backing Plates (3-24-25)
Mar 24, 2025
The interior molded liner beneath the companionway had been ground out, removing all of the damaged and cracked fiberglass, and then re-glassed and faired. The interior liner was then drilled out for new through-hull fittings and designated locations (where the new seacocks would be installed). Meanwhile the new seacocks, through-hull fittings and 90-degree hose barbs had been ordered...and were being delivered today. With the arrival of the seacocks, and kit, I could not resist heading out to the shop to fabricate the new backing plates.
I had some leftover 1/2" G-10 material from a previous job hanging about the shop for far too long, so I nominated it for backing plates. The triangular bronze flange of the new seacocks were just under 4", so I measured and removed 4" backing plates from the G-10 material. I used a 4" hole saw to mark the center point with the drill bit, and then just touched the flimsy hole saw to the G-10 to mark the cutout line for the jigsaw. Prior to cutting out the 4" circle, I used another hole saw to remove the interior hole for the through-hull fitting. Once the through-hull fitting was removed, I proceeded to remove the 4" diameter backing plate from the G-10 blank with a jigsaw and metal cut-off blade.
Once the backing plates were freed from the larger blank, I sanded the surfaces to remove the factory finish and rounded the edges. I wiped them down with acetone and set them aside to carry home for a test fit with the newly arrived hardware. Installation upcoming...
Total Hrs: 1


