I had a Morgan
24 and now a Hunter
260 which are both centerboard boats.
From your photo
it appears to me that the original construction probably included a fiberglass "nipple" to which the tube for the centerboard cable was attached. This, I believe, is now broken off and so you have roofing tar etc. A "proper" fix would be to remove the tar and pipe and whatever and grind down to the fiberglass, then construct a new nipple using fiberglass and epoxy
. Then the tube could be connected to this using a piece of rubber hose and hose clamps.
That's a lot of work
, and may not be worth it.
A drawback of centerboard boats is that most designs have mechanical components that are difficult to access, exposed to salt water
, and that can lead to a dangerous (sink-the-boat) leak if they fail.