So I have removed the rudders and have them in my basement, and went to West Marine and paid a small fortune for West System epoxy and some thickened epoxy to repair the rudders, and a small can of "boot stripe" Interlux white paint. They didn't have hot pink on the shelves.
The previous owner(s) had epoxied the rudders without removing them, and had gotten epoxy on the lines, so while I could unknot them, the braid around the lines was completely inflexible at the holes in the rudder and I couldn't pull them out. So I just cut them, I'll buy some new lines later. Not sure exactly how I'll get the knotted line out yet...
Anyhow, the rudder is delaminated near the top where it rests in the top part of the kick-up system. There doesn't appear to be any rot, but whatever glue was between the boards must be disappearing. See the pictures below.
On the port rudder you can only see the delamination on one side, the starboard you can see it on both sides. There is no flexing though, I can't move the delaminated portion at all, so things aren't too bad.
The port rudder actally had a chunk cut out and replaced, as you can see in the photo.
So I'm wondering if I need to cut these portions off and re-laminate them (with epoxy?), or if re-coating with epoxy is sufficient. The section that's delaminating doesn't appear to do anything except make sure that the knotted end of the rope doesn't yank out. That knotted end doesn't really serve much purpose, except to keep the end of the line out of the water - the wood around the holes where the rudder is actually lifted up is in perfect condition, as is the wood around the pins.
Starboard rudder, pic #1
Starboard rudder, pic #2