Loren, I am hoping that the keel does not have to be dropped, from what I understand that can be a horror story. My previous boat was a '72 Tartan 30 and after many years it developed a leak coming through the keel bolts, under heavy sail conditions, not just sitting at the dock. I had my yard remove all the keel nuts, repack the caulk around the nuts, reinstall the washers and nuts to the proper torque, no help. The next step was dropping the keel and that was scheduled to cost at least $3K if all the keel bolts were OK. Much more if some had to be replaced, another horror story. Stories abound in the Tartan literature of removing all the nuts, lifting the hull in the travel lift and the keel not breaking free, chain saws, hammers and chisels, etc.
I am not sure I have really have a leak there, the leak developed only once before my scheduled haul out for a bottom job. I do see a crack around the front and rear of the hull/keel joint and after some mildly aggressive grinding with a slow drill and blunt, rounded coarse bit, the exposed crack now extends to about half of the chord on both sides. With a pick, I removed all the loose material and how plan to have the yard grind out the crack, fill with something and maybe apply fiberglass cloth covering the crack. The E34 manual mentions this step as a possible annual maintenance procedure. With my Tartan experience, I am skeptical.
Any suggestions as what to use for the flexible filler, 5200, 4200, Silkaflex 291, West GFlex??
Also the torque specs online say for a one inch SS bolt, tighten to about 250 ft lbs, that takes a gorilla?