Re: Bulkhead Problem
I've replaced the bulkheads on my 22 twice in 20 years. Water leaks in through the chainplate through-deck (always seems to be the starboard side!!) and rots the wood. Luckily we've never lost the mast from it as we inspect it periodically. But, it is a serious problem. Best bet is to drop the mast, make new bulkheads and install them. Then clean out the through-decks, and recaulk the chainplates. Then put the mast up and you should be good.
For future reference, if you see evidence of water damage on the bulkheads, check to see if the wood has rotted. If not, simply clean and recaulk the chainplates. Obviously, drop the mast before unbolting the plates or it will drop the hard way.