Centerboard Issues!
First, I noticed that one of the bolts securing the padeyes for the raising and lower mechanisms was loose (explanation: On the part of the centerboard that sticks up as a lever to raise and lower, there are padeyes on both sides for blocks; on mine, these are on opposite sides of the lever so two bolts, each going completely through the lever, are used to hold the padeyes). I had a pliers on board and went to tighten it, and the bolt broke off. I removed the bolt at home. I am thinking this is an area of high loads, so my plan is to drill out a larger hole, fill with epoxy, and then drill a new bolt hole. While I'm at it I might as well do this for the hole for the other bolt holding the padeye. I don't know if this is overkill--I know epoxy gives waterproofing, which might have been the culprit, though I doubt it in this area of the boat. Does expoxy give better holding power here?
Second issue. The centerboard is wiggly, meaning you can move it back and forth when it is up. It also vibrates as certain speeds and points of sail. However, when you lower it, it does stick a bit. Then, under sail, it is very difficult to raise up. I learned this as I was experimenting with raising the board a bit on a broad reach. I think, but I'm not certain, that the board was tight because the slackness side to side lets the board get wedges on a slight diagonal as the boat is being pushed sideways. Does this make sense as a cause? And is there any danger here, seeing that it has been this way since the initial build 20 years ago?