Wednesday, April 30, 2014

Unchain My Heart (Or At Least My Centerboard)

To quote Dr. Henry Jones, Sr., "this is intolerable."  With the days getting longer and the weather turning finer, being precluded from sailing by Solitude III's jammed centerboard is becoming increasingly annoying.  Thus, fixing this problem has scaled my priority list with astounding alacrity.

I made my first attempt to fix the centerboard just over a week ago.  My goal was to check for any debris that might be jamming the board.  My original plan had been to careen the boat, and thinking it through all winter, I couldn't come up with a better idea.  But then, just a few days before I was ready to make my attempt, I realized that maybe I could get sufficient access just by heeling the boat over dockside.

Solitude III with all or her ballast and gear removed.
So, I dropped the boat into the water, pulled out the internal ballast, anchor, and other gear, secured a line to the masthead and hauled her over onto her side. I figured that with the 200 lbs of internal ballast removed,  I would be able to get to boat on to her side without any additional tackle.  Well, I was wrong, and that 100lbs of ballast cast into her keel kept her on her feet.  Fortunately, while I was struggling, a nice couple came by and lent a hand.  Soon, we had a 2:1 tackle rigged and between the three of us, got the boat heeled over to where her portlights just kissed the water.  The bottom of the centerboard trunk was still about 2" under water, but it was close enough.

In the end, she was actually heeled over a little more. 
With the boat on here side, I waded into the water and set to work. Between prying with a screwdriver and applying excessive force, I managed to get the board all the way down. The was a little bit of seaweed and the like on the board and in the trunk, but nothing major. I cleaned it as best I could. I then tried running the board back in. Still stuck. In fact, it was a pretty big struggle to get the board all the way back in the trunk.  Well, that was enough for one day.

The sticky centerboard is visible just beneath the water's surface
In my mind, I've eliminated lodged debris as a cause for my centerboard woes. So, it's likely that there was some water intrusion into either the centerboard or the centerboard trunk that caused the wood to swell.  I didn't really investigate it closely enough at the time, so I don't know whether it's on the board side of the hull side, though on reflection, I'm leaning toward the latter. If it was the board, I would have expected that spending a 5 months out of the water would have dried it out a little. On the other hand, the bottom of the centerboard trunk sits in direct contact with the keel trough on the trailer. Despite the cover on the boat, I can easily see the carpeting on the keel trough being continually damp throughout a rainy Pacific Northwest winter, and (assuming the not-unlikely scenario that the epoxy got sanded through somewhere around the centerboard trunk opening) water wicking up and into the sides of the centerboard trunk.

As far as next steps go, I'm planning on trying to get some ventilation going in the centerboard trunk and see if that helps.  I will then dunk the boat again and (unless the problem has magically gone away), do some more careful measuring and diagnosis.   More to come.


  1. Dear Dr.:
    Its been a long time since I built or repaired a wood w/ glass over. I can only tell you of my experience. I ended up unscrewing the board box from the boat then separating the box to get at the center board. After getting it all apart I had to rebuild a center board - this time out of aluminum. It seems that the board made of wood swell to the point that you and I have experienced. I never again had a problem with my center board.
    Good luck and many blessings to you.

  2. Well, I know it's not the best situation,but... she's still a really pretty boat.

  3. I really like boats and your boat is beautiful! Thank you for recording your journey in building it. You are super! :-D

  4. That is quite a mess. Have you fixed it up by now? Having a jammed center board is not the easiest thing to deal with. And if the damage is quite bad, you may have to replace it. Anyway, good luck on the repairs!

    Kent Garner @ White's Marine Center