End of last year, I used this thread as a reference point for ideas, because the centerboard
on my tanzer 22 had become stuck. I tried using a rod to tap it down. I tried diving
under it and trying to clear of debris. I didn't try to pour chemical in there because I didn't want to mess with that and get toxic substances in the river.
Unfortunately nothing worked, and I ended up not sailing for most of the season.
End of this winter I moved the boat back to portland
and had the bottom painted. Finally fixed the centerboard
The problem? At some point while I was moored in Saint Helens, the river got low enough my boat must've bottom out in the mud or the water was silty enough that the mud and sand collected in centerboard compartment.
Anyway, it fouled the compartment and (I believe) kind of suctioned the centerboard and held it in the compartment. Once on land, simply sliding a small knife up between the centerboard and the compartment allowed the mud to start pouring out and the centerboard was free.
I had to pull the boat out of the water for the bottom paint
anyway, but just a heads up for anyone finding themselves in a similar situation: you can dive under the hull (make sure cables
locked up) and run a thin knife or blade of metal between the centerboard and the housing to try clear any material that might have collected in your centerboard compartment.