Join Date: Jun 2000
Location: CT/ Long Island Sound
Thanked 45 Times in 44 Posts
Rep Power: 18
Re: Sand blasting west Spain
Easiest solution might be hoist the boat and then lower it down (gently) on the centerboard. That should be enough force to free it up, unless it breaks the pivot bolt. Put a plank down on the ground so you don't damage the edge of the centerboard. If it is actually "rusted" as badly as you seem to indicate, I would be looking for electrolysis issues, especially on a boat that had been plugged in at a marina for a long while, or near others that were. Sandblasting can do major damage to a hull if it isn't done properly. Sometimes walnut shells are used instead of sand, to reduce inadvertent damage.