Recently observed water in excess under the floorboards of my First 310. Tracked it to the rudder post sleeve. It appears that the sleeve is made of polyurethane and is clamped in two places, the lower clamp fixes the sleeve to the fiberglass well in the hull; the upper clamp tightens around the rudder post. Water was "squirting out through the top connection. When tightened too much it hindered the steering motion tending to rotate the sleeve.( not a good thing) Also I observed that the top of the sleeve is below the water line when sailing under power, (back end squats in the water) Has any one else had this problem? Is there a grease packing that should be installed? Or simply pack the sleeve with grease? If so what type should I use? Is ther another fix such as a longer sleeve that would not be under the water line?Thanks for any help/