I have a 1978 Cal 29. It had been sitting for siix years. The helm wheel is extreamly hard to turn. When I removed the deck access plate there appears to be some water in the tube. I am going to vacume this out. I looked under the deck and had to hang upside down to sprayed the rudder tube with break free lubercant. I then noticed some of the lubercant leaked to the outside of the rudder. Is this leakage a sign of another problem? If I cut a access hole in the birth would it comprise the hull structure? I cannot think of any other way to gain access. Can someone help me please?