Hi Mike
Not sure I fully understand. How does turning the rod tighten things? There should be some sort of turnbuckle or threaded device somewhere. Issue of corrosion of rod head (stainless) and aluminum block? By chain plate are you referring to some sort of block that the rigging attaches to? When the rig is tightened and tuned it will lift chain plate and remove the slack of the tie rod. More info please John Read Legacy III 1982 C&C 34 Noank, CT
