Greased and cleaned seasonally. PS, in your case, with such a large bearing
surface, use very light grease. Synthetics resist drying out better than
petroleum greases.
Steve

"Robert or Karen Swarts" wrote in message
...
I am reinstalling the rudder on my 25-footer. The rudder post is bronze
tube riding inside a second bronze tube permanently installed in the hull.
There was no evidence of grease on either when it was removed. Should it be
greased before reinstalling?

As a general rule, should metal parts that reside partly or completely
underwater, especially salt, be greased?

Bob Swarts