RE: SR Mariner Speed Indicator
Rusbet, I don't think the external rust is really relevant.* If the anemometer turns smoothly, it may be fine.* My unit gets has gotten crusty once or twice, and the application of a little WD 40 seemed to do the trick.* You can check yours off a friend's at the same marina, if it's ok, paint the mast and use the one you've got.