Question on grounding of the anchor post, I have a 2014 C37 and the anchor post is not grounded which I believe is the factory standard approach. I have recently replaced the lower rudder bearing and noticed some minor degradation of the rudder post. Whilst it is easy to run a grounding cable from the rudder post to the hull anode which is located under the starboard bunk, the question is where do you attached the cable on the rudder post?
PS. Please note that the missing gaiter is being replaced AND the autopilot arm was reinstalled AFTER the quadrant was reinstalled in the correct position (as per the Jefa information sheet informing us that several B37s and B41s were installed incorrectly at the factory - mine being one of them!!)
There is no point in grounding the rudder post. It is not galvanic corrosion a the aluminium post is not in contact with anything else metallic underwater. One possible cause of pitting is antifouling paint too close to where the rudder exits the hull. There should be a 10cm circle of non copper based AF such as Trilux around that area. The "anode" is not strictly an anode but the ground for the AC circuit.
Thanks for the clarity on this question, very pleased to hear there is nothing needed. Just had new anti foul done with a 30cm coating of Jotun aluminium surrounding the rudder.