Electrolysed brass - from turning in stainless steel mount
After removing the top rudder shaft the bottom clamp and spigot had to be removed. We ground off some 1/2 inch brass rivets and hammered them through to allow the bottom of the rudder to slide out rearwards.
On removal the bottom brass spigot that turns in the stainless rudder mount crumbled and fell onto the slip.
A new clamp and spigot was manufactured from 316 stainless steel in one piece which should be stronger and more durable.
From Peter Robyn June & July 2016