The area was cleaned using dishwasher detergent to break down all of the old oil, grease and smells and did a great job as you can see. I uses a toilet brush (NEW!) to get into all the nooks and hard to reach places, and was topped off with a gentle rinse from a jet washer.
With help of Practical Boat Owner forumites and Cox Engineering we figured it out.
I finally got round to removing the whole of the tube and bearings. It was a Stuart Turner type glassed in at the inboard end so was not serviceable. It uses white metal bears that have to be lathed out, and then recast and turned! I will be replacing with GRP tube and composite bearings at the outboard end. It will be a water-cooled PSS shaft seal at the inboard end.
Here are the before and after photos!
|Before steam jet washing!|
|After dish-washer detergent and Jet-washing!|