I had a persistant leak we traced to a leaky stern tube two years ago. To get at the tube I pulled the generator, cut out the "flat" over the hull v and dug out the wet stinking and I mean stinking foam. Next pull the shaft and plug the aft end with a plumbers plug used to pressure test domestic drain and vent systems. Then made up a fitting to fit the stufing box hose and added 5 pounds of air. The leak was obvious.*
Next step was cut out the tube with the sawzall. That tube looked like it was made in the shop by wraping glass around a pipe. Bought a fiberglass tube from Nor' Easter Yachts,*http://www.noreasteryachts.com
They can make almost any type of tube you want (no connection to them) at very reasonable prices. At this point Seaport Marine in Stonington, CT took over and did a great job of installing the tube in perfect allignment.
1. Old tube before removal looking forward.
2. Looking aft after removal
3. Part of old stuffing box
4. Hole in old tube
*Will have to get a shot of the finished job.
-- Edited by Datenight on Monday 27th of February 2012 10:01:22 PM