Our flybridge steering unit is leaking like a sieve again. Pools of steering fluid in both forward corners of the flybridge. It just runs right out the center of the shaft.

My mechanic tells me it's not a user-serviceable unit and that if it's leaking that bad I need to disconnect it and send it in to be rebuilt. Previous owner says that's already been done "by the best shop in Florida" and yet it still leaks like a sieve. Guy behind me on the dock says he has a Hynautic system and parts are still available.

This is currently my number one to-do item, so any advice is appreciated.