I dunno, I'm taking a little closer look last night at my disasambled motor, and all my water passages are coated with shiat, I guess you could call it sand but it's a little grittier than sand. All the steam holes in my heads were plugged up. I don't ever beach my boat. When this motor was in my tahiti I used to use the motor to push it the last couple inches on my trailer, until I read on here not to. Any thoughts? options? opinions?