Since, I had my1997 SeaRay 5.7 with BRAVO III outdrive I had to replace the water tube that goes from the Bell Housing to the Gimbal Housing mounted on the transom 2 times. This made me think of why do we need that water path. Can't we just go through the bottom of the boat with a water line to a strainer then to the pump like on an inboard engine? Is it necessary to have the water go through the outdrive to keep it cool?
The last change done this week showed that the hole were the hose go through the Gimbal housing is getting bigger as a result of corrosion and age. I will cost a lot of money to replace this housing if I have to. Outdrive has to be removed, engine has to come out and then the Gimbal Housing has to be removed and replaced and hose replaced. It looks like Mercruiser wants to sell the whole Gimbal Housing and Bell housing asembly as 1 unit with the Hydrolic lifters mounted. I just replaced my lifters last year, ouch!!!
I don't want a water leak or an air leak in the water line as a result of a poor connection so I got to figure the best way to do this.