I am preparing to replace the transom in my outboard boat. My transom rot appears to have started around the through the transom mounting bolts (175 HP Merc engine). I have gathered from this forum that this is a common problem. Is there any thing that I can incorporate in my new transom design to help eliminate this source of future problems? I am playing with a way to sleeve the hole, possible by utilizing a transom cap or metal plate with tubes welded to it flush with the exterior side. The tubes would need to extend slightly beyond the interior side of the transom. Over size washers could be placed over the tube to provide a surface for the mounting nuts to tighten against. This would also provide a means of caulking around the tube. It would be a simple matter to seal the cap with tubes to the outside of transom. This design along with the sealant normally used on the bolts should provide a better seal. Any water that makes it way through the sealant would follow the tube into the splashwell or bilge of the boat.
I welcome any comments on this possible procedure or any suggestions on a better way of doing this. Maybe I am being overly concerned with this problem, if you think so, tell me.
I welcome any comments on this possible procedure or any suggestions on a better way of doing this. Maybe I am being overly concerned with this problem, if you think so, tell me.