I vaguely remember a article in quasimotors about this.
Try popping the cover at the back of the engine bay off and seeing whats what in there. My guess is that the upside down dorade vents at the bottom are clogged up and that compartment is filling up with water.
Try popping the cover at the back of the engine bay off and seeing whats what in there. My guess is that the upside down dorade vents at the bottom are clogged up and that compartment is filling up with water.