TMorgan 400 Fly
New Member
I purchased the 2018 Sea Ray 400 Fly (Sundancer) last May. At that time and ever since seawater collects in the bilge when underway. In addition to simple seawater, I get a fine black particulate that settles out. I vacuum it dry after use, but any use fills the bilge. In the last year, I (meaning MarineMax) replaced propeller shaft seals, cutlass, swim platform hydraulics, trim tab mounts, and underwater lights, and checked all obvious signs of intrusion.
No avail, water still builds and led (I hypothesize) to the failure of my stern thruster from submersion. (So I replaced that, too.)
Before I go to water pump replacement (no harm) and find that's not the issue, or haul out to replace all the through-hulls (which don't leak when not underway, or show evidence of leaking), I have been asking questions of anyone who would answer someone suggested that the source may be exhaust and seawater mix.
In the 400, the exhaust is above the waterline to prevent backflow. But it's not at all obvious to me how I would check this.
Thoughts?
No avail, water still builds and led (I hypothesize) to the failure of my stern thruster from submersion. (So I replaced that, too.)
Before I go to water pump replacement (no harm) and find that's not the issue, or haul out to replace all the through-hulls (which don't leak when not underway, or show evidence of leaking), I have been asking questions of anyone who would answer someone suggested that the source may be exhaust and seawater mix.
In the 400, the exhaust is above the waterline to prevent backflow. But it's not at all obvious to me how I would check this.
Thoughts?