Originally Posted by stillbuilding
At the risk of pinching the thread, Del can I ask if the exhaust fumes are a problem with your North Sea arrangement? Your arrangement is what I had planned but even Gerr has mentioned that some owners had had a problem with this exhaust. Just wondering.
My exhausts are fairly far aft and is directed downward
. I haven't experienced any fumes except when tied to the dock
, on the dock side
, when I'm on the dock. But I'm not there long if the motor
is running, I'm preparing to shove off.
If I'm sailing and the port or stbd exhaust port is under water, and with the Vetus thruhull fitting
, it acts like a siphon and pulls any residual water out.
When I'm motoring slow the fumes just trail aft and away as you can see the carbon trail in the picture. Motoring at hull speed
both exhaust ports
dip just below the water line, and again the water is siphoned out.
A sea hitting on the quarter might go up into the exhaust port but would most likely go out the other side before it could get to the top of the riser, which is about 18" above the motor
exhaust riser and 24" above the Vetus wetlift.
As well my "T" in the middle is actually a "Y" and about 12" higher then the thruhulls, due to the shape of the aft section, which means the water would have to go up hill to get to the center.
BTW the upper thruhull fitting in the picture is the cockpit
stbd drain, and the two holes aft are bilge pump
outlets, which also have a riser just before the exit (incase there is curiosity).
I have an older fitting w/o the butterfly.