Exhaust coming out of a two ports.
- Thread starter Peter B
- Start date
Frank Langer
1984 Ericson 30+, Nanaimo, BC
The water out of the white one on the left is usually much less than the one on the right, the larger exhaust, and that one looks much less than mine on our 1984 E30+. I'm guessing your exhaust is blocked somewhere, which usually requires some problem solving at each section along the way, possibly the exhaust riser. I would expect that your engine might begin to overheat. Others will likely also have some suggestions.
Frank
Are you sure you don't have a leak in your raw water system that's putting water in the bilge? The exhaust stem is pretty straight forward. Having exhaust come from an unexpected thru hull is really strange. I would think there has to be a leak or a crossover between systems (non factory installed)
Identifying the thru hull the excess water is coming from is probably the next step.
Identifying the thru hull the excess water is coming from is probably the next step.
Frank Langer
1984 Ericson 30+, Nanaimo, BC
The smaller amount should be coming from the exhaust vent hose that normally has a T fitting on the underside of the cockpit floor and discharge through a small hose on the transom. If your water is coming from the bilge, that's a different problem. Either way, the main water exhaust should be more forceful volume.
Frank
Frank
Universal small diesels, including our former M25xp, had a "syphon break" small hose leading to a small transom thru hull, and it "peed" a small stream of water all the time the engine was running. Optional for our new Betamarine, so I did not install one.
The most water, by a fair measure, should be coming out of the exhaust fitting.
The most water, by a fair measure, should be coming out of the exhaust fitting.
Last edited:
Good point frank, I forgot about the vent line! Is the vent before the water injection point?
Frank Langer
1984 Ericson 30+, Nanaimo, BC
Not sure where it occurs, but you can see the hose coming up from the exhaust riser to the underside of the cockpit floor to a T fitting, then that hose goes out thru the transom. From your pic I'm concerned about the low volume of the main exhaust, suggesting to me there's a blockage in the exhaust riser, heat exchanger, muffler or exhaust hoses, maybe from carbon buildup, corrosion in the heat exchanger or kink in a hose.
Frank
Yeah that seems like too little water coming out the main exhaust Otherwise its normal if that you have the siphon break mentioned above.
Here are some photos of what the siphon break looks like inside.
ericsonyachts.org
Here are some photos of what the siphon break looks like inside.
Seawater not pumping through engine
It sounds like you've covered the likely suspects on the inlet side barring something like a jellyfish flapper valve. But rather than start at the discharge of the pump, I'd disconnect the water to the exhaust mixer and check there. That is an area where carbon/Salt/Crud can build up and block...