What just happened to my Newport 28?

[d8taslay3r]

I was on the water today in my Newport 28 under power, when smoke started to come from the engine compartment. Water was gushing everywhere in the engine compartment. I shut off the engine and had to get a tow back to my slip.

Please see the attached pics. It looks like a cloth covered hose that goes to the propeller (maybe???)and maybe water intake for engine separated.

I have this boat on an inland lake where nobody wants to work on sailboats or inboard engines. Any help is much appreciated.

Boat has an inboard Universal diesel.

[Calif.Ted]

That thing wrapped with white insulation is your exhaust elbow and it has broken.

[Uncle Bob]

Originally Posted by d8taslay3r

I was on the water today in my Newport 28 under power, when smoke started to come from the engine compartment. Water was gushing everywhere in the engine compartment. I shut off the engine and had to get a tow back to my slip.

Please see the attached pics. It looks like a cloth covered hose that goes to the propeller (maybe???)and maybe water intake for engine separated.

I have this boat on an inland lake where nobody wants to work on sailboats or inboard engines. Any help is much appreciated.

Boat has an inboard Universal diesel.

Hi, engine exhaust pipe (wrapped in fibreglass insulation) has broken allowing exhaust and its cooling water into the engine compartment. Not really a big deal, remove the exhaust section and find, or have made a replacement section and all should be good again.

[d8taslay3r]

Thanks Uncle Bob!

[JPA Cate]

@d8taslay3r,

One of our engines had a big iron casting exhaust elbow, which leaked. Jim made up a new one from stainless steel and it lasted the life of our ownership of the boat. Maybe you could have a machine shop weld one up for you, if you do not have welding skills.

Ann

[gonesail]

you are lucky it wasn't salt water all over your engine room. good luck with your elbow replacement.

[leecea]

In the car world there is some debate about exhaust wraps and whether they cause damage. Is wrapping the exhaust elbow common?

[skipperpete]

Originally Posted by leecea

In the car world there is some debate about exhaust wraps and whether they cause damage. Is wrapping the exhaust elbow common?

I agree about wrapped and corrosion damage but I can’t explain why the damage occurs. On our dry turbo’s and exhaust systems there is always thick flake rust on the pipes and scroll housings. The only small marine engine that I’ve seen with a wrapped pipe to injection point from new is Beta and almost all yacht engine turbo’s are watercooled but bigger Kw engines often have turbo jackets.

[ItDepends]

Originally Posted by skipperpete

I agree about wrapped and corrosion damage but I can’t explain why the damage occurs. On our dry turbo’s and exhaust systems there is always thick flake rust on the pipes and scroll housings. The only small marine engine that I’ve seen with a wrapped pipe to injection point from new is Beta and almost all yacht engine turbo’s are watercooled but bigger Kw engines often have turbo jackets.

It is normal to insulate dry exhaust sections. Diesel exhaust is extremely hot, it can be close to 1000 F. An exposed exhaust pipe would be an extreme burn hazard to people, and would add a HUGE amount of heat to an engine room.

Do NOT skip insulation of the dry sections of your exhaust. Some engine installations have a dry riser that makes water back flow into the engine less likely. This needs to be insulated.

Once water is injected, there is no further need to insulate.