CapeDory28.info

Mechanical - Black Smoke

dorydaze - Aug 05, 2017 - 03:55 PM
Post subject: Black Smoke
I think it's my year for problems.

Underway 15-16 hundred rpms engine runs fine. Pushed it up to 24-25 rpms black smoke comes out of exhaust and it loses power. Changed fuel filter. Still have the same problem. (also black soot comes out of exhaust floats on top of water)

Any Suggestions?

Thanks
Phil
Dorydaze
Seahorse - Aug 06, 2017 - 12:16 PM
Post subject: RE: Black Smoke
Phil,
I had similar problem towards the end of the season last year. Black smoke over 2400rpm and oily sheen coming from exhaust. I wasnt losing power though. I have a 200hp Volvo. I wound up having some work done. Rebuilt the turbo. They said there was a small leak and oil was getting past seal. I also replaced all injectors as they all failed the diagnostic tests and couldnt be rebuilt. I had the aftercooler serviced. No more black smoke. Not sure what fixed the problem or if it was a combination of everything.
dorydaze - Aug 07, 2017 - 10:04 AM
Post subject: Black Smoke
Thanks for the info. I have a mech looking at the engine tomorrow.

Phil
bpikeboats - Sep 28, 2017 - 06:26 PM
Post subject: RE: Black Smoke
Phil,

Do you have any information on replacing spray rails on Cape Dory 28 FB...I have a set of old rails that are like new but not sure how to proceed...how to remove old rails and apply the new?
Seahorse - Oct 01, 2017 - 12:13 PM
Post subject: RE: Black Smoke
Phil,

What did the mechanic find? Did you cure your smoke issue?
dorydaze - Oct 02, 2017 - 11:50 AM
Post subject:
Mechanic replaced 2 fuel filters, adjusted valves, replaced belts & impeller. Smoke has stopped but still a little sheen coming from the exhaust. Boat is being pulled today for the winter. Will address sheen problem in the spring.

Sorry no info on spray rails.

Phil
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