Captain Chris Yacht Services Captain Chris Yacht Services
   
Our Services   Cruising Blogs- Live The Dream Vicariously   Paper or Electronic Charts   Nordhavn 46 Coastal Cruising from the Bahamas to Maine
 
About Us       Delivery       Training Onboard      Testimonials      Training Video's & Ship's Stores      YouTube Channel

Ask Captain Chris

Calendar

Seminars

Photo Log

Favorite Links

Galley Recipes

Maintenance

Newsletter

Home

Find us on
Facebook

Follow us on Facebook

SELENE 47 Ocean Trawler Training With Captain Chris

Kadey Krogen 58 Trawler - Delivery with Owners Aboard

From TrawlerFest to Their Own Trawler!

AGLCA  Great Loop Rendezvous -How We Started Cruising Together

Beneteau Swift Trawler 42 Project Management

Georgia Tech Alum Starts the LOOP Trawler Training aboard a Krogen Express 52

Superbowl, Volkswagons & Trawler Training in Florida

Trawler Training While the Saints Geaux Marching In! Beneteau Swift Trawler 42

What Color Is Your Engine Smoke?

Captain Chris Yacht Services
What Color Is Your Engine Smoke?
Remember, steam is different than smoke.
Additional Images
What color is your diesel engine's smoke? Is it really smoke or maybe it could be steam?

Just like our oil color test (see article What Flavor Is Your Motor Oil?), smoke also gives you clues what may be wrong with your diesel.
  • Bluish smoke means you are burning oil, much like an old car or 2 stroke outboard engine with pre-mixed oil in the gas. 
  • White smoke is unburned fuel. An injector is drooling and leaking liquid fuel into the combustion chamber/cylinder.
  • Black smoke is a sign the engine may be overloaded. But a short puff of black smoke may be common when a turbo charged engine has been running at low RPMs before accelerating. In this case the black smoke is carbon buildup in the exhaust system and acceleration will blow it out and then clean up the color of the exhaust.
An overloaded boat engine may be because the underwater hull is dirty creating drag or the propeller(s) may be fouled with barnacles or crab trap float lines making the engine struggle in an overloaded situation.

In any case you need to recognize the color of smoke and analyze the cause. Learn more at our DIY Introduction to Boat Systems seminars. More information here or call 772-205-1859 and Ask Captain Chris.

Remember, steam is different than smoke.


Get comfortable with your Boat Systems. Join us for our 2-day garage workshop. Ask Captain Chris!
     

Click here for more Maintenance

View other articles written by Captain Chris Yacht Services