Looking for recommendations on a solid and reliable Cummins mechanic to do a general check, injector cleaning, etc on my 330 Diamond Series diesels. I'm at Elliott Bay Marina and would be grateful to get info on a mechanic you are comfortable working on your own engines. Thanks!
Btw my new to me boat came with around 600 hrs. Both engines leave black soot on the sides just aft of the exhaust openings. Seems like the engines are running rich.

Btw my new to me boat came with around 600 hrs. Both engines leave black soot on the sides just aft of the exhaust openings. Seems like the engines are running rich.

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