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Yanmar injector pump fail?
I have a 2010 Bene 43 with a 4 cylinder, normally aspirated diesel with less than 120 hours. A couple of months ago, I was coming back from Annapolis to Balto, and began to have lots of white smoke at 2500 RPM, slightly less at lower RPM.
In dock, I checked the engine, and several of the coolant water lines were loose at their attachment points with loose hose clamps. I tightened every hose clamp on the engine (!) and the problem seemed to be solved.
Two weeks ago, returning to dock under power I had lots of white smoke again. In dock, I checked the clamps again. All tight. Checked the fuel pump. Pumping strong to the injector pump. It seems, though, that the injector pump is not pumping fuel to the injector rail.
So, do I need to replace the injector pump? Can it be re-built? I bought the boat used, and unfortunately it is out of warranty....