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  1. Yanmar 3GMF primary fuel filter change

    Diesel
    When I replaced my primary fuel filter, I pumped then priming pump lever for a few minutes but no fuel ever came up through the bleeding screw. I assumed that maybe the little lever did not do anything, tighten the bleeding screw. As suspected, the engine started and soon died because of air in...
  2. Yanmar 3GMF: Mystery Drop in RPMs

    Diesel
    Fellow Sailors, I am perplexed by a drop in rpms on my old (but well maintained) Hunter. Any advice would be appreciated! I noted a drop in the past year of rpms on the Yanmar 3GMF in my 1985 Hunter 34. After purchasing the boat in 2008 (and during summer 2009 sailing), I noted the engine...
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