3jh3e

  1. J

    Two sides to 3jh3e engine coolant pump?

    Good morning all, I'm hoping for confirmation that my Yanmar 3jh3e freshwater/coolant pump actually has two parallel loops/sides: 1) an engine coolant side, and 2) a "domestic hot water" side. (I completely understand there is a RAW water loop, with it's own pump, that goes to the heat...
  2. J

    Seawater pump replacement on Yanmar 3JH3E

    Hi all, The Hunter 380 that I bought last year has a defective rim seal for the seawater impeller that mandates a bead of gasket caulk to keep it from leaking. I also am concerned the broken edges might eat the impeller. I'm thinking to replace the whole pump but not seeing how to access the...
  3. JimP

    Yanmar 3JH3E Parts Catalog

    I was able to get a copy of the Yanmar 3JH3 parts catalog. I'm updating all the hoses on my new to me '03 H386. The engine is low hours <850, but the hoses all look factory original with the silver paint flaking off. (Personally I am not a fan of painted hoses) Since I'll have all the hoses...