Water pump – Thermostat

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  • April 30, 2024 at 7:24 pm #287464
    Danny Wheeler
    Participant

      US Member

      Hey Guys, I have a Evinrude Sportster 72 model.I haven’t used in a long time.I gave it to my son and we have been trying to get it water ready.I can’t remember if water supposed to come out all the time or just when the thermostat opens.Welcome your thoughts on this. It is 25 hp. I put a impeller in it when I first got it and only used 4-5 times since then . Thanks !!

      April 30, 2024 at 10:20 pm #287470
      joecb
      Participant

        US Member

        Should be seeing some water spitting out with the exhaust even with the thermostat closed. Once up to temp and the thermostat opens, you get a full flow.

        Joe B

        May 1, 2024 at 3:57 pm #287481
        frankr
        Participant

          US Member

          The 25hp has two flow paths. Only one of them is thermostat controlled. Water flows through the other one all the time. You would have to be pretty sharp to detect the difference. So flow any time it is running is my answer.

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