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2005 X45 LQ9 Heater Connection at Engine

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  • 2005 X45 LQ9 Heater Connection at Engine

    I am installing a heater in my 2005 X45 with the Cadillac LQ9. Does anyone have pictures of where to connect the heater valves to the engine? It is a closed cooling system. Any recommended valves or where to purchase?

    I want to get the boat out early this year

    Thanks for the help.

    2005 X45 LQ9
    Atlanta, GA

  • #2
    Anyone with an LQ9 and a heater?

    Thanks.

    David

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    • #3
      I have one. Let me do some investigating.

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      • #4
        Here is what it looks like. The larger hose goes to her heat exchanger and the two smaller ones go back to the heater core.
        Attached Files

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        • #5
          More for some reasons I can only do one at a time.
          Attached Files

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          • #6
            Number 3.
            Attached Files

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            • #7
              And the last one.
              Attached Files

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              • #8
                Brilliant . That is where I thought to connect the heater hoses, but I wanted to be sure. Do you know which is the inlet and which is the outlet for the waterpump? (My Maradyne heater recommends the flow to be in a particular direction).

                Thanks again for the help.

                David

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                • #9
                  After some investigation of the LQ9 and for information - the water pump fitting closest to the engine block (toward the bow of boat) is flow from the engine; the water pump fitting toward the stern is for the coolant return from the heater.

                  David

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