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Mercruiser 3.0L Alpha 1 water discharge

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  • Mercruiser 3.0L Alpha 1 water discharge

    Confused on where the water should be discharging from what I believe is called the "gimbal housing" ... running the motor with the rabbit ears on with a good flow the water predominately exits the starboard egress ... is that correct? The service tech over the phone says yes that is correct as you have a 4 cyl engine but I have no confidence ... my neighbor (small engine repair guy and a diy'er) says no it should be discharging equally (however, he has a 4.3 A1). I have an '06 with about 36 hours on it.


  • #2
    Re: Mercruiser 3.0L Alpha 1 water discharge

    My '05 3.0L has always done the same as yours...most of the water exits the starboard side. All of the research that I have done says that this is normal.

    Happy boating!

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    • #3
      Re: Mercruiser 3.0L Alpha 1 water discharge

      They are called Idle Reliefs and yes, normally one will flow more water than the other...depends on which way boat leans.

      .., and tell your neighbor to stick to repairing lawn mowers
      The last time religion controlled the world it was known as the Dark Ages

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      • #4
        Re: Mercruiser 3.0L Alpha 1 water discharge

        Just relax and enjoy your boat. If it's not overheating or otherwise doing something else wrong, don't worry about it. My 5.7 Alpha 1 throws water everywhere. I couldn't even tell you where it's coming from! LOL!
        -Mike
        -------------------------------------------------
        Miss Kris
        1994 Maxum 2400 SCR 5.7 Alpha 1
        sigpic

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        • #5
          Re: Mercruiser 3.0L Alpha 1 water discharge

          Both holes connect just inside the transom, the water exits which ever side is "easier". Absolutely no reason for concern.

          Those ports are only there to help the engine idle when it is in the water - exhaust can bubble out close to the surface, rather than being forced down to the prop.

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          • #6
            Re: Mercruiser 3.0L Alpha 1 water discharge

            Thanks folks - I really appreciate it ... awesome site this

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            • #7
              Re: Mercruiser 3.0L Alpha 1 water discharge

              You should click around the adults only section. Lotd of great info, including free factory manuals in pdf format.

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              • #8
                Re: Mercruiser 3.0L Alpha 1 water discharge

                Originally posted by 180shabah View Post
                You should click around the adults only section. Lotd of great info, including free factory manuals in pdf format.
                Just joined the site, great info. Can't find the "adults only" sticky anywhere. Am I blind?

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                • #9
                  Re: Mercruiser 3.0L Alpha 1 water discharge

                  Originally posted by hookedagain View Post
                  Just joined the site, great info. Can't find the "adults only" sticky anywhere. Am I blind?
                  Perhaps
                  It's the first thread in the top of this forum.
                  The last time religion controlled the world it was known as the Dark Ages

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                  • #10
                    Re: Mercruiser 3.0L Alpha 1 water discharge

                    ^^^what he said^^^

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