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Quick Oil Drain hose/plug not draining oil.

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  • Quick Oil Drain hose/plug not draining oil.

    I am a new boat owner. I have a Bayliner 2002 1954 with a MerCruiser Alpha 1 3.0 IL4. This motor is equipped with the quick drain hose that you pull through the bilge drain to drain the oil. Problem is, when I open the drain plug on the hose, nothing comes out. My dipstick shows a full crankcase. I pulled off the oil cap, pulled the dipstick out, and loosened up the oil filter to allow positive air return, but still no oil drains out. The hose is not kinked and is pulled straight out the bilge drain. Is there something I am missing? I don't want to revert to pumping the oil out the dipstick as the pump needed costs $50!

    Thanks,
    Brian


  • #2
    Re: Quick Oil Drain hose/plug not draining oil.

    Take a wire coat hanger and run it thru the hose to clean out the gunk. Thats the only problem Ihave seen with the hose is that is where the gunk accumulates. Or if you have an electricians snake you can use it too.
    1994 Crownline 182BR w/4.3LX 4bbl Alpha 1 gen 2
    2007 Dodge Ram 1500 SLT w/5.7 HEMI
    2004 Chevy Tahoe w/5.3
    1970 Chevelle SS 396-OK its the 18 year old daughters car but hell its fun to drive!!

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    • #3
      Re: Quick Oil Drain hose/plug not draining oil.

      After making sure the drain valve is open, a little compressed air through the hose.
      From Mercruiser:
      Anyone who uses a service procedure and/or tool, which is not recommended by the manufacturer, first must completely satisfy himself that neither his nor the product’s safety will be endangered by the service procedure selected.

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      • #4
        Re: Quick Oil Drain hose/plug not draining oil.

        Try running the engine first to warm up the oil before draining it.

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        • #5
          Re: Quick Oil Drain hose/plug not draining oil.

          As stated above, gunk usually will clog it up.Try the wire coat hanger trick.If that won't do it compressed air should.
          sigpic

          1981 ChrisCraft 210 Scorpion K,175 Johnson SeaHorse

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          • #6
            Re: Quick Oil Drain hose/plug not draining oil.

            Thanks guys. I'll give these tips a try. I hope thats all this is.

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            • #7
              Re: Quick Oil Drain hose/plug not draining oil.

              I would keep the compressed air to a minimum psi so you don't blow out any seals. 4-5psi should suffice.
              1976 Mark Twain 200VBR w/Mercruiser 233 (Ford 351w) "Heart & Soul"

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              • #8
                Re: Quick Oil Drain hose/plug not draining oil.

                If there was some solid material in that hose wouldn’t the compressed air just blow them in the engine?

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                • #9
                  Re: Quick Oil Drain hose/plug not draining oil.

                  These hoses drain VERY SLOWLY...you have to have patience.

                  I run the engine first, to warm up the oil. Then, I place a container under the hose. Then...I go back the next day, and my crankcase is always drained!

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                  • #10
                    Re: Quick Oil Drain hose/plug not draining oil.

                    Originally posted by Rocky_Road View Post
                    These hoses drain VERY SLOWLY...you have to have patience.

                    I run the engine first, to warm up the oil. Then, I place a container under the hose. Then...I go back the next day, and my crankcase is always drained!
                    True on the slow drain.I had a Merc 496HO the other day that took at least 2 hours to drain the 9 quarts.
                    sigpic

                    1981 ChrisCraft 210 Scorpion K,175 Johnson SeaHorse

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