Smoke from exhaust - with video

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  • Graham
    Senior Member
    • Mar 2016
    • 86
    #16
    Originally posted by JOHN COOKSON View Post
    OP of 135 sounds about double to me. Not sure of the significance, if any.
    Graham: What oil and what viscosity are you using?

    ex TRUE GRIT

    Sorry that was I typo. It's corrected now.

    Oil pressure is 35 & I use Motul 4T 3000 10W40 (M42) Motorcycle oil

    Comment

    • roadnsky
      Afourian MVP
      • Dec 2008
      • 3127
      #17
      A little late to the party...
      HERE is a thread that discusses both the Acid Flush and the Pressure Flush (with Pics too)
      -Jerry

      'Lone Ranger'
      sigpic
      1978 RANGER 30

      Comment

      • Graham
        Senior Member
        • Mar 2016
        • 86
        #18
        Originally posted by roadnsky View Post
        A little late to the party...
        HERE is a thread that discusses both the Acid Flush and the Pressure Flush (with Pics too)
        Thanks! I had the bookmarked Great thread!

        Comment

        • Graham
          Senior Member
          • Mar 2016
          • 86
          #19
          Today's progress:

          I did the acid flush.

          I pressure tested the RWC system at 20psi for 30 min and droped to 16psi. Is that that is a concern? Maybe I'll do this test and see what happens over an hour.

          Then I pilled off the impeller, and it was shredded:

          https://photos.app.goo.gl/4TA5NsVCWKzMML1K8


          I had replaced it with a new on at the beginning of this season with one that I found on my boat that was new in the package. It could have been 15 years old but looked like new and was sealed, so I figured it would be good to go. I guess not! So I put the old one back in as there was really nothing wrong with it and will order up a new one.

          I found all but one of the fins. Hopefully, that one found it's way out the exhaust.

          She's cooling like a champ now

          Thanks for the help everyone!!!
          Last edited by Graham; 08-19-2020, 03:47 PM.

          Comment

          • goodoldboat
            Senior Member
            • May 2017
            • 130
            #20
            So its steam !!!

            I have been having this issue this season ...
            Graham your Video is an exact representation of my issue ..

            I thought I was burning oil, but apparently its steam . I also like your "tailpipe extension ". I may add one myself . Time for an acid flush for me .

            I will even open the side plate this winter and clean that out , it has not been done in the 5 years I have owned the boat and I have done one acid flush in that same time period .
            S/V Gosling
            Westport CT .

            “Believe me, my young friend, there is nothing - absolutely nothing - half so much worth doing- as simply messing about in boats.”
            ― Kenneth Grahame

            Comment

            • Peter
              Afourian MVP
              • Jul 2016
              • 298
              #21
              Good Old Boat

              The water flow out of Graham's exhaust looked weak to me - good hint there was a flow problem.

              Check your water pump impeller

              poor flow = elevated temps = steam

              Peter

              Comment

              • Graham
                Senior Member
                • Mar 2016
                • 86
                #22
                [QUOTE=goodoldboat;122563]I have been having this issue this season ...
                Graham your Video is an exact representation of my issue ..

                Thanks, that short extension keeps my transom looking spiffy

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