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Oil Leak -- HELP-gctid404193

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    Oil Leak -- HELP-gctid404193

    [img]/media/kunena/attachments/vb/707927=30087-oilleak.JPG[/img]So long story short, I blew the headgasket on my 5.7L Merc - bought a new longblock and had the cert mechanic install the new longblock - he has since sold his business for retirement and oved way up north - i take the boat out to begin the break in process - i remove boat from water and while on the trailer i pull the "drain" plug at the rear of the boat only to find oil and water flowing out...oil? new engine? yup - i stuck my phone under the block to see where the leak was, and to my surprise i see this.....ideas? suggestions? fix?Thank you.

    #2
    here's another angle.

    argh

    Comment


      #3
      Is this bolt in place?

      The red line indicates the location of a mechanical fuel pump push rod bore..... whether mech or electric fuel pump is being used.

      The upper hole is open to this bore on many of the SBC's.

      Attached files [img]/media/kunena/attachments/vb/707944=30090-SBC block view fuel pump rod.png[/img] [img]/media/kunena/attachments/vb/707944=30091-SBC front bolt bore oil leak.jpg[/img]
      Rick E. Gresham, Oregon
      2850 Bounty Sedan Flybridge model
      Twin 280 HP 5.7's w/ Closed Cooling
      Volvo Penta DuoProp Drives
      Kohler 4 CZ Gen Set

      Comment


        #4
        2850 Bounty - I believe it is (will check tonight when home)

        It seems to me that there might have been a leak and the "mechanic" tried/did cover it up with silicone.

        Im wondering if that bell housing or timing cover is dented/punctured?

        I dont know what that piece is called where all the silicone is covering, but it seems the oil has found a way through the silicone?

        Comment


          #5
          fox2050ss wrote:
          2850 Bounty - I believe it is (will check tonight when home)

          It seems to me that there might have been a leak and the "mechanic" tried/did cover it up with silicone.

          Im wondering if that bell housing or timing cover is dented/punctured?

          I dont know what that piece is called where all the silicone is covering, but it seems the oil has found a way through the silicone?
          I wondered about that when I looked at the image. I should have looked more closely, as I didn't realize that was silicone gooped on there.

          If that is silicone, it has no place being there... period!

          Any mechanic worth his salt, would have NEVER applied silicone to cover up a leak.

          Yes, that is the bottom of the timing chain cover where it joins the front of the oil pan area.

          There are a series of gaskets, one rubber or silicone seal, and a lip seal installed in the cover for the harmonic balancer seal surface.

          .
          Rick E. Gresham, Oregon
          2850 Bounty Sedan Flybridge model
          Twin 280 HP 5.7's w/ Closed Cooling
          Volvo Penta DuoProp Drives
          Kohler 4 CZ Gen Set

          Comment


            #6
            Argh - is it like a "pull the motor out" kind of fix? .....again? lol

            Comment


              #7
              fox2050ss wrote:
              Argh - is it like a "pull the motor out" kind of fix? .....again?
              Unfortunately, and to do it correctly, yes!

              .
              Rick E. Gresham, Oregon
              2850 Bounty Sedan Flybridge model
              Twin 280 HP 5.7's w/ Closed Cooling
              Volvo Penta DuoProp Drives
              Kohler 4 CZ Gen Set

              Comment

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