Home Forum Ask A Member johnson fd-11 1957 18 hp

Viewing 2 posts - 1 through 2 (of 2 total)
  • Author
    Posts
  • #258139
    John Vaivoda
    Participant

      US Member

      Help please

      Help please
      Is this hole on the top of the lower unit supposed to be there to drain out water? I know the lower one on the side is, but am not sure about the upper one that is draining out oil mixed with water. Both holes are draining oil water mix. I am assuming the drive shaft seal under the impeller  needs to be replaced? I am replacing the prop seal also while it is apart.  Also was wondering if that which is draining  is just from the what ends up being dirty filthy oil water from running it in the test barrel, but I don’t think so. I only ran it a couple of minutes, and the water wasn’t That Dirty! See picture below.  Aslo, I can’t get the top cylinder to stop misfiring. The new points are flush, and it is timed with a timing tool. I replaced the spark plug wire also. Wondering if the coil is throwing intermitten spark? Thank you so much for anyone of you that can help. sincerely, John V

      #258165
      olcah
      Participant

        US Member

        The bottom plug is the oil drain.  The top plug is a vent.  You refill the gearcase from the bottom until it flows out the top.  (messy)

        If the oil comes out milky white, that means there is water in it and you probably should reseal the gearcase.

        • This reply was modified 3 years, 9 months ago by olcah.
      Viewing 2 posts - 1 through 2 (of 2 total)
      • You must be logged in to reply to this topic.