Home Forum Ask A Member ’57 Johnson 7.5 hp dropping a cylinder, but got it back???

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  • #34849
    RICHARD A. WHITE
    Participant

      Lifetime Member

      Well, started on 2 cylinders, then dropped the top one again, picked it back up and dropped it 2 more times in 20 minutes of running… time to go thru the entire ignition and fuel system …LOL

      gotta love this stuff 🙂

      http://www.richardsoutboardtools.com
      classicomctools@gmail.com

      #34852
      fleetwin
      Participant

        US Member

        Oh well, better that it crapped out on you then after you gave it back….Let us know what you find! D

        #34856
        RICHARD A. WHITE
        Participant

          Lifetime Member

          Oh it was still running on one cylinder,,had much better luck with my second motor…

          http://www.richardsoutboardtools.com
          classicomctools@gmail.com

          #35154
          RICHARD A. WHITE
          Participant

            Lifetime Member

            And the winner is !!!!!

            None of us 🙁

            It seems when the previous "mechanic" replaced the original coils, the upper cylinder coil wire was not inserted far enough into the coil, causing it to fire intermittently, it actually burned, or for a better description, left the little plastic grommet charred and partly missing AND charring the inside of the plug wire socket in the coil. This appeared to leave some rust on the wire in that socket. So as precaution I replaced that coil and BOTH plug wires, as they seemed old and brittle.

            Pretty confident this will resolve that cylinder dropping issue. So the $20 question is, would that coil still be usable???

            Have a great day guys and thanks for helping.

            Regards

            Richard

            http://www.richardsoutboardtools.com
            classicomctools@gmail.com

            #35157
            al-lockhart
            Participant

              Canada Member

              I bet is that it was the wires all along, I can’t believe how many motors I get that had been "tuned" up but still have the original wires on them. I would certainly try the coil again before chucking it out.
              Al

              #35164
              chris-p
              Participant

                I have no idea why anyone would go to the trouble of changing the coils, but are too lazy to take the mag plate off and insert the plug wire properly, twisting it into the coil. And as Al says, change the darn wire. I mean, we are not talking big money here.

                #35166
                david-bartlett
                Participant
                  quote Chris_P:

                  I have no idea why anyone would go to the trouble of changing the coils, but are too lazy to take the mag plate off and insert the plug wire properly, twisting it into the coil. And as Al says, change the darn wire. I mean, we are not talking big money here.

                  Chris,

                  Some people are cheap! I got a JW from a neighbor of my dad for $10 at his yard sale. Coils were OK, but would only run on one cylinder. I found out when I took it apart that the plug wires were cut too short and one got pulled out of the coil when the throttle was advanced. This guy was a notorious cheapskate and all I could figure was he didn’t want to spend the money on the extra 6 inches of wire. 😎

                  #35175
                  1946zephyr
                  Participant
                    quote Richard A. White:

                    And the winner is !!!!!

                    None of us 🙁

                    It seems when the previous "mechanic" replaced the original coils, the upper cylinder coil wire was not inserted far enough into the coil, causing it to fire intermittently, it actually burned, or for a better description, left the little plastic grommet charred and partly missing AND charring the inside of the plug wire socket in the coil. This appeared to leave some rust on the wire in that socket. So as precaution I replaced that coil and BOTH plug wires, as they seemed old and brittle.

                    Pretty confident this will resolve that cylinder dropping issue. So the $20 question is, would that coil still be usable???

                    Have a great day guys and thanks for helping.

                    Regards

                    Richard

                    I bet you didn’t read my post sir. 😀

                    #35176
                    RICHARD A. WHITE
                    Participant

                      Lifetime Member
                      quote 1946Zephyr:

                      quote Richard A. White:

                      And the winner is !!!!!

                      None of us 🙁

                      It seems when the previous "mechanic" replaced the original coils, the upper cylinder coil wire was not inserted far enough into the coil, causing it to fire intermittently, it actually burned, or for a better description, left the little plastic grommet charred and partly missing AND charring the inside of the plug wire socket in the coil. This appeared to leave some rust on the wire in that socket. So as precaution I replaced that coil and BOTH plug wires, as they seemed old and brittle.

                      Pretty confident this will resolve that cylinder dropping issue. So the $20 question is, would that coil still be usable???

                      Have a great day guys and thanks for helping.

                      Regards

                      Richard

                      I bet you didn’t read my post sir. 😀

                      I did, just mis read it..sorry bud, did not mean to offend…LOL

                      http://www.richardsoutboardtools.com
                      classicomctools@gmail.com

                      #35177
                      1946zephyr
                      Participant

                        No offense. LOL. I just need to increase my font size. 😀 😀

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