Home Forums 2-Cycle Racing Disoonnecting connecting rod from the piston (or vice versa)

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    • #39865
      Len Cockman
      Participant

      Hello all:  I have half of the crankcase separated  from our KT100 can engine.  I am trying to remove the crank and connecting rod from the crankcase.  Any help is appreciated.

      Thanks,
      Len

      "we've done so much with so little for so long that now we can do almost anything with almost nothing". Dave Marcis

    • #39964
      John Mulvihill
      Participant

      Hi Len,

      If the nut and ignition rotor have been removed it should just slide out of the bearing.

      It might require a couple taps on the end of the crank.  Use a hard plastic hammer or thread the nut back on half way and tap squarely on that.  You need to be careful not to damage the threads on the crank.

      John

       

       

       

       

    • #39999
      Walt Gifford
      Participant

      But the title says…

      FAA certified jet engine and aircraft technician,
      Nicholson Speedway class champion 2001,
      Yamaha KT100 Service Center,
      41 years karting experience

    • #40002
      tony zambos
      Participant

      Len,
      What are you trying to accomplish? If you just wanted to removed the piston from the rod, splitting the case wasn’t neccassary. Pull the clips that hold the wrist pin in and push out the pin. If you’re replacing the rod, the crank has to come apart. For help on line, GIF is going to be your best resource. If you need a shop to help you out, LAD Specialties is not that far of a drive.

      LAD Specialties customer / tony kart / rotax / kt100

    • #40334
      Len Cockman
      Participant

      Tony:

      What type of tool (a pick?) do you use to pull the clips that hold the wrist pin.  We are disassembling the engine to part it out.  My son has moved from karts to 600 Sprintcars.

      "we've done so much with so little for so long that now we can do almost anything with almost nothing". Dave Marcis

    • #40359
      tony zambos
      Participant

      Len,
      With a small needle nose pliers, grab the ring, twist and pull the clip out. To remove the pin without damaging the rod, you might need a puller similar to the one by LAD Specialities, http://www.ladspecialties.com/zoom/100-00034.html.

      LAD Specialties customer / tony kart / rotax / kt100

      • #41117
        Len Cockman
        Participant

        Thanks!  This has been a great help.

         

        Len

        "we've done so much with so little for so long that now we can do almost anything with almost nothing". Dave Marcis

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