63 scout 80 152ci timing proceedure

Discussion in 'General IH Tech' started by Klblackb, Nov 6, 2018.


  1. Klblackb

    Klblackb Farmall Cub

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    I am trying to set timing on my scout. My question is do you set the timing with the vacuum advance connected or disconnected? I’m getting about 15 degree difference between the two. I set it a 5 btdc with disconnected and when I looked at it after hooking back up it was at about 20 btdc. Seems excessive to me? These were done at idle speed. I’m sure someone out there can answer this question. Any help appreciated. Thanks. Keith
     
  2. jeff campbell

    jeff campbell Lives in an IH Dealership

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    Yes.unhooked and vacuum line plugged !
     
  3. 1975IH200

    1975IH200 High Wheeler

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    What exactly is your idle speed?
     
  4. Klblackb

    Klblackb Farmall Cub

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    Not sure exactly, but would guess maybe 600 rpm.? What should it be? Thanks
     
  5. 1975IH200

    1975IH200 High Wheeler

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    600 rpm is good, but if you don't know what rpm the engine is running, then you don't know if the centrifugal advance is engaged or not.
    Guessing isn't knowing.
     

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