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  1. 986 tire calibration

    Tractors
    I have a 1979 IH 986. I accidentally turned the tire calibration screw on my digital display, cant find any info on how to set it back to the right adjustment
  2. IH 986 digital display

    Tractors
    Recently did a TA in my 986, digital tach display worked before hand now after reassembly it does nothing, had a couple wires mixed up, ignition wire, constant power and ground are hooked up correctly but display doesnt work and when ground is connected the hour meter begins to count even when...
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