#distributor_cam__distributorcam  the cam inside the distributor that rotates to contact spark plug terminals in the correct order
  supertype:  cam  a rotating disk shaped to convert circular into linear motion
  part of:  electrical_distributor__distributor__distributer  electrical device that distributes voltage to the spark plugs of a gasoline engine in the order of the firing sequence
     part of:  ignition_system__ignition  the mechanism that ignites the fuel in an internal-combustion engine
        part of:  electrical_system__electrical_part  equipment in a motor vehicle that provides electricity to start the engine and ignite the fuel and operate the lights and windshield wiper and heater and air conditioner and radio
           part of:  motor_vehicle__motorvehicle__automotive_vehicle  a self-propelled wheeled vehicle that does not run on rails

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