1935 McCormick-Deering WD-40 On The Prony Brake

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Later in the video you will see Noah Jones adjusting the injection pump to get the best performance based on the cetane rating of the diesel fuel being used. McCormick Deering allowed the operator to adjust the pump timing in the field to correct for variations in the fuel being used. Here is another video of this tractor at Republic participating in the tractor pull. kzbin.info/www/bejne/lYvdqn2OiKupj68