There are many wiring diagrams if Googled. There are hundreds of different Motorola Alternators. We really need to know which one it is. Some have external regulators, some do not! Two things that may help. Check the charging voltage at the battery (across the terminals) if the tractor is running at 1/2 throttle, there should be 14.2 to 14.8 volts. If no more than 12.6 volts, it is not working. If the voltage is there, the charging circuit is probably not running through the amp gauge. The heavy wire from the alternator needs to be hooked to the load side of the amp gauge (not the side hooked to the starter switch) A second idea is to use a Hitachi, or Delco 10SI alternator. The diagrams included show original schematics, and for a Delco or Hitachi. The Hitachi alternator is from a 1986 Nissan Pickup. Its advantage is small size. See archives for Hitachi diagrams and hookup. Jim
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Today's Featured Article - More Memories of a Field Service Engineer - by Brian Dye. Introduction: The author worked for one of the largest Ford tractor dealerships in England as a trouble-shooter on tractor engines, hydraulics and combine harvesters from 1963 to 1972. In 1972 he became a dealer manager and finally left the dealer net in 1975 to run his own electronic design and manufacturing company. [Editor] We live right in the middle of Norfolk. The dealership that I worked for sold Fordson Tractors from the 1920's and some of t
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