Re: Farmall B alternator and ammeter

Posted by Janicholson on August 01, 2007 at 20:48:08 from (71.87.39.51):

In Reply to: Farmall B alternator and ammeter posted by Dave H (MI) on August 01, 2007 at 20:16:05:

No need for a special plug, two regular 1/4" spade connectors that crimp on will be fine, and fit the prongs on the alternator. The wire that is cut off is the one that needs the diode only. The band on the diode is to be closer to the alternator. This diode can be covered with shrink tubing and that will keep it nice. The other end of the diode goes to the ignition switch (as in the diagram below). These alternators sometimes need to be spun to better than 1/2 throttle to get them to start charging. So do not assume it is broken until you rev it up. The resistor can be used in place of the diode, but don't use both. The resistor shown below is for a 12v coil requiring a bellast resistor. Look at the side of the coil to read what may be writ thereon. If it says 12v no external resistor requires, do not put a resistor in that circuit. I hope this helps, JimN

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