The generator is likely a Delco A circuit generator. The simple test is to start the tractor and use a jumper wire to ground the F terminal on the generator. this causes it to put out full power, which is OK for a modest time like a minute or so. The amp meter should show a nice charge rate. If it does, I would replace the regulator. Find a good USA made Delco regulator, not cheap import. If it does not charge, it could be the generator or the cutout relay in the VR. Use the link to get more serious. Jim VR The VR relay (of the two in the housing) is normally directly grounded through closed points. There may be 2 sets of contacts on that relay, but the one that stays closed when the engine is off (the upper one), is the active set. Thus when the VR is grounded to the tractor engine (it must be for it to work, check for a perfect ground to the regulator frame) the contacts ground the field circuit. When the voltage is higher than intended (by the settings of the gaps and spring tension) the contacts open and let the ground circuit flow through a resistor to lower the charge voltage. The process is random and pulsed DC control. Very electronically noisy. But the average current causes the average voltage to be correctish. If yours works when the field is jumped to ground, your regulator is not putting the connection through the points to ground (as it should). It is not likely the points, it is likely the regulator ground. Jim • Read up here http://www.navioneer.org/riprelay/The%20Navion%20Files/Delco_Remy_Generator_Regulators.pdf
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Today's Featured Article - The 8N and the Fox - by Zane Sherman. Dec. 13 1998, Renfroe, Alabama. Last niht I dreamed about the day that I plowed the field of about 10 acres over on what Jimmy and Dandy called the Ledbetter field. I was driving the 1948 8N Ford tractor that Jimmy bought in 48 new This was prebably in about 1951 and maybe even befor the house was built. This would have made me to be about16 years old and I drove the tractor for nothing and would have paid to drive it if I had had any money which I didn't, but neit
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