The Ford Barn

russcc · 09-18-2014, 05:21 AM

The 12V 8RT charging system is not working. Had the generator bench tested at the auto electric shop, putting out 35 amps. Polarized the generator and regulator. Grounded the generator G to the regulator.
Went through the following steps;
1. With the engine at high idle, pulled the positive battery cable, engine quits.
2. Grounded the field F on the generator to go on full charge, pulled the positive battery cable, engine quits.
3. Grounded the field F on the regulator to go on full charge, pulled the positive battery cable, engine quits.
4. No change in the ammeter under full charge, stays right in the center and does not move.
5. Have 13 volts on both sides of the ammeter.
6. By passed the ammeter, grounded the field F on the regulator to go on full charge, pulled the positive battery cable, engine quits.
7. Have 12 volts at the BAT terminal on the regulator.
8. have continuity on ground wire from generator G to regulator ground.
Suggestions please. Thank you.

09-18-2014, 05:21 AM	#1
russcc Senior Member Join Date: May 2010 Posts: 2,871	8RT charging system trouble shoot The 12V 8RT charging system is not working. Had the generator bench tested at the auto electric shop, putting out 35 amps. Polarized the generator and regulator. Grounded the generator G to the regulator. Went through the following steps; 1. With the engine at high idle, pulled the positive battery cable, engine quits. 2. Grounded the field F on the generator to go on full charge, pulled the positive battery cable, engine quits. 3. Grounded the field F on the regulator to go on full charge, pulled the positive battery cable, engine quits. 4. No change in the ammeter under full charge, stays right in the center and does not move. 5. Have 13 volts on both sides of the ammeter. 6. By passed the ammeter, grounded the field F on the regulator to go on full charge, pulled the positive battery cable, engine quits. 7. Have 12 volts at the BAT terminal on the regulator. 8. have continuity on ground wire from generator G to regulator ground. Suggestions please. Thank you.