Posted by Steve@Advance on August 02, 2016 at 20:41:12 from (107.203.134.67):
In Reply to: Amp light question posted by Bkpigs on August 02, 2016 at 19:34:35:
When you connected the arm and battery wire, did you remove them from the regulator? As long as they are spliced together securely, and disconnected from the old regulator, that will work. At the same time, all the other wires connected to the regulator, or that were connected to the generator, need to be disconnected and insulated, or traced to their origin and removed.
The 12.3 volt reading is too low. Some of the old one wire alternators required a high RPM to initiate charging. With the engine running at full governed RPM, check the voltage across the battery. It should be up around 14.5 volts.
Next check the voltage at the post on the back of the alternator. It should be close to the same as the battery voltage, just slightly higher. If the voltage at the alternator is higher, up around 15v, and the battery voltage is low, 12v or so, there is a bad connection between the alternator and the battery.
If both readings are low, there is a problem with the alternator, or the belt is slipping. Be sure the belt and pulley are compatible, properly aligned, and the belt is tight. If the alternator proves to be faulty, it can probably be repaired at an alternator/starter shop cheaper than replacing it.
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