Re: Charge rate for "49 Custom 8

Posted by Owen_Dyneto On 2020/10/15 10:58:49

Generators typically have little or no output at idle. You might check your idle speed, perhaps its abnormally low?

But, with a battery in "fair" condition by hydrometer, I'd expect a much higher charge rate at highway speed in daylight, 15 amps at least. So I suspect you have an issue with either the regulator or generator or both.

If you momentarily ground the generator field terminal and increase engine RPM and a very high charge rate (as high as 30 amps) results, you've narrowed the problem to the regulator. Remove the test jumper to ground immediately after you've completed the test.