If you have a cheap 0'scope you can find a popped diode if it is failed
to open--the waveform is pretty obvious and the deader the battery the
easier it is to see. If it is failed to short and there is anything
left in the battery, the diode will tend to signal by all the magic
smoke it lets go of. An awe inspiring amount of smoke even on a
presumably dead battery.



L.W.(ßill) ------ III proclaimed:

> The diode is popped instantly when the battery is disconnected
> while running, you need another rebuilt alternator.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> curbrider wrote:
>
>>91 jeep cherokee 4.0 replaced alternator and it over charge even with the
>>battery disconneted