When there is a draw through the alternator, one of the diodes of the rectifier
is gone. You need to swap the alternator.
Betreff: Re: AW: [Healeys] Alternator Is â??Hummingâ??
Von: "R. Lindsay" <firstname.lastname@example.org>
An: "email@example.com" <firstname.lastname@example.org>
Itâ??s an alternator, negative ground.
Sent from my iPad
> On Jul 6, 2019, at 3:20 AM, "email@example.com"
> <firstname.lastname@example.org> wrote:
> Alternator or Generator?
> Betreff: [Healeys] Alternator Is â??Hummingâ??
> Datum: 2019-07-06T00:05:12+0200
> Von: "R. Lindsay" <email@example.com>
> An: "Healey List" <firstname.lastname@example.org>
> I have been trying to find the source of a parasitic draw of power from my
> battery for the past several weeks. FWIW, I have lost 0.75 volts on the
> charge over the last 4 days. This seems like a lot.
> When I remove the cable from the negative terminal of the battery (its a
> negative ground car) connect one end of my ammeter onto the negative terminal
> on the battery and the other end to the cable removed from the battery, the
> ammeter (set to read current of less than 10A) does not register a draw.
> However, when I use a 12 volt light and connect it to the same points`, the
> light goes on ever so slightly.
> Today I noticed a very faint humming from the alternator and it was a little
> warmer to the touch than the other parts of the engine. When I disconnect the
> alternator from the solenoid, the humming went away and when I tested it with
> the light the light did not light up - no draw. I canâ??t see anywhere else
> the draw could be coming from. Iâ??ve pulled all the fuses one by one to see
> if there is power being drawn from each circuit - with the alternator hooked
> up, there is no draw registered.
> This is the second new alternator Iâ??ve had on the car in the last 60 days.
> I had the issue before I exchanged the old alternator and the problem
> continued when I installed it. Could it be another bad alternator?? Are
> alternators exceptionally sensitive or just not made very well these days?
> Thank you for any light that can be shed on this.
> Price Lindsay
> 67 BJ8
> Sent from my iPad
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