[Healeys] Alternator Is “Hummingybe

[R. Lindsay]

Thanks Michael.  I’ll give it a try.

Price Lindsay

Sent from my iPad

> On Jul 5, 2019, at 9:37 PM, Michael Salter <michaelsalter at gmail.com> wrote:
> 
> One little trick for tracing parasitic losses it to attach the ammeter to both sides of a connection BEFORE breaking the connection. 
> In this way a draw that "switches off" when the connection is broken will be seen. 
> This happens with self energizing relays in particular. 
> Not sure if such a test would help in this instance but may be worth a try.
> M
> 
>> On Fri, Jul 5, 2019, 9:11 PM jim via Healeys, <healeys at autox.team.net> wrote:
>> Maybe a picture  will help ...The only path for current to flow is through the 'Rotor' winding via the regulator...
>> 
>> Jim
>> 
>> On Friday, July 5, 2019, 10:04:29 PM UTC, R. Lindsay <050.rpl at gmail.com> wrote:
>> 
>> 
>> 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 can’t see anywhere else the draw could be coming from.  I’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 I’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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