On Tue, 24 Jun 1997 19:27:22 EDT gofastmg@juno.com (Rick Morrison)
writes:
>
>On Tue, 24 Jun 1997 18:37:46 -0700 Bill Schooler <schooler@erols.com>
>writes:
>SNIP
>>Only one problem here. Don't believe you car will run without a
>>battery
>>in the electrical circuit. If there's an open in the battery-battery
>
>>connection, I suspect the engine would die as soon as you
>disconnected
>>
>>the battery being used to jump start the car. Now, if you had a
>>magneto,
>>that's a different story....
>>
>>BTW, please correct me if I'm wrong here (as if this list needs an
>>invitation like that!)
>>
>>--
>>*Bill Schooler *Check the MGCC Wash DC Centre Web Page
>>*Woodbridge, VA *http://members.aol.com/mgccwdcc/
>>*schooler@erols.com *Editor of The Spark
>>*69 B/GT, 53 TD *Web Page Coordinator
>
>HIGHLY UN-TECHNICAL RESPONSE FOLLOWS:
>
>Bill,
> Nope you don't need a Magneto. with a good alternator, the car will
>continue to run, as the main power lead from the alternator connects
>directly to the positive cable at the solenoid. Thus, while the
>alernator is "charging", the system is supplied with sufficient
>current to operate.
> Once the ignition is turned off, and the engines stops, no more
>current, no more power - she won't crank.
> Kiddies, don't try this at home!. Running the alternator with the
>battery out of the circuit can fry the alternator. It doesn't have a
>feed back of voltage from the battery, and being a dumb piece of inert
>matter, assumes the battery is dead and cranks up the output to max to
>"charge the battery, still no voltage from the battery, stays at max -
>Result? loss of electrical smoke from the alternator and the golden
>opportunity to go out an purchase a new alternator.
>
>Rick Morrison
>72 MGBGT
>74 Midget
>
Rick,
Here's another request for information and correction. It has been my
"knowledge" that a generator could energise itself, and so could run the
car without a battery in the circuit, but that an alternator required an
outside source of voltage to energise its fields, thus a battery with
some tiny amount of power was required. True/not true?
Bob Howard
MGBob @ juno.com
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