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03-23-2013, 09:41 PM | #1 |
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3 wire Alternator hookup, 6 Volt Pos Ground
I have a wiring diagram from the web which shows a lot of detail but not the purpose of the wire from "left spade post #1". It is shown going to an indiactor light or resister. What is the purpose of the lamp and/or resister. Also what would be the value of the resister?
The "right spade post" is jumper-ed to the alternator power output threaded post. All this make sense except for above questions! email me details please [email protected] |
03-23-2013, 10:58 PM | #2 |
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Re: 3 wire Alternator hookup, 6 Volt Pos Ground
James, try www.alternatorparts.com or www.MadElectric.com I found some good info there some time ago. Bill W.
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03-23-2013, 11:12 PM | #3 |
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Re: 3 wire Alternator hookup, 6 Volt Pos Ground
It is used to energize or excite the field windings inside the alternator. The alternator cannot start charging until there is voltage on the field windings and a magnetic force is created. This terminal will cause the ignition warning light (idiot light) if installed, to illuminate if the ignition is turned on and the alternator is not supplying enough voltage.
This site should give you all your answers, if not ask here again. http://bob_skelly.home.comcast.net/~...ternator1.html
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What's right about America is that although we have a mess of problems, we have great capacity - intellect and resources - to do some thing about them. - Henry Ford II Last edited by Mike V. Florida; 03-23-2013 at 11:17 PM. |
03-24-2013, 01:56 AM | #4 |
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Re: 3 wire Alternator hookup, 6 Volt Pos Ground
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#1 is an output wire btw and is tied to the diode trio. Any load greater than an a couple of amps will quickly kill it, and the alternator will go off line. On modern late model cars with conventional ignition systems (50/60's cars) #1 tied to the key without a diode, light or resistor in line will power the cars coil. It will not turn off with the key. If you choose to use a wire at #1 you could use a small diode. You also could use the light as it is an indicator that the alternator is working. As it is an output post it turns the light out by suppling the same voltage on the filament as the supply side does. I'd just use a one wire alternator.
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Mike Stitt "A business that make nothing but money is a poor business." -Henry Ford Last edited by Willie Krash; 03-24-2013 at 02:03 AM. |
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