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Confirm an alternator conclusion?

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billd View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote billd Quote  Post ReplyReply Direct Link To This Post Posted: Jan/06/2010 at 12:50pm
Sometimes "close enough" counts, eh? LOL
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Post Options Post Options   Thanks (0) Thanks(0)   Quote kensamc Quote  Post ReplyReply Direct Link To This Post Posted: Jan/06/2010 at 1:02pm
Amby wagon with a 343 ..... that's on my "someday" list........

For now, happy with my preChrysler Jeep, my Eagles and my first big project, the 58 Cross Country.

Every confidence in AMC and that all these cars will be the only one of their kind
in my neighborhood or local cruise.....


1986 Jeep Corp Grand Wagoneer

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billd View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote billd Quote  Post ReplyReply Direct Link To This Post Posted: Jan/06/2010 at 1:05pm
You have a pretty nice collection listed in your sig area - nothing at all to be ashamed of, and I'd be happy to have a couple of 'em myself!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote gwryder Quote  Post ReplyReply Direct Link To This Post Posted: Jan/06/2010 at 1:18pm
Billd,
True, a voltage regulator only senses voltage, but voltage is a function of Ohms law. The real brains in the system is the battery. The regulator only responds to voltage, while the alternator is a current device. All the resistances in the charging system will affect battery charging and voltage, that's why having all connections clean is important. Also, the engine should run ~ 2000 rpm for the alternator to put out enough current. Lower speeds will affect output. It's very likely that idling with accessories on will drain the battery.
To do this correctly, the specific gravity of the battery electrolite must be know. That's the only way one can tell the state of charge of the battery. If a battery is sulfated, the effective resistance is high, but the specific gravity is low, so the state of charge of the battery is low, even though the battery could  read ~14 volts, indicating a charged battery. With the battery voltage high, the regulator thinks the battery is charged, but the specific gravity will say it's not. I'm sure you've seen this in your days.
 
gwryder
John
70 AMX



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Post Options Post Options   Thanks (0) Thanks(0)   Quote ramblinfsj Quote  Post ReplyReply Direct Link To This Post Posted: Jan/06/2010 at 1:28pm
Originally posted by billd billd wrote:

You have a pretty nice collection listed in your sig area - nothing at all to be ashamed of, and I'd be happy to have a couple of 'em myself!
 
I totally agree. I have a hand full of AMC's myself and the one I will always have in my driveway is a Grand Wagoneer. They are the best in any situation............... except for fuel milage.
1982 Jeep J-20
1965 Rambler American 220
1978 Jeep Cherokee w/401
1983 Jeep J-10
1979 Concord DL 2dr
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Post Options Post Options   Thanks (0) Thanks(0)   Quote kensamc Quote  Post ReplyReply Direct Link To This Post Posted: Jan/06/2010 at 3:00pm
Bill

BTW, I need to update my signature .... succumbed to the economy and sold the Ambassador to Forest.
Also looking to sell one of the Eagles, but I'm guessing you like 'em a bit older .....
1986 Jeep Corp Grand Wagoneer

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Post Options Post Options   Thanks (0) Thanks(0)   Quote poormansMACHINE Quote  Post ReplyReply Direct Link To This Post Posted: Jan/06/2010 at 4:45pm
Originally posted by billd billd wrote:

Sometimes "close enough" counts, eh? LOL

In horse shoes and molotov coctails.
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