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Re: Electrical System Frustration
#11
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Thank you gentlemen,

I continue to learn here and appreciate all of your insight. I'll look into a 00 battery cable.

Andy

Posted on: 2017/8/12 12:32
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Re: Electrical System Frustration
#12
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I hope this question is not off topic. I have a 39 Six. The amp meter reads straight up when the car is running or not running. When its running and I turn on the headlights, the needle drops to full discharge. What causes this.
Thanks for any help.

Posted on: 2019/11/16 11:02
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Re: Electrical System Frustration
#13
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The amp meter gage generally stays in the middle of the gage when the car is off. When running the gage will move from center toward the minus according to whether more current is being used than the generator can replace. Or plus if the generator is making a bit of excess.

Posted on: 2019/11/16 13:01
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Re: Electrical System Frustration
#14
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Hi afsinc, normally I would say it's no problem joining in but I think you would have been better off in the Pre-War forum. because I believe that you have a three brush Generator and the charging is control by that third brush. I not sure so I won't go any further.
Wes

Posted on: 2019/11/16 16:22
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Re: Electrical System Frustration
#15
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Wes, I believe the last 3rd brush generator system used by Packard was 1936. 1937 onwards they used shunt-wound generators and full generator control, same as postwar.

Posted on: 2019/11/16 16:49
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Re: Electrical System Frustration
#16
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Hey Afsinc, Wes is right - this post should get moved or restarted in the prewar forum. I too have a '39 Six, and, although I can't comment on the generator style, I can say that it sounds like something is amiss, either with your amp gauge, charging system or wiring, as the gauge should center when off, should show significant '+' charging immediately after starting as the generator replaces the juice used to crank the engine, and the gauge should definitely not go to full discharge when you turn your lights on. If your idle is set to spec, just the headlights should be 'absorbed' by the gen,'s input and stay reasonably centered. If you say, had the heater on high, headlights on and then turned your driving lights on then you would/should show discharge at idle, but then if you revved the engine up a bit the needle should go into the plus side. If the gauge is going to full discharge when the lights are turned on, then you likely either have a wiring short or a bad generator/voltage regulator. Chris

Posted on: 2019/11/16 18:46
'If you think you can, or you think you can't - you're right!' Henry Ford.
1939 Packard Six, Model 1700
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Re: Electrical System Frustration
#17
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Thanks Owen, we're always learning.
Wes

Posted on: 2019/11/16 18:46
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