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Author
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Topic: Charging question
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gmliebau
Gearhead Posts: 691
From: Port St. Lucie, FL
Registered: Jan 2004
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posted 08-14-2005 08:25 PM
 
Just a quick question. I'm getting just under 12 volts on my gauge. Am I getting ready to have charging problems?
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mustangboy
Gearhead Posts: 1343
From: Ont, Canada
Registered: Mar 2002
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posted 08-14-2005 10:06 PM
If your gauge is accurate your already having problems.You should be 13-14.5 volt range.------------------
1968 mustang j-code sprint.13.69@101 306cu.in, stock ported heads,weiand exellerator,650 holley DP,hedman hedders,comp 292 Magnum cam,4-speed,8 inch 4.11 detroit locker...................................................................1966 mustang coupe project.289 4 speed,3.20 rear http://mustangsandmore.50megs.com/MembersPics/mustangboy.html
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N266fords
Gearhead Posts: 1662
From: Sierra Vista ,Az USA
Registered: Apr 2003
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posted 08-14-2005 11:04 PM
If the car is running you should have 13-15 volts if its off you should read about 12.68 volts.
Are the lights dim at idle and if they are does it get bright with rpm's.
Have you checked the water level in your battery and is the connection good.
Bruce
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Toronado3800
Gearhead Posts: 1163
From: St. Louis, MO
Registered: Jul 2001
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posted 08-15-2005 03:48 AM
I've put my electronic ignition and electric fan on their own circuits to avoid the 40 year old wiring in my car. Darn alternator is still in the old wires though.
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gmliebau
Gearhead Posts: 691
From: Port St. Lucie, FL
Registered: Jan 2004
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posted 08-15-2005 08:00 AM
I'm thinking it might be the battery, because the lights are not fluctuating with the rpm of the motor. I dunno. I'll throw a meter on it today.
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Mike W
Gearhead Posts: 135
From: CA
Registered: Jul 2003
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posted 08-16-2005 04:38 AM
You are not getting any output from the alternator. Check for voltage on the Field terminal of the alternator. If you have around 11 volts, replace the alternator. If there is no voltage, check the voltage regulator or it's wiring.
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gmliebau
Gearhead Posts: 691
From: Port St. Lucie, FL
Registered: Jan 2004
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posted 08-16-2005 04:59 PM
This was another of those think before you speak situations. Turns out the aftermarket gauge wasn't grounded properly to the frame of the dash. The battery read 14 volts and the alternator read 13.5. Duh
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