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Old Dec 30, 2003 | 10:19 AM
  #1  
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80 Still wont charge

Some of you might remember that I posted in a couple of battery related threads made by other user's, stating that I had charging/battery problems.

Well,
my 1980 f150 still isnt charging. the alternator is good, the voltage reg is brand new, 5 th battery, and i dont know what to do. Can a starter solenoid cause it not to charge?
 
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Old Dec 30, 2003 | 12:24 PM
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Make sure your wiring looks like this.



Go get a voltmeter and measure the voltage on the battery with the truck off, and then with it running, and report back.
 
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Old Dec 30, 2003 | 06:51 PM
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with the battery sitting and the truck off, im getting about 12.85 volts, when i start the truck and measure the battery i can sit and watch the battery drain .01 volts every few seconds
 
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Old Dec 30, 2003 | 08:12 PM
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Can the solenoid prevent it from charging.

The multi-purpose starter solenoid provides an attachment for a few power related needs.

The power being generated by the Alternator/ Voltage regulator
heads for the BIG thread stud on the solenoid.

It is basically a meeting place for all that needs power.

It shouldn't be causing any trouble when it comes to charging.

When are you making this measurements?

Have you done a complete testing series of the charging system?

To check for sure of the charging system,the engine has to rev at least as high as 800 RPM.This allows for the voltage regulator to "kick in" and provide more current to the system.

Testing at idle doesn't help.
 
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Old Dec 30, 2003 | 08:26 PM
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Do you have battery voltage at the alternator output terminal? it should be hot at all times, if not, check the fusible links near the starter relay
 
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Old Jan 2, 2004 | 06:38 PM
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we have it fixed, on the voltage reg, there are 4 tabs, my wiring harness aonly used four, and i had the choke wire coming off the alternator just dangling, for no real reason i we put the choke wire on the top tab(the one not being used, put the harness on and BAM, it was charging like a champ, no problems since
 
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