Question about Volkswagen Beetle

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1970 VW Beetle voltage regulator

I put a new generator and voltage regulator on my VW but it keeps running my battery down then the car won't start. Do you suppose I messed up the regulator while installing? I polorized it according to the instructions. My generator light stays on all the time when running. I believe I have it wired right according to the manual. Where should I start looking?
Thanks,
Sam

Posted by on

  • scruzan Jul 01, 2008

    I just checked the battery and several cells were bad. I'll replace the battery and hopefully the generator and voltage regulator are working properly.

    Thanks,

    Sam

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  • 375 Answers

Loud your battery again and see if ti keep running it down--if yes check the battery loading size it suppose to be around 12-13.
less then 9-10 in most cases it's the alternator cause another thing is your battery could be out of work

Posted on Jul 01, 2008

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Alternator or Voltage regulator


if you can carefully put a metal wrench on the rotating pulley of the alternator and felt a magnetism attracting the metal wrench, then your alternator is charging. if there is no magnetism, then the alternator is not charging...

another test is to measure the voltage on the small wires that went in to the alternator that says "F" for field, it should measure battery voltage...that is the voltage from the regulator..that means your regulator is working...but the altrntor is not..

without that battery voltage, then the regulator is he culprit...



pls be carefull...

hope i was able to solve ur problem..

pls rate me.. tnx, drcool..

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