09-12-2013, 09:23 PM
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CC Member
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Join Date: Mar 2004
Location: Sunnyvale,
CA
Cobra Make, Engine: Factory Five Racing MKIII Roadster 347
Posts: 1,053
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Not Ranked
Battery or Alternator/voltage regulator?
I took my FFR to work and to my nephews 'car show' at EA today.
On the way home from work, I noticed my volt meter was under 12V. Normally on any given time, it's between 12 and 14 so call it 13V.
No matter how high I revved, it remained below 12V. I made it home but now to figure out if it's the alternator/regulator or battery.
The alternator is a 100A Power Master single wire so the voltage reg. is built inside.
The batter is a red Otima I've had since early 2006 so it's over 7 years old now.
What's a good way to check the alternator and should I just replace the Optima due to it's age or keep it longer???
TIA
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