[TR] [6pack] Alternator not charging battery - 1976 TR6

dctr6 at optonline.net dctr6 at optonline.net
Fri Oct 16 21:34:48 MDT 2020

   I had my original alternator rebuilt by a local shop (Orange Auto Electric in Newburgh, NY).  That alternator tested at 14+ volts (as opposed to the 13+ I was getting out of the 2 previously purchased rebuilds) and we are now getting 13+ at the battery even under load. Yes, it’s “supposed” to be 14.2 but it’s better than 12 and it appears to be sufficient to charge the battery. At this point I’m keeping my eye on the voltmeter (Funny aside here: Through all this, we never thought to look at the voltmeter) and will occasionally check the battery but I’m hoping that this episode is over.  I now know more about alternators than I ever thought I’d have to.  I’m assuming that the other 2 alternators may not have been rebuilt correctly.

    Thanks to Dick, Robert, Richard, Dave, John, David, Bob, Rob, Gene, Steve, Brian, Ron, Victor, Robert, Michael, Jim and anybody/everybody else that chipped in with suggestions.  I appreciate it.

Dennis Culligan, Highland, NY / 1976 TR6 CF57948U  


From: mohawktriumphs <mohawktriumphs at aol.com> 
Sent: Friday, October 16, 2020 5:44 PM
To: dctr6 at optonline.net
Cc: triumphs at autox.team.net; 6pack at autox.team.net
Subject: Re: [6pack] Alternator not charging battery - 1976 TR6


What ever fixed the no charge ?

Sent from my ASUS Pad

dctr6 at optonline.net <mailto:dctr6 at optonline.net>  wrote:

   Here’s a synopsis – Almost new battery went dead. Charged battery and took car to shop. Meter shows alternator is not charging battery (only 12 volts, not 14.6 as per Dan Master’s book). Buy rebuilt alternator and the same thing happens.  Swap alternator for a second rebuilt unit – same thing, battery is not being charged. Tried 3 different meters – all showed 12 volts.  Hard to believe I got 2 bad rebuilt alternators.  What’s wrong??

Dennis Culligan, 1976 TR6 

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