[TR] Alternator not charging battery - 1976 TR6

[Greg Lemon]

I will third checking the wires, I had a known good alternator and tried a
couple different voltage regulators (early Lucas with external regulator)
before I figured out the plug was broken, and one of the wires just pushed
out instead of pushing on.

Greg Lemon
TR250


On Wed, Sep 30, 2020, 7:02 PM Brian Kemp <bk13 at earthlink.net> wrote:

> I second checking the wires.  Had a problem on a weekend road trip where
> one of the smaller wires in the plug that goes into the alternator broke.
> Not fun trying to pry out the connector from the plug and uncrimp it with
> minimal tools.  With the car at home, give each wire a tug to make sure
> they are all secure.
>
> As to rebuilds, I don't have faith is most rebuilders.  My rebuilt TR6
> starter lasted a full week before failing.  I think they are just out for a
> quick turn.
>
> Brian
>
> On 9/30/2020 2:31 PM, DAVID MASSEY wrote:
>
> On the 76 TR6 (well all the CF series cars) the alternator output (brown)
> wire connects to the power tap on the positive battery positive cable
> with a 3/8 QC connector.  If this connector is not making good connection
> even a good alternator will not charge the battery.  Check that out before
> you spend any more money.
>
> Dave
>
>
>
> -----Original Message-----
> From: dctr6 at optonline.net
> To: triumphs at autox.team.net
> Cc: 6pack at autox.team.net
> Sent: Wed, Sep 30, 2020 11:03 am
> Subject: [TR] Alternator not charging battery - 1976 TR6
>
>    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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