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Re: [TR] Alternator not charging battery - 1976 TR6

To: "jdinnis@gmail.com" <jdinnis@gmail.com>, "dctr6@optonline.net" <dctr6@optonline.net>
Subject: Re: [TR] Alternator not charging battery - 1976 TR6
From: DAVID MASSEY <dave1massey@cs.com>
Date: Fri, 2 Oct 2020 19:25:28 +0000 (UTC)
Cc: "triumphs@autox.team.net" <triumphs@autox.team.net>, "6pack@autox.team.net" <6pack@autox.team.net>
Delivered-to: mharc@autox.team.net
Delivered-to: triumphs@autox.team.net
References: <003301d69743$45b45ee0$d11d1ca0$@optonline.net> <CANuE7YDQZbt6R-F=EZxsGD0c7BHx_842pGLS6bPG9sfOxko0ng@mail.gmail.com> x64; rv:81.0) Gecko/20100101 Firefox/81.0
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 The oft overlooked return path.=C2=A0 Since the car is starting one would =
presume the ground is in good nick but perhaps he is relying on the alterna=
te ground paths such as the throttle linkage and the choke cables.=C2=A0 Bu=
t if they work well enough to run the starter motor they should be ample fo=
r the charging circuit.=C2=A0=20

Just thinking out loud.
But this does raise the question.=C2=A0 When measuring the voltage where ar=
e the meter probes placed?=C2=A0 In particular the negative probe?=C2=A0 Is=
 it on the engine block?=C2=A0 Battery negative terminal?=C2=A0 Bumper?=C2=
=A0 What happens if you measure the voltage difference between the engine b=
lock and the battery negative terminal?=C2=A0 This should be really close t=
o zero.=C2=A0=20
=20
Dave=20

=20
=20
-----Original Message-----
From: John Innis <jdinnis@gmail.com>
To: dctr6@optonline.net
Cc: Truiumphs <triumphs@autox.team.net>; list 6pack <6pack@autox.team.net>
Sent: Fri, Oct 2, 2020 1:41 pm
Subject: Re: [TR] Alternator not charging battery - 1976 TR6

Don't forget to check your grounds.=C2=A0 Had a similar issue with a buddys=
 car years ago.=C2=A0 We replaced the battery, the alternator, etc, but pro=
blem persisted.=C2=A0 Eventually we found that the ground strap from the en=
gine to the frame was loose.=C2=A0 Repaired that and all problems went away=
.

On Wed, Sep 30, 2020 at 11:16 AM <dctr6@optonline.net> wrote:

=C2=A0=C2=A0 Here=E2=80=99s a synopsis =E2=80=93 Almost new battery went de=
ad. Charged battery and took car to shop. Meter shows alternator is not cha=
rging battery (only 12 volts, not 14.6 as per Dan Master=E2=80=99s book). B=
uy rebuilt alternator and the same thing happens.=C2=A0 Swap alternator for=
 a second rebuilt unit =E2=80=93 same thing, battery is not being charged. =
Tried 3 different meters =E2=80=93 all showed 12 volts.=C2=A0 Hard to belie=
ve I got 2 bad rebuilt alternators.=C2=A0 What=E2=80=99s wrong??Dennis Cull=
igan, 1976 TR6 ** triumphs@autox.team.net **

Archive: http://www.team.net/pipermail/triumphs=C2=A0 http://www.team.net/a=
rchive

gmail.com



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=3D=3D=3D=3D=3D=3D=3D=3D
=3D Never offend people with style when you=C2=A0=C2=A0 =3D
=3D can offend with substance --- Sam Brown=C2=A0 =3D
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sey@cs.com

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<div style=3D"color:black;font: 12pt Arial, Helvetica, sans-serif;">
<div> <font size=3D"3">The oft overlooked return path.&nbsp; Since the car =
is starting one would presume the ground is in good nick but perhaps he is =
relying on the alternate ground paths such as the throttle linkage and the =
choke cables.&nbsp; But if they work well enough to run the starter motor t=
hey should be ample for the charging circuit.&nbsp; <br>
</font></div>

<div><font size=3D"3"><br>
</font></div>

<div><font size=3D"3">Just thinking out loud.</font></div>

<div><font size=3D"3"><br>
</font></div>

<div><font size=3D"3">But this does raise the question.&nbsp; When measurin=
g the voltage where are the meter probes placed?&nbsp; In particular the ne=
gative probe?&nbsp; Is it on the engine block?&nbsp; Battery negative termi=
nal?&nbsp; Bumper?&nbsp; What happens if you measure the voltage difference=
 between the engine block and the battery negative terminal?&nbsp; This sho=
uld be really close to zero.&nbsp; </font><br>
</div>

<div> <br>
</div>

<div style=3D"clear:both"><font size=3D"4">Dave </font><br>
<br>
</div>

<div> <br>
</div>

<div> <br>
</div>

<div style=3D"font-family:arial,helvetica;font-size:10pt;color:black">-----=
Original Message-----<br>
From: John Innis &lt;jdinnis@gmail.com&gt;<br>
To: dctr6@optonline.net<br>
Cc: Truiumphs &lt;triumphs@autox.team.net&gt;; list 6pack &lt;6pack@autox.t=
eam.net&gt;<br>
Sent: Fri, Oct 2, 2020 1:41 pm<br>
Subject: Re: [TR] Alternator not charging battery - 1976 TR6<br>
<br>

<div id=3D"yiv3976733267">
<div>
<div dir=3D"ltr">Don't forget to check your grounds.&nbsp; Had a similar is=
sue with a buddys car years ago.&nbsp; We replaced the battery, the alterna=
tor, etc, but problem persisted.&nbsp; Eventually we found that the ground =
strap from the engine to the frame was loose.&nbsp; Repaired that and all p=
roblems went away.<br clear=3D"none"></div>
<br clear=3D"none">
<div class=3D"yiv3976733267gmail_quote">
<div class=3D"yiv3976733267yqt5643221965" id=3D"yiv3976733267yqt67766">
<div class=3D"yiv3976733267gmail_attr" dir=3D"ltr">On Wed, Sep 30, 2020 at =
11:16 AM &lt;<a rel=3D"nofollow" shape=3D"rect" ymailto=3D"mailto:dctr6@opt=
online.net" target=3D"_blank" href=3D"mailto:dctr6@optonline.net";>dctr6@opt=
online.net</a>&gt; wrote:<br clear=3D"none"></div>
<blockquote class=3D"yiv3976733267gmail_quote" style=3D"margin:0px 0px 0px =
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex;">
<div lang=3D"EN-US">
<div class=3D"yiv3976733267gmail-m_1236296687223398583WordSection1">
<div class=3D"yiv3976733267MsoNormal">&nbsp;&nbsp; Here=E2=80=99s a synopsi=
s =E2=80=93 Almost new battery went dead. Charged battery and took car to s=
hop. Meter shows alternator is not charging battery (only 12 volts, not 14.=
6 as per Dan Master=E2=80=99s book). Buy rebuilt alternator and the same th=
ing happens.&nbsp; Swap alternator for a second rebuilt unit =E2=80=93 same=
 thing, battery is not being charged. Tried 3 different meters =E2=80=93 al=
l showed 12 volts.&nbsp; Hard to believe I got 2 bad rebuilt alternators.&n=
bsp; What=E2=80=99s wrong??<u></u><u></u></div>

<div class=3D"yiv3976733267MsoNormal">Dennis Culligan, 1976 TR6 <u></u><u><=
/u></div>
</div>
</div>
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</blockquote></div>
</div>
<br clear=3D"all"><br clear=3D"none">-- <br clear=3D"none">
<div class=3D"yiv3976733267gmail_signature" dir=3D"ltr">=3D=3D=3D=3D=3D=3D=
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=3D=3D<br clear=3D"none">=3D Never offend people with style when you&nbsp;&=
nbsp; =3D<br clear=3D"none">=3D can offend with substance --- Sam Brown&nbs=
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