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A high reading indicates there is a higher current flowing through
the gauge, so a poor connection is unlikely. Is your tank near empty or
full? A bad regulator might make less of a difference if the gauge is near
empty.
The voltage regulator gets its ground through it's mounting screw. It
would not be a first if there's a bit of corrosion under there. In a quiet
place, turn on the key, don't start it, and you should be able to hear the
stock voltage regulator ticking away..
For some more hints, here's a link to my old article on gauge
troubleshooting.
TigersUnited.com
<http://www.tigersunited.com/techtips/BrennanGauge/rt-BrennanGauge1.asp>
Both gauges have the same innards, so you can swap leads and see what
happens with the pointer angles.
Stu
On Thu, Aug 21, 2025 at 5:57=E2=80=AFPM gharlowe--- via Tigers <
tigers@autox.team.net> wrote:
>
>
> Hey all =E2=80=93
>
>
>
> It=E2=80=99s been quiet here so hoping to T-up an easy discussion.
>
>
>
> My temp gauge is reading about 25 degrees high. I noticed it after a
> shop installed a new clutch, which required the engine to be removed,
> coolant drained, etc., but nothing that should have affected how the gaug=
e
> reads. Running on a cool day, temps were reading around 215-220 degrees.
> To ensure I wasn=E2=80=99t actually in danger of overheating, I checked v=
arious
> water-cooled locations with an infrared thermometer. Highest reading wa=
s
> right at the water neck/thermostat housing (191 deg F). The fuel gauge =
is
> reading accurately. I understand the under-dash instrument stabilizer ca=
n
> affect both instruments, but in this case, only one gauge is off. I plan
> to check the ground to the temp gauge and clean contact points at the
> engine sending unit and at the gauge. Any other suggestions?
>
>
>
> Thanks and I hope all is well out there!
>
>
>
> Graham Harlowe
>
> B382001466
> _______________________________________________
>
> tigers@autox.team.net
>
> Donate: http://www.team.net/donate.html
> Archive: http://www.team.net/pipermail/tigers
> http://autox.team.net/archive
>
> Unsubscribe:
> http://autox.team.net/mailman/options/tigers/sabre2tgr@gmail.com
>
>
>
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<div dir=3D"ltr"><div dir=3D"ltr"><div class=3D"gmail_default" style=3D"fon=
t-size:small">A high reading indicates there is a higher current flowing th=
rough the=C2=A0gauge,=C2=A0 so a poor connection is unlikely.=C2=A0 Is your=
tank near empty or full?=C2=A0 A bad regulator might make less of a differ=
ence if the gauge is near empty.</div><div class=3D"gmail_default" style=3D=
"font-size:small"><br></div><div class=3D"gmail_default" style=3D"font-size=
:small">The voltage regulator gets its ground through it's mounting scr=
ew.=C2=A0 It would not be a first if there's a bit of corrosion under t=
here.=C2=A0 In a quiet place, turn on the key, don't start it, and you =
should be able to hear the=C2=A0 stock voltage regulator ticking away..</di=
v><div class=3D"gmail_default" style=3D"font-size:small"><br></div><div cla=
ss=3D"gmail_default" style=3D"font-size:small">For some more hints, here=
9;s a link to my old article on gauge troubleshooting.=C2=A0=C2=A0</div><di=
v class=3D"gmail_default" style=3D"font-size:small"><br></div><div class=3D=
"gmail_default" style=3D"font-size:small"><a href=3D"http://www.tigersunite=
d.com/techtips/BrennanGauge/rt-BrennanGauge1.asp">TigersUnited.com</a></div=
><div class=3D"gmail_default" style=3D"font-size:small"><br></div><div clas=
s=3D"gmail_default" style=3D"font-size:small">Both gauges have the same inn=
ards, so you can swap leads and see what happens with the pointer angles.=
=C2=A0 =C2=A0</div><div class=3D"gmail_default" style=3D"font-size:small"><=
br></div><div class=3D"gmail_default" style=3D"font-size:small">Stu</div></=
div></div><br><div class=3D"gmail_quote gmail_quote_container"><div dir=3D"=
ltr" class=3D"gmail_attr">On Thu, Aug 21, 2025 at 5:57=E2=80=AFPM gharlowe-=
-- via Tigers <<a href=3D"mailto:tigers@autox.team.net";>tigers@autox.tea=
m.net</a>> wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"ma=
rgin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:=
1ex"><div class=3D"msg4261204768346279919"><div lang=3D"EN-US" style=3D"ove=
rflow-wrap: break-word;"><div class=3D"m_4261204768346279919WordSection1"><=
p class=3D"MsoNormal"><span style=3D"font-size:11pt"><u></u>=C2=A0<u></u></=
span></p><p class=3D"MsoNormal"><span style=3D"font-size:11pt">Hey all =E2=
=80=93<u></u><u></u></span></p><p class=3D"MsoNormal"><span style=3D"font-s=
ize:11pt"><u></u>=C2=A0<u></u></span></p><p class=3D"MsoNormal"><span style=
=3D"font-size:11pt">It=E2=80=99s been quiet here so hoping to T-up an easy =
discussion.=C2=A0 <u></u><u></u></span></p><p class=3D"MsoNormal"><span sty=
le=3D"font-size:11pt"><u></u>=C2=A0<u></u></span></p><p class=3D"MsoNormal"=
><span style=3D"font-size:11pt">My temp gauge is reading about 25 degrees h=
igh.=C2=A0 =C2=A0I noticed it after a shop installed a new clutch, which re=
quired the engine to be removed, coolant drained, etc., but nothing that sh=
ould have affected how the gauge reads.=C2=A0 Running on a cool day, temps =
were reading around 215-220 degrees.=C2=A0 To ensure I wasn=E2=80=99t actua=
lly in danger of overheating, I checked various water-cooled locations with=
an infrared thermometer.=C2=A0=C2=A0 Highest reading was right at the wate=
r neck/thermostat housing (191 deg F).=C2=A0=C2=A0 The fuel gauge is readin=
g accurately.=C2=A0 I understand the under-dash instrument stabilizer can a=
ffect both instruments, but in this case, only one gauge is off.=C2=A0 I pl=
an to check the ground to the temp gauge and clean contact points at the en=
gine sending unit and at the gauge.=C2=A0=C2=A0 Any other suggestions?=C2=
=A0 <u></u><u></u></span></p><p class=3D"MsoNormal"><span style=3D"font-siz=
e:11pt"><u></u>=C2=A0<u></u></span></p><p class=3D"MsoNormal"><span style=
=3D"font-size:11pt">Thanks and I hope all is well out there!<u></u><u></u><=
/span></p><p class=3D"MsoNormal"><span style=3D"font-size:11pt"><u></u>=C2=
=A0<u></u></span></p><p class=3D"MsoNormal"><span style=3D"font-size:11pt">=
Graham Harlowe<u></u><u></u></span></p><p class=3D"MsoNormal"><span style=
=3D"font-size:11pt">B382001466<u></u><u></u></span></p></div></div>________=
_______________________________________<br>
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</div></blockquote></div>
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