Subject: Re: [TR] Temp Gauge failing?

From: CFM-TR <[email-masked]>
Date: Sun, 20 Oct 2019 14:23:40 -0400

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do you have a thermal sensor gauge? something to determine temp of stat hou=
sing?=C2=A0 or a gauge you can put in coolant after you open rad cap (caref=
ully)?=C2=A0 to see if temp gauge reading correct=2E

assuming not=2E=C2=A0=
 I'm stumped=2E

=E2=81=A3Get BlueMail for Android =E2=80=8B

On Oct 20, 20=
19, 2:01 PM, at 2:01 PM, William Pugh <anabil007@comcast=2Enet> wrote:
>Jus=
t put in new thermostat =E2=80=A6 hard job =E2=80=A6 but all went well, tem=
p gauge
>worked perfectly =E2=80=A6 until yesterday =E2=80=A6 went for shor=
t drive (20 miles)
>temp seemed too low around 120 F, had nice lunch, Then =
on the way home
>temp gauge never moved off the mark=2E
>
>This is a Smith =
double gauge, oil pressure  & temp=2E   1957 TR3  I
>checked the capillary =
tube, dry as a bone=2E
>
>What would the next check that I should take?
>
>=
Thanks to all
>Bill Pugh
>po box 83
>Wallace, CA 95254
>209-210-8019	mobile=

>Life is too short
>to drive Boring Cars
>** triumphs@autox=
=2Eteam=2Enet **
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<html><head></head><body style=3D"zoom: 0%;"><div dir=3D"auto">do you have =
a thermal sensor gauge? something to determine temp of stat housing?=C2=A0 =
or a gauge you can put in coolant after you open rad cap (carefully)?=C2=A0=
 to see if temp gauge reading correct=2E<br><br></div>
<div dir=3D"auto">as=
suming not=2E=C2=A0 I'm stumped=2E<br><br></div>
<div dir=3D"auto"><!-- tmj=
ah_g_1299s -->Get <!-- tmjah_g_1299e --><a href=3D"http://www=2Ebluemail=2E=
me/r?b=3D15704"><!-- tmjah_g_1299s -->BlueMail for Android<!-- tmjah_g_1299=
e --></a><!-- tmjah_g_1299s --> <!-- tmjah_g_1299e --></div>
<div class=3D"=
gmail_quote" >On Oct 20, 2019, at 2:01 PM, William Pugh &lt;<a href=3D"mail=
to:anabil007@comcast=2Enet" target=3D"_blank">anabil007@comcast=2Enet</a>&g=
t; wrote:<blockquote class=3D"gmail_quote" style=3D"margin: 0pt 0pt 0pt 0=
=2E8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<pr=
e class=3D"blue">Just put in new thermostat =E2=80=A6 hard job =E2=80=A6 bu=
t all went well, temp gauge worked perfectly =E2=80=A6 until yesterday =E2=
=80=A6 went for short drive (20 miles) temp seemed too low around 120 F, ha=
d nice lunch, Then on the way home temp gauge never moved off the mark=2E<b=
r><br>This is a Smith double gauge, oil pressure  &amp; temp=2E   1957 TR3 =
 I checked the capillary tube, dry as a bone=2E<br><br>What would the next =
check that I should take?<br><br>Thanks to all<br>Bill Pugh<br>po box 83<br=
>Wallace, CA 95254<br>209-210-8019 mobile<br><br><br><br><br>Life is too sh=
ort<br>to drive Boring Cars<br><br><br><br>** triumphs@autox=2Eteam=2Enet *=
*<br><br>Donate: <a href=3D"http://www=2Eteam=2Enet/donate=2Ehtml">http://w=
ww=2Eteam=2Enet/donate=2Ehtml</a><br>Archive: <a href=3D"http://www=2Eteam=
=2Enet/pipermail/triumphs">http://www=2Eteam=2Enet/pipermail/triumphs</a>  =
<a href=3D"http://www=2Eteam=2Enet/archive">http://www=2Eteam=2Enet/archive=
</a><br><br>Unsubscribe/Manage: <a href=3D"http://autox=2Eteam=2Enet/mailma=
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/options/triumphs/cfmtr3a@verizon=2Enet</a><br></pre></blockquote></div></b=
ody></html>
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From: "Andrew Uprichard" <[email-masked]>
Date: Sun, 20 Oct 2019 16:01:12 -0400

I think the thermostat is a red herring - I cannot see a situation where you go for a drive and the engine temp doesn't go up.  But (as already suggested), go buy one of those sensors and see what the thermostat housing temp is when the gauge is reading zero.  Then replace the gauge :-)

Andrew Uprichard
Jackson, Mi

-----Original Message-----
From: Triumphs [mailto:[email-masked]] On Behalf Of William Pugh
Sent: Sunday, October 20, 2019 2:02 PM
To: TR3/6
Subject: [TR] Temp Gauge failing?

Just put in new thermostat … hard job … but all went well, temp gauge worked perfectly … until yesterday … went for short drive (20 miles) temp seemed too low around 120 F, had nice lunch, Then on the way home temp gauge never moved off the mark.

This is a Smith double gauge, oil pressure  & temp.   1957 TR3  I checked the capillary tube, dry as a bone.

Thanks to all
Bill Pugh
po box 83
Wallace, CA 95254
209-210-8019	mobile

Life is too short
to drive Boring Cars

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---

From: "Randall" <[email-masked]>
Date: Sun, 20 Oct 2019 15:33:39 -0700

I'm with Andrew.  My guess is that the act of changing the thermostat caused
a tiny crack in the capillary tube, which has been slowly letting ether gas
escape.  Yesterday there was enough ether left inside to push the gauge to
120F (even though the coolant was probably much hotter), today there isn't
enough to move it at all.

Getting your gauge rebuilt may be marginally cheaper than a new one, but
still not cheap.

-- Randall 
56 TR3 TS13571L once and future daily driver
71 Stag LE1473 - awaiting engine rebuild
71-2-3 Stag - awaiting gearbox rebuild 

>   But (as already suggested), go buy one of 
> those sensors and see what the thermostat housing temp is 
> when the gauge is reading zero.  Then replace the gauge :-)
>

---

From: William Pugh <[email-masked]>
Date: Sun, 20 Oct 2019 18:29:30 -0700

Bingo!!  Exactly the reason …. new Smiths gauge now on the way …

> On Oct 20, 2019, at 3:33 PM, Randall <[email-masked]> wrote:
> 

Life is too short
to drive Boring Cars