Subject: Re: [Healeys] radiator thermostat

From: richard mayor <[email-masked]>
Date: Wed, 17 Sep 2025 16:09:14 -0700

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Hank makes a very good point about where to measure the water temp.  And =
to get an infrared temperature sensor.  I recently fired up a fresh V8 =
engine to break in the cam.  I had also bought a new water temp gauge =
with sensor.  The new  sensor was screwed into a port on the cylinder =
head.  As we were running the engine I saw the temp climb and approach =
220 degrees but fortunately I had my infrared sensor.  The water temp =
was actually quite lower and I was able to take readings from various =
places in the system.  If I had relied solely on the gauge I would have =
freaked out and probably shut the engine down.

Just another example of the garbage that is being sold in the parts =
stores these days.  =20
=20
Richard Mayor
[email-masked]

> On Sep 17, 2025, at 3:47=E2=80=AFPM, Hank Leach <[email-masked]> =
wrote:
>=20
> I would like to comment about the position of the temperature "sensor" =
found in the Healey. All of them-100s and 3000s measure the =
water/antifreeze temperature flowing thru the radiator. That is not =
necessarily the temperature of the engine itself. Using a heat detector =
gun (Harbor Freight) you can actually see the head, block and exhaust =
readings and they will be different than the degrees indicated which has =
been read in the water flowing and transferred down a long capillary =
tube to an analog gauge.
> =20
> In contrast, most older American cars, and incidentally the =
Jensen-Healey, measure the temperature of the manifold, or the block, by =
electronic sensor to an analog gauge.
> =20
> I'm sure todays' vehicles have more accurate measurements, but they =
don't tell us what that actual number is unless an icon illuminates on =
the dash indicating a problem with temperature. I guess that ancient =
type of measurement is what gives the Healey its charm. Be it Fahrenheit =
or Centigrade. Hank
>=20
> --------------------=20
>=20
> From: "Harold Manifold" <[email-masked]>=20
> To: "Richard Mayor" <[email-masked]>=20
> Cc: "Richard Antal" <[email-masked]>, "Healeys" =
<[email-masked]>=20
> Sent: September 17, 2025 at 3:05 PM PDT=20
> Subject: Re: [Healeys] radiator thermostat
> Hi All,
> =20
> Thermostats always generate interesting discussions.
> =20
> I use a 180-degree thermostat in my car. However, what's equally =
important is how effectively the thermostat regulates the coolant =
temperature. A thermostat that is fully closed or fully open is no =
longer actively controlling the temperature. The normal operating range =
is typically the opening temperature plus 20 degrees. For example, a =
165-degree thermostat should maintain the temperature between 165 and =
185 degrees, while a 180-degree thermostat should keep it between 180 =
and 200 degrees.
> =20
> If your current thermostat maintains the coolant temperature within =
its specified range under normal driving conditions, then it's the =
correct one for your needs.
> =20
> Harold
> =20
> On Wed, Sep 17, 2025 at 1:36=E2=80=AFPM Richard Mayor =
>> 165 is too cold for good running.  Our engines run better in the 180 =
to 190 range. =20
>> =20
>>=20
>> Sent from my iPad
>>=20
>> On Sep 17, 2025, at 12:13=E2=80=AFPM, Robert Markovich via Healeys =
>>=20
>> 165 is the one I use
>>=20
>>=20
>> Sent from the all new AOL app for iOS =
<https://aolapp.onelink.me/eG2g?pid=3DNativePlacement&c=3DUS_Acquisition_Y=
Mktg_320_EmailSignature_AttributionDL&af_sub1=3DAcquisition&af_sub2=3DUS_Y=
Mktg&af_sub3=3D&af_sub4=3D100002473&af_sub5=3DSentFromNewAOLApp__Interstit=
ial_&af_ios_store_cpp=3Dce85ce34-ad0f-4811-a92b-a172743b064e&af_android_ur=
l=3Dhttps%3A%2F%2Fplay.google.com%2Fstore%2Fapps%2Fdetails%3Fid%3Dcom.aol.=
mobile.aolapp%26listing%3Demail_signature_attribution>
>> On Wednesday, September 17, 2025, 2:50 PM, Richard Antal via Healeys =
>>=20
>> Gents,
>>      What is the desired coolant temperature for optimal engine =
performance? I've searched the tech articles and can find nothing that =
specifically answers that question. This summer my BJ8 seemed to run =
fine with a 160 thermostat which, according to the gauge which I've =
checked and found to be accurate, kept the coolant at around 165. Thanks =
to all who respond.
>> rich antal
>> _______________________________________________
>> Support Team.Net http://www.team.net/donate.html
>> Suggested annual donation  $12.75
>>=20
>> Archive: http://www.team.net/pipermail/healeys =
http://autox.team.net/archive/healeys
>>=20
>> http://autox.team.net/mailman/listinfo/healeys
>>=20
>> Unsubscribe/Manage: =
http://autox.team.net/mailman/options/healeys/[email-masked]
>>=20
>> _______________________________________________
>> Support Team.Net http://www.team.net/donate.html
>> Suggested annual donation  $12.75
>>=20
>> Archive: http://www.team.net/pipermail/healeys =
http://autox.team.net/archive/healeys
>>=20
>> http://autox.team.net/mailman/listinfo/healeys
>>=20
>> Unsubscribe/Manage: =
http://autox.team.net/mailman/options/healeys/[email-masked]
>>=20
>> _______________________________________________
>> Support Team.Net http://www.team.net/donate.html
>> Suggested annual donation  $12.75
>>=20
>> Archive: http://www.team.net/pipermail/healeys =
http://autox.team.net/archive/healeys
>>=20
>> http://autox.team.net/mailman/listinfo/healeys
>>=20
>> Unsubscribe/Manage: =
http://autox.team.net/mailman/options/healeys/[email-masked]
>>=20
>=20
> =20

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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; =
charset=3Dutf-8"></head><body style=3D"overflow-wrap: break-word; =
-webkit-nbsp-mode: space; line-break: after-white-space;">Hank makes a =
very good point about where to measure the water temp. &nbsp;And to get =
an infrared temperature sensor. &nbsp;I recently fired up a fresh V8 =
engine to break in the cam. &nbsp;I had also bought a new water temp =
gauge with sensor. &nbsp;The new &nbsp;sensor was screwed into a port on =
the cylinder head. &nbsp;As we were running the engine I saw the temp =
climb and approach 220 degrees but fortunately I had my infrared sensor. =
&nbsp;The water temp was actually quite lower and I was able to take =
readings from various places in the system. &nbsp;If I had relied solely =
on the gauge I would have freaked out and probably shut the engine =
down.<div><br></div><div>Just another example of the garbage that is =
being sold in the parts stores these days. &nbsp;&nbsp;<div>&nbsp;<br =
id=3D"lineBreakAtBeginningOfMessage"><div>
<div>Richard =
Mayor</div><div>[email-masked]</div><div><br></div><br =
class=3D"Apple-interchange-newline">

</div>
<div><br><blockquote type=3D"cite"><div>On Sep 17, 2025, at 3:47=E2=80=AFP=
M, Hank Leach &lt;[email-masked]&gt; wrote:</div><br =
class=3D"Apple-interchange-newline"><div><div>I would like to comment =
about the position of the temperature "sensor" found in the Healey. All =
of them-100s and 3000s measure the water/antifreeze temperature <span =
style=3D"text-decoration: underline;">flowing thru the radiator</span>. =
That is not necessarily the temperature of the engine itself. Using a =
heat detector gun (Harbor Freight) you can actually see the head, block =
and exhaust readings and they will be different than the degrees =
indicated which has been read in the water flowing and transferred down =
a long capillary tube to an analog gauge.</div>
<div>&nbsp;</div>
<div>In contrast, most older American cars, and incidentally the =
Jensen-Healey, measure the temperature of the manifold, or the block, by =
electronic sensor to an analog gauge.</div>
<div>&nbsp;</div>
<div>I'm sure todays' vehicles have more accurate measurements, but they =
don't tell us what that actual number is unless an icon illuminates on =
the dash indicating a problem with temperature. I guess that ancient =
type of measurement is what gives the Healey its charm. Be it Fahrenheit =
or Centigrade. Hank</div>
<div><br>-------------------- <br><br>From: "Harold Manifold" =
&lt;[email-masked]&gt; <br>To: "Richard Mayor" =
&lt;[email-masked]&gt; <br>Cc: "Richard Antal" =
&lt;[email-masked]&gt;, "Healeys" &lt;[email-masked]&gt; =
<br>Sent: September 17, 2025 at 3:05 PM PDT <br>Subject: Re: [Healeys] =
radiator thermostat </div>
<div>
<div>Hi All,</div>
<div>&nbsp;</div>
<div>Thermostats always generate interesting discussions.</div>
<div>&nbsp;</div>
<div>I use a 180-degree thermostat in my car. However, what's equally =
important is how effectively the thermostat regulates the coolant =
temperature. A thermostat that is fully closed or fully open is no =
longer actively controlling the temperature. The normal operating range =
is typically the opening temperature plus 20 degrees. For example, a =
165-degree thermostat should maintain the temperature between 165 and =
185 degrees, while a 180-degree thermostat should keep it between 180 =
and 200 degrees.</div>
<div>&nbsp;</div>
<div>If your current thermostat maintains the coolant temperature within =
its specified range under normal driving conditions, then it's the =
correct one for your needs.</div>
<div>&nbsp;</div>
<div>Harold</div>
</div>
<div>&nbsp;</div>
<div class=3D"gmail_quote gmail_quote_container">
<div class=3D"gmail_attr">On Wed, Sep 17, 2025 at 1:36=E2=80=AFPM =
Richard Mayor &lt;<a =
href=3D"mailto:[email-masked]">[email-masked]</a>&gt; =
wrote:</div>
<blockquote class=3D"gmail_quote" style=3D"margin: 0px 0px 0px 0.8ex; =
border-left: 1px solid rgb(204,204,204); padding-left: 1ex;">
<div>165 is too cold for good running.&nbsp; Our engines run better in =
the 180 to 190 range. &nbsp;
<div>&nbsp;</div>
<div><br>
<div>
<div>Sent from my iPad</div>
<div><br>
<blockquote>On Sep 17, 2025, at 12:13=E2=80=AFPM, Robert Markovich via =
Healeys &lt;<a href=3D"mailto:[email-masked]" target=3D"_blank" =
rel=3D"noopener">[email-masked]</a>&gt; =
wrote:<br><br></blockquote>
</div>
<blockquote>
<div>165 is the one I use<br><br><br>
<div><a style=3D"font-size: 12px;" =
href=3D"https://aolapp.onelink.me/eG2g?pid=3DNativePlacement&amp;c=3DUS_Ac=
quisition_YMktg_320_EmailSignature_AttributionDL&amp;af_sub1=3DAcquisition=
&amp;af_sub2=3DUS_YMktg&amp;af_sub3=3D&amp;af_sub4=3D100002473&amp;af_sub5=
=3DSentFromNewAOLApp__Interstitial_&amp;af_ios_store_cpp=3Dce85ce34-ad0f-4=
811-a92b-a172743b064e&amp;af_android_url=3Dhttps%3A%2F%2Fplay.google.com%2=
Fstore%2Fapps%2Fdetails%3Fid%3Dcom.aol.mobile.aolapp%26listing%3Demail_sig=
nature_attribution" target=3D"_blank" rel=3D"noopener">Sent from the all =
new AOL app for iOS</a></div>
<br><p style=3D"font-size: 15px; color: rgb(132,115,255); padding-top: =
15px; margin-top: 0px;">On Wednesday, September 17, 2025, 2:50 PM, =
Richard Antal via Healeys &lt;<a href=3D"mailto:[email-masked]" =
target=3D"_blank" rel=3D"noopener">[email-masked]</a>&gt; =
wrote:</p>
<blockquote>
<div id=3D"m_3862331438548245316yiv6324880639">
<div>
<div style=3D"font-family: 'Helvetica Neue',Helvetica,Arial,sans-serif; =
font-size: 13px;">
<div>Gents,</div>
<div>&nbsp; &nbsp; &nbsp;What is the desired coolant temperature for =
optimal engine performance? I've searched the tech articles and can find =
nothing that specifically answers that question. This summer my BJ8 =
seemed to run fine with a 160 thermostat which, according to the gauge =
which I've checked and found to be accurate, kept the coolant at around =
165. Thanks to all who respond.</div>
<div>rich antal</div>
</div>
</div>
</div>
_______________________________________________<br>Support Team.Net <a =
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From: Michael Salter <[email-masked]>
Date: Thu, 18 Sep 2025 02:11:05 +0000

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[email-masked]

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From: Roger Grace <[email-masked]>
Date: Wed, 17 Sep 2025 19:53:57 -0700

--===============1325420548042555279==

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On my BJ8 I measure the coolant temp in the top hose.This is generally
about 10F less than the Smiths. I attribute this to the temp loss in the
hose ? Have calibrated this sensor with a mercury stick thermometer and it
is within a few degrees on the Smiths.  BTW hot coolant enters the rad.
from the top.
rg

On Wed, Sep 17, 2025 at 7:32=E2=80=AFPM Michael Salter <michael.salter@gmai=
l.com>
wrote:

> Something else to remember is that the temperature bulb is located either
> in the top tank of the radiator 100's & 100/6 or directly below the
> thermostat housing where the coolant which has passed through the radiato=
r
> enters the engine. This means that the coolant in the engine and exiting
> from the engine is probably significantly hotter.
> Has anyone actually measured the temperature of the coolant as it enters
> the radiator at the bottom?
> It could well be that magic 185=C2=B0F that an engine apparently requires=
 for
> best operation occurs at a significantly lower indicated temperature.
>
> M
>
>
>
> ------------------------------
> *From:* Healeys <[email-masked]> on behalf of richard
> mayor <[email-masked]>
> *Sent:* Wednesday, September 17, 2025 7:09:14 PM
> *To:* Leach Hank <[email-masked]>
> *Cc:* Richard Antal <[email-masked]>; Healeys <[email-masked]=
t
> >
> *Subject:* Re: [Healeys] radiator thermostat
>
> Hank makes a very good point about where to measure the water temp.  And
> to get an infrared temperature sensor.  I recently fired up a fresh V8
> engine to break in the cam.  I had also bought a new water temp gauge wit=
h
> sensor.  The new  sensor was screwed into a port on the cylinder head.  A=
s
> we were running the engine I saw the temp climb and approach 220 degrees
> but fortunately I had my infrared sensor.  The water temp was actually
> quite lower and I was able to take readings from various places in the
> system.  If I had relied solely on the gauge I would have freaked out and
> probably shut the engine down.
>
> Just another example of the garbage that is being sold in the parts store=
s
> these days.
>
> Richard Mayor
> [email-masked]
>
>
>
> On Sep 17, 2025, at 3:47=E2=80=AFPM, Hank Leach <[email-masked]> wro=
te:
>
> I would like to comment about the position of the temperature "sensor"
> found in the Healey. All of them-100s and 3000s measure the
> water/antifreeze temperature flowing thru the radiator. That is not
> necessarily the temperature of the engine itself. Using a heat detector g=
un
> (Harbor Freight) you can actually see the head, block and exhaust reading=
s
> and they will be different than the degrees indicated which has been read
> in the water flowing and transferred down a long capillary tube to an
> analog gauge.
>
> In contrast, most older American cars, and incidentally the Jensen-Healey=
,
> measure the temperature of the manifold, or the block, by electronic sens=
or
> to an analog gauge.
>
> I'm sure todays' vehicles have more accurate measurements, but they don't
> tell us what that actual number is unless an icon illuminates on the dash
> indicating a problem with temperature. I guess that ancient type of
> measurement is what gives the Healey its charm. Be it Fahrenheit or
> Centigrade. Hank
>
> --------------------
>
> From: "Harold Manifold" <[email-masked]>
> To: "Richard Mayor" <[email-masked]>
> Cc: "Richard Antal" <[email-masked]>, "Healeys" <
> [email-masked]>
> Sent: September 17, 2025 at 3:05 PM PDT
> I use a 180-degree thermostat in my car. However, what's equally importan=
t
> is how effectively the thermostat regulates the coolant temperature. A
> thermostat that is fully closed or fully open is no longer actively
> controlling the temperature. The normal operating range is typically the
> opening temperature plus 20 degrees. For example, a 165-degree thermostat
> should maintain the temperature between 165 and 185 degrees, while a
> 180-degree thermostat should keep it between 180 and 200 degrees.
>
> If your current thermostat maintains the coolant temperature within its
> specified range under normal driving conditions, then it's the correct on=
e
> for your needs.
>
> Harold
>
> On Wed, Sep 17, 2025 at 1:36=E2=80=AFPM Richard Mayor <boyracer466@gmail.=
com>
> wrote:
>
> 165 is too cold for good running.  Our engines run better in the 180 to
> 190 range.
>
>
> Sent from my iPad
>
> On Sep 17, 2025, at 12:13=E2=80=AFPM, Robert Markovich via Healeys <
> [email-masked]> wrote:
>
> 165 is the one I use
>
>
> Sent from the all new AOL app for iOS
> <https://aolapp.onelink.me/eG2g?pid=3DNativePlacement&c=3DUS_Acquisition_=
YMktg_320_EmailSignature_AttributionDL&af_sub1=3DAcquisition&af_sub2=3DUS_Y=
Mktg&af_sub3=3D&af_sub4=3D100002473&af_sub5=3DSentFromNewAOLApp__Interstiti=
al_&af_ios_store_cpp=3Dce85ce34-ad0f-4811-a92b-a172743b064e&af_android_url=
=3Dhttps%3A%2F%2Fplay.google.com%2Fstore%2Fapps%2Fdetails%3Fid%3Dcom.aol.mo=
bile.aolapp%26listing%3Demail_signature_attribution>
>
> On Wednesday, September 17, 2025, 2:50 PM, Richard Antal via Healeys <
> [email-masked]> wrote:
>
> Gents,
>      What is the desired coolant temperature for optimal engine
> performance? I've searched the tech articles and can find nothing that
> specifically answers that question. This summer my BJ8 seemed to run fine
> with a 160 thermostat which, according to the gauge which I've checked an=
d
> found to be accurate, kept the coolant at around 165. Thanks to all who
> respond.
> rich antal
> Unsubscribe/Manage:
> Unsubscribe/Manage:
> Unsubscribe/Manage:
> Unsubscribe/Manage:
> http://autox.team.net/mailman/options/healeys/[email-masked]
>
>

--0000000000001c7237063f0a79bc
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-size:large">On =
my BJ8 I measure the coolant temp in the top hose.This is generally about 1=
0F less than the Smiths. I attribute this to the temp loss in the hose ? Ha=
ve calibrated this sensor with a mercury=C2=A0stick thermometer and it is w=
ithin a few degrees=C2=A0on the Smiths.=C2=A0 BTW hot coolant enters the ra=
d. from the top.</div><div class=3D"gmail_default" style=3D"font-size:large=
">rg</div><div class=3D"gmail_default" style=3D"font-size:large"><br></div>=
</div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">=
On Wed, Sep 17, 2025 at 7:32=E2=80=AFPM Michael Salter &lt;<a href=3D"mailt=
o:[email-masked]" target=3D"_blank">[email-masked]</a>&=
gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0=
px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">

<div>
<div dir=3D"auto" style=3D"font-family:Aptos,Aptos_MSFontService,-apple-sys=
tem,Roboto,Arial,Helvetica,sans-serif;font-size:12pt">
Something else to remember is that the temperature bulb is located either i=
n the top tank of the radiator 100&#39;s &amp; 100/6 or directly below the =
thermostat housing where the coolant which has passed through the radiator =
enters the engine. This means that the coolant
 in the engine and exiting from the engine is probably significantly hotter=
.=C2=A0</div>
<div dir=3D"auto" style=3D"font-family:Aptos,Aptos_MSFontService,-apple-sys=
tem,Roboto,Arial,Helvetica,sans-serif;font-size:12pt">
Has anyone actually measured the temperature of the coolant as it enters th=
e radiator at the bottom?</div>
<div dir=3D"auto" style=3D"font-family:Aptos,Aptos_MSFontService,-apple-sys=
tem,Roboto,Arial,Helvetica,sans-serif;font-size:12pt">
It could well be that magic 185=C2=B0F that an engine apparently requires f=
or best operation occurs at a significantly lower indicated temperature.=C2=
=A0</div>
<div dir=3D"auto" style=3D"font-family:Aptos,Aptos_MSFontService,-apple-sys=
tem,Roboto,Arial,Helvetica,sans-serif;font-size:12pt">
<br>
</div>
<div dir=3D"auto" style=3D"font-family:Aptos,Aptos_MSFontService,-apple-sys=
tem,Roboto,Arial,Helvetica,sans-serif;font-size:12pt">
M</div>
<div dir=3D"auto" style=3D"font-family:Aptos,Aptos_MSFontService,-apple-sys=
tem,Roboto,Arial,Helvetica,sans-serif;font-size:12pt">
<br>
</div>
<div id=3D"m_-137577282233278094m_-1449391584320249839ms-outlook-mobile-bod=
y-separator-line" dir=3D"auto" style=3D"font-family:Aptos,Aptos_MSFontServi=
ce,-apple-system,Roboto,Arial,Helvetica,sans-serif;font-size:12pt">
<div dir=3D"auto" style=3D"font-family:Aptos,Aptos_MSFontService,-apple-sys=
tem,Roboto,Arial,Helvetica,sans-serif;font-size:12pt">
<br>
</div>
</div>
<div dir=3D"auto" style=3D"font-family:Aptos,Aptos_MSFontService,-apple-sys=
tem,Roboto,Arial,Helvetica,sans-serif;font-size:12pt" id=3D"m_-137577282233=
278094m_-1449391584320249839ms-outlook-mobile-signature">
<div dir=3D"auto" style=3D"font-family:Aptos,Aptos_MSFontService,-apple-sys=
tem,Roboto,Arial,Helvetica,sans-serif;font-size:12pt">
<br>
</div>
</div>
<hr style=3D"display:inline-block;width:98%">
<div id=3D"m_-137577282233278094m_-1449391584320249839divRplyFwdMsg" dir=3D=
"ltr"><font face=3D"Calibri, sans-serif" style=3D"font-size:11pt" color=3D"=
#000000"><b>From:</b> Healeys &lt;<a href=3D"mailto:[email-masked]=
eam.net" target=3D"_blank">[email-masked]</a>&gt; on behalf=
 of richard mayor &lt;<a href=3D"mailto:[email-masked]" target=3D"_b=
lank">[email-masked]</a>&gt;<br>
<b>Sent:</b> Wednesday, September 17, 2025 7:09:14 PM<br>
<b>To:</b> Leach Hank &lt;<a href=3D"mailto:[email-masked]" target=3D"=
_blank">[email-masked]</a>&gt;<br>
<b>Cc:</b> Richard Antal &lt;<a href=3D"mailto:[email-masked]" target=
=3D"_blank">[email-masked]</a>&gt;; Healeys &lt;<a href=3D"mailto:heal=
[email-masked]" target=3D"_blank">[email-masked]</a>&gt;<br>
<b>Subject:</b> Re: [Healeys] radiator thermostat</font>
<div>=C2=A0</div>
</div>
<div>Hank makes a very good point about where to measure the water temp.=C2=
=A0 And to get an infrared temperature sensor.=C2=A0 I recently fired up a =
fresh V8 engine to break in the cam.=C2=A0 I had also bought a new water te=
mp gauge with
 sensor.=C2=A0 The new =C2=A0sensor was screwed into a port on the cylinder=
 head.=C2=A0 As we were running the engine I saw the temp climb and approac=
h 220 degrees but fortunately I had my infrared sensor.=C2=A0 The water tem=
p was actually quite lower and I was able to take readings
 from various places in the system.=C2=A0 If I had relied solely on the gau=
ge I would have freaked out and probably shut the engine down.
<div><br>
</div>
<div>Just another example of the garbage that is being sold in the parts st=
ores these days. =C2=A0=C2=A0
<div>=C2=A0<br id=3D"m_-137577282233278094m_-1449391584320249839x_lineBreak=
AtBeginningOfMessage">
<div>
<div>Richard Mayor</div>
<div><a href=3D"mailto:[email-masked]" target=3D"_blank">boyracer466=
@gmail.com</a></div>
<div><br>
</div>
<br>
</div>
<div><br>
<blockquote type=3D"cite">
<div>On Sep 17, 2025, at 3:47=E2=80=AFPM, Hank Leach &lt;<a href=3D"mailto:=
[email-masked]" target=3D"_blank">[email-masked]</a>&gt; wrote:</=
div>
<br>
<div>
<div>I would like to comment about the position of the temperature &quot;se=
nsor&quot; found in the Healey. All of them-100s and 3000s measure the wate=
r/antifreeze temperature
<span style=3D"text-decoration:underline">flowing thru the radiator</span>.=
 That is not necessarily the temperature of the engine itself. Using a heat=
 detector gun (Harbor Freight) you can actually see the head, block and exh=
aust readings and they will be different
 than the degrees indicated which has been read in the water flowing and tr=
ansferred down a long capillary tube to an analog gauge.</div>
<div>=C2=A0</div>
<div>In contrast, most older American cars, and incidentally the Jensen-Hea=
ley, measure the temperature of the manifold, or the block, by electronic s=
ensor to an analog gauge.</div>
<div>=C2=A0</div>
<div>I&#39;m sure todays&#39; vehicles have more accurate measurements, but=
 they don&#39;t tell us what that actual number is unless an icon illuminat=
es on the dash indicating a problem with temperature. I guess that ancient =
type of measurement is what gives the Healey
 its charm. Be it Fahrenheit or Centigrade. Hank</div>
<div><br>
-------------------- <br>
<br>
From: &quot;Harold Manifold&quot; &lt;<a href=3D"mailto:[email-masked]"=
 target=3D"_blank">[email-masked]</a>&gt; <br>
To: &quot;Richard Mayor&quot; &lt;<a href=3D"mailto:[email-masked]" =
target=3D"_blank">[email-masked]</a>&gt; <br>
Cc: &quot;Richard Antal&quot; &lt;<a href=3D"mailto:[email-masked]" ta=
rget=3D"_blank">[email-masked]</a>&gt;, &quot;Healeys&quot; &lt;<a hre=
f=3D"mailto:[email-masked]" target=3D"_blank">[email-masked]=
t</a>&gt; <br>
Sent: September 17, 2025 at 3:05 PM PDT <br>
Subject: Re: [Healeys] radiator thermostat </div>
<div>
<div>Hi All,</div>
<div>=C2=A0</div>
<div>Thermostats always generate interesting discussions.</div>
<div>=C2=A0</div>
<div>I use a 180-degree thermostat in my car. However, what&#39;s equally i=
mportant is how effectively the thermostat regulates the coolant temperatur=
e. A thermostat that is fully closed or fully open is no longer actively co=
ntrolling the temperature. The normal
 operating range is typically the opening temperature plus 20 degrees. For =
example, a 165-degree thermostat should maintain the temperature between 16=
5 and 185 degrees, while a 180-degree thermostat should keep it between 180=
 and 200 degrees.</div>
<div>=C2=A0</div>
<div>If your current thermostat maintains the coolant temperature within it=
s specified range under normal driving conditions, then it&#39;s the correc=
t one for your needs.</div>
<div>=C2=A0</div>
<div>Harold</div>
</div>
<div>=C2=A0</div>
<div>
<div>On Wed, Sep 17, 2025 at 1:36=E2=80=AFPM Richard Mayor &lt;<a href=3D"m=
ailto:[email-masked]" target=3D"_blank">[email-masked]</a>&gt=
; wrote:</div>
<blockquote style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204=
,204,204);padding-left:1ex">
<div>165 is too cold for good running.=C2=A0 Our engines run better in the =
180 to 190 range. =C2=A0
<div>=C2=A0</div>
<div><br>
<div>
<div>Sent from my iPad</div>
<div><br>
<blockquote>On Sep 17, 2025, at 12:13=E2=80=AFPM, Robert Markovich via Heal=
eys &lt;<a href=3D"mailto:[email-masked]" rel=3D"noopener" target=
=3D"_blank">[email-masked]</a>&gt; wrote:<br>
<br>
</blockquote>
</div>
<blockquote>
<div>165 is the one I use<br>
<br>
<br>
<div><a href=3D"https://aolapp.onelink.me/eG2g?pid=3DNativePlacement&amp;c=
=3DUS_Acquisition_YMktg_320_EmailSignature_AttributionDL&amp;af_sub1=3DAcqu=
isition&amp;af_sub2=3DUS_YMktg&amp;af_sub3=3D&amp;af_sub4=3D100002473&amp;a=
f_sub5=3DSentFromNewAOLApp__Interstitial_&amp;af_ios_store_cpp=3Dce85ce34-a=
d0f-4811-a92b-a172743b064e&amp;af_android_url=3Dhttps%3A%2F%2Fplay.google.c=
om%2Fstore%2Fapps%2Fdetails%3Fid%3Dcom.aol.mobile.aolapp%26listing%3Demail_=
signature_attribution" rel=3D"noopener" style=3D"font-size:12px" target=3D"=
_blank">Sent
 from the all new AOL app for iOS</a></div>
<br>
<p style=3D"font-size:15px;color:rgb(132,115,255);padding-top:15px;margin-t=
op:0px">
On Wednesday, September 17, 2025, 2:50 PM, Richard Antal via Healeys &lt;<a=
 href=3D"mailto:[email-masked]" rel=3D"noopener" target=3D"_blank">=
[email-masked]</a>&gt; wrote:</p>
<blockquote>
<div id=3D"m_-137577282233278094m_-1449391584320249839x_m_38623314385482453=
16yiv6324880639">
<div>
<div style=3D"font-family:&quot;Helvetica Neue&quot;,Helvetica,Arial,sans-s=
erif;font-size:13px">
<div>Gents,</div>
<div>=C2=A0 =C2=A0 =C2=A0What is the desired coolant temperature for optima=
l engine performance? I&#39;ve searched the tech articles and can find noth=
ing that specifically answers that question. This summer my BJ8 seemed to r=
un fine with a 160 thermostat which, according to the
 gauge which I&#39;ve checked and found to be accurate, kept the coolant at=
 around 165. Thanks to all who respond.</div>
<div>rich antal</div>
</div>
</div>
</div>
_______________________________________________<br>
r" target=3D"_blank">
<br>
Archive: <a href=3D"http://www.team.net/pipermail/healeys" rel=3D"noopener"=
 target=3D"_blank">
http://www.team.net/pipermail/healeys</a> <a href=3D"http://autox.team.net/=
archive/healeys" rel=3D"noopener" target=3D"_blank">
http://autox.team.net/archive/healeys</a><br>
<br>
<a href=3D"mailto:[email-masked]" rel=3D"noopener" target=3D"_blank=
">[email-masked]</a><br>
<a href=3D"http://autox.team.net/mailman/listinfo/healeys" rel=3D"noopener"=
 target=3D"_blank">http://autox.team.net/mailman/listinfo/healeys</a><br>
<br>
s/[email-masked]" rel=3D"noopener" target=3D"_blank">
http://autox.team.net/mailman/options/healeys/[email-masked]</a><br>
<br>
</blockquote>
_______________________________________________<br>
r" target=3D"_blank">
<br>
Archive: <a href=3D"http://www.team.net/pipermail/healeys" rel=3D"noopener"=
 target=3D"_blank">
http://www.team.net/pipermail/healeys</a> <a href=3D"http://autox.team.net/=
archive/healeys" rel=3D"noopener" target=3D"_blank">
http://autox.team.net/archive/healeys</a><br>
<br>
<a href=3D"mailto:[email-masked]" rel=3D"noopener" target=3D"_blank=
">[email-masked]</a><br>
<a href=3D"http://autox.team.net/mailman/listinfo/healeys" rel=3D"noopener"=
 target=3D"_blank">http://autox.team.net/mailman/listinfo/healeys</a><br>
<br>
s/[email-masked]" rel=3D"noopener" target=3D"_blank">
http://autox.team.net/mailman/options/healeys/[email-masked]</a><br>
<br>
</div>
</blockquote>
</div>
</div>
</div>
_______________________________________________<br>
r" target=3D"_blank">
<br>
Archive: <a href=3D"http://www.team.net/pipermail/healeys" rel=3D"noopener"=
 target=3D"_blank">
http://www.team.net/pipermail/healeys</a> <a href=3D"http://autox.team.net/=
archive/healeys" rel=3D"noopener" target=3D"_blank">
http://autox.team.net/archive/healeys</a><br>
<br>
<a href=3D"mailto:[email-masked]" rel=3D"noopener" target=3D"_blank=
">[email-masked]</a><br>
<a href=3D"http://autox.team.net/mailman/listinfo/healeys" rel=3D"noopener"=
 target=3D"_blank">http://autox.team.net/mailman/listinfo/healeys</a><br>
<br>
s/[email-masked]" rel=3D"noopener" target=3D"_blank">
http://autox.team.net/mailman/options/healeys/[email-masked]</a><br>
<br>
</blockquote>
</div>
<div>=C2=A0</div>
</div>
</blockquote>
</div>
<br>
</div>
</div>
</div>
</div>

_______________________________________________<br>
rer" target=3D"_blank">http://www.team.net/donate.html</a><br>
<br>
Archive: <a href=3D"http://www.team.net/pipermail/healeys" rel=3D"noreferre=
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ttp://autox.team.net/archive/healeys" rel=3D"noreferrer" target=3D"_blank">=
http://autox.team.net/archive/healeys</a><br>
<br>
<a href=3D"mailto:[email-masked]" target=3D"_blank">[email-masked]=
eam.net</a><br>
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r" target=3D"_blank">http://autox.team.net/mailman/listinfo/healeys</a><br>
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s/[email-masked]" rel=3D"noreferrer" target=3D"_blank">http://autox.tea=
m.net/mailman/options/healeys/[email-masked]</a><br>
<br>
</blockquote></div>

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[email-masked]

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From: Michael Salter <[email-masked]>
Date: Thu, 18 Sep 2025 10:51:40 +0000

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[email-masked]

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From: Alan Seigrist <[email-masked]>
Date: Thu, 18 Sep 2025 10:23:29 -0400

--===============2800423967538945534==

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Incidentally, there's no point using a sleeved thermostat with the 100
motor, but may have benefit for the 3000 motor.  Just beware that some
modern sleeved thermostats operate the sleeve in reverse to the old bellows
thermostats, so they may not particularly make much difference.

For my BJ8, 165 was ideal for all year running in Northern California.  had
80k miles on the car with no wear on the motor.

The main benefit with the sleeved thermostat is that it has a wider opening
for moving water.  Wahler thermostats have a nice wide opening too, if you
can find them.

Best,

Alan

On Thu, Sep 18, 2025 at 7:07=E2=80=AFAM Michael Salter <michael.salter@gmai=
l.com>
wrote:

> BTW hot coolant enters the rad. from the top.
> Yes, correct. I guess my dementia is progressing.
>
>
> *From:* Roger Grace <[email-masked]>
> *Sent:* Wednesday, September 17, 2025 10:53:57 PM
> *To:* Michael Salter <[email-masked]>
> *Cc:* Healeys <[email-masked]>
> hose ? Have calibrated this sensor with a mercury stick thermometer and i=
t
> On Wed, Sep 17, 2025 at 7:32=E2=80=AFPM Michael Salter <michael.salter@gm=
ail.com>
r
 for
t
h
s
s
un
s
,
or
t
e
com>
d
> http://autox.team.net/mailman/options/healeys/[email-masked]
>
>

--0000000000009cc989063f14191e
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">Incidentally, there&#39;s no point using a sleeved thermos=
tat with the 100 motor, but may have benefit for the 3000 motor.=C2=A0 Just=
 beware that some modern sleeved thermostats operate the sleeve in reverse =
to the old bellows thermostats, so they may not particularly make much diff=
erence.<br><br>For my BJ8, 165 was ideal for all year running in Northern C=
alifornia.=C2=A0 had 80k miles on the car with no wear on the motor.<br><br=
>The main benefit with the sleeved thermostat is that it has a wider openin=
g for moving water.=C2=A0 Wahler thermostats have a nice wide opening too, =
if you can find them.<br><div><br></div><div>Best,<br><br>Alan<br><div><br>=
</div><div><br></div></div></div><br><div class=3D"gmail_quote gmail_quote_=
container"><div dir=3D"ltr" class=3D"gmail_attr">On Thu, Sep 18, 2025 at 7:=
07=E2=80=AFAM Michael Salter &lt;<a href=3D"mailto:[email-masked]=
">[email-masked]</a>&gt; wrote:<br></div><blockquote class=3D"gma=
il_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,2=
04,204);padding-left:1ex">

<div>
<div dir=3D"auto" style=3D"font-family:Aptos;font-size:13.5pt;color:rgb(33,=
33,33)">
BTW hot coolant enters the rad. from the top.</div>
<div dir=3D"auto" style=3D"font-family:Aptos;font-size:13.5pt;color:rgb(33,=
33,33)">
Yes, correct. I guess my dementia is progressing.=C2=A0</div>
<div id=3D"m_-8699734984474973348ms-outlook-mobile-body-separator-line" sty=
le=3D"font-family:Aptos,Aptos_MSFontService,-apple-system,Roboto,Arial,Helv=
etica,sans-serif;font-size:12pt" dir=3D"auto">
<div dir=3D"auto" style=3D"font-family:Aptos,Aptos_MSFontService,-apple-sys=
tem,Roboto,Arial,Helvetica,sans-serif;font-size:12pt">
<br>
</div>
</div>
<div style=3D"font-family:Aptos,Aptos_MSFontService,-apple-system,Roboto,Ar=
ial,Helvetica,sans-serif;font-size:12pt" id=3D"m_-8699734984474973348ms-out=
look-mobile-signature" dir=3D"auto">
<div dir=3D"auto" style=3D"font-family:Aptos,Aptos_MSFontService,-apple-sys=
tem,Roboto,Arial,Helvetica,sans-serif;font-size:12pt">
<br>
</div>
</div>
<hr style=3D"display:inline-block;width:98%">
<div id=3D"m_-8699734984474973348divRplyFwdMsg" dir=3D"ltr"><font face=3D"C=
alibri, sans-serif" style=3D"font-size:11pt" color=3D"#000000"><b>From:</b>=
 Roger Grace &lt;<a href=3D"mailto:[email-masked]" target=3D"_blank">ro=
[email-masked]</a>&gt;<br>
<b>Sent:</b> Wednesday, September 17, 2025 10:53:57 PM<br>
<b>To:</b> Michael Salter &lt;<a href=3D"mailto:[email-masked]" t=
arget=3D"_blank">[email-masked]</a>&gt;<br>
<b>Cc:</b> Healeys &lt;<a href=3D"mailto:[email-masked]" target=3D"=
_blank">[email-masked]</a>&gt;<br>
<b>Subject:</b> Re: [Healeys] radiator thermostat</font>
<div>=C2=A0</div>
</div>
<div>
<div dir=3D"ltr">
<div style=3D"font-size:large">On my BJ8 I measure the coolant temp in the =
top hose.This is generally about 10F less than the Smiths. I attribute this=
 to the temp loss in the hose ? Have calibrated this sensor with a mercury=
=C2=A0stick thermometer
 and it is within a few degrees=C2=A0on the Smiths.=C2=A0 BTW hot coolant e=
nters the rad. from the top.</div>
<div style=3D"font-size:large">rg</div>
<div style=3D"font-size:large"><br>
</div>
</div>
<br>
<div>
<div dir=3D"ltr">On Wed, Sep 17, 2025 at 7:32=E2=80=AFPM Michael Salter &lt=
;<a href=3D"mailto:[email-masked]" target=3D"_blank">michael.salt=
[email-masked]</a>&gt; wrote:<br>
</div>
<blockquote style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204=
,204,204);padding-left:1ex">
<div>
<div dir=3D"auto" style=3D"font-family:Aptos,Aptos_MSFontService,-apple-sys=
tem,Roboto,Arial,Helvetica,sans-serif;font-size:12pt">
Something else to remember is that the temperature bulb is located either i=
n the top tank of the radiator 100&#39;s &amp; 100/6 or directly below the =
thermostat housing where the coolant which has passed through the radiator =
enters the engine. This means that the coolant
 in the engine and exiting from the engine is probably significantly hotter=
.=C2=A0</div>
<div dir=3D"auto" style=3D"font-family:Aptos,Aptos_MSFontService,-apple-sys=
tem,Roboto,Arial,Helvetica,sans-serif;font-size:12pt">
Has anyone actually measured the temperature of the coolant as it enters th=
e radiator at the bottom?</div>
<div dir=3D"auto" style=3D"font-family:Aptos,Aptos_MSFontService,-apple-sys=
tem,Roboto,Arial,Helvetica,sans-serif;font-size:12pt">
It could well be that magic 185=C2=B0F that an engine apparently requires f=
or best operation occurs at a significantly lower indicated temperature.=C2=
=A0</div>
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tem,Roboto,Arial,Helvetica,sans-serif;font-size:12pt">
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<div dir=3D"auto" style=3D"font-family:Aptos,Aptos_MSFontService,-apple-sys=
tem,Roboto,Arial,Helvetica,sans-serif;font-size:12pt">
M</div>
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tem,Roboto,Arial,Helvetica,sans-serif;font-size:12pt">
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</div>
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839ms-outlook-mobile-body-separator-line" dir=3D"auto" style=3D"font-family=
:Aptos,Aptos_MSFontService,-apple-system,Roboto,Arial,Helvetica,sans-serif;=
font-size:12pt">
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tem,Roboto,Arial,Helvetica,sans-serif;font-size:12pt">
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</div>
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<div dir=3D"auto" id=3D"m_-8699734984474973348x_m_-137577282233278094m_-144=
9391584320249839ms-outlook-mobile-signature" style=3D"font-family:Aptos,Apt=
os_MSFontService,-apple-system,Roboto,Arial,Helvetica,sans-serif;font-size:=
12pt">
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tem,Roboto,Arial,Helvetica,sans-serif;font-size:12pt">
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</div>
</div>
<hr style=3D"display:inline-block;width:98%">
<div id=3D"m_-8699734984474973348x_m_-137577282233278094m_-1449391584320249=
839divRplyFwdMsg" dir=3D"ltr"><font face=3D"Calibri, sans-serif" color=3D"#=
000000" style=3D"font-size:11pt"><b>From:</b> Healeys &lt;<a href=3D"mailto=
:[email-masked]" target=3D"_blank">[email-masked]=
am.net</a>&gt;
 on behalf of richard mayor &lt;<a href=3D"mailto:[email-masked]" ta=
rget=3D"_blank">[email-masked]</a>&gt;<br>
<b>Sent:</b> Wednesday, September 17, 2025 7:09:14 PM<br>
<b>To:</b> Leach Hank &lt;<a href=3D"mailto:[email-masked]" target=3D"=
_blank">[email-masked]</a>&gt;<br>
<b>Cc:</b> Richard Antal &lt;<a href=3D"mailto:[email-masked]" target=
=3D"_blank">[email-masked]</a>&gt;; Healeys &lt;<a href=3D"mailto:heal=
[email-masked]" target=3D"_blank">[email-masked]</a>&gt;<br>
<b>Subject:</b> Re: [Healeys] radiator thermostat</font>
<div>=C2=A0</div>
</div>
<div>Hank makes a very good point about where to measure the water temp.=C2=
=A0 And to get an infrared temperature sensor.=C2=A0 I recently fired up a =
fresh V8 engine to break in the cam.=C2=A0 I had also bought a new water te=
mp gauge with sensor.=C2=A0 The new =C2=A0sensor was screwed
 into a port on the cylinder head.=C2=A0 As we were running the engine I sa=
w the temp climb and approach 220 degrees but fortunately I had my infrared=
 sensor.=C2=A0 The water temp was actually quite lower and I was able to ta=
ke readings from various places in the system.=C2=A0
 If I had relied solely on the gauge I would have freaked out and probably =
shut the engine down.
<div><br>
</div>
<div>Just another example of the garbage that is being sold in the parts st=
ores these days. =C2=A0=C2=A0
<div>=C2=A0<br id=3D"m_-8699734984474973348x_m_-137577282233278094m_-144939=
1584320249839x_lineBreakAtBeginningOfMessage">
<div>
<div>Richard Mayor</div>
<div><a href=3D"mailto:[email-masked]" target=3D"_blank">boyracer466=
@gmail.com</a></div>
<div><br>
</div>
<br>
</div>
<div><br>
<blockquote type=3D"cite">
<div>On Sep 17, 2025, at 3:47=E2=80=AFPM, Hank Leach &lt;<a href=3D"mailto:=
[email-masked]" target=3D"_blank">[email-masked]</a>&gt; wrote:</=
div>
<br>
<div>
<div>I would like to comment about the position of the temperature &quot;se=
nsor&quot; found in the Healey. All of them-100s and 3000s measure the wate=
r/antifreeze temperature
<span style=3D"text-decoration:underline">flowing thru the radiator</span>.=
 That is not necessarily the temperature of the engine itself. Using a heat=
 detector gun (Harbor Freight) you can actually see the head, block and exh=
aust readings and they will be different
 than the degrees indicated which has been read in the water flowing and tr=
ansferred down a long capillary tube to an analog gauge.</div>
<div>=C2=A0</div>
<div>In contrast, most older American cars, and incidentally the Jensen-Hea=
ley, measure the temperature of the manifold, or the block, by electronic s=
ensor to an analog gauge.</div>
<div>=C2=A0</div>
<div>I&#39;m sure todays&#39; vehicles have more accurate measurements, but=
 they don&#39;t tell us what that actual number is unless an icon illuminat=
es on the dash indicating a problem with temperature. I guess that ancient =
type of measurement is what gives the Healey
 its charm. Be it Fahrenheit or Centigrade. Hank</div>
<div><br>
-------------------- <br>
<br>
From: &quot;Harold Manifold&quot; &lt;<a href=3D"mailto:[email-masked]"=
 target=3D"_blank">[email-masked]</a>&gt;
<br>
To: &quot;Richard Mayor&quot; &lt;<a href=3D"mailto:[email-masked]" =
target=3D"_blank">[email-masked]</a>&gt;
<br>
Cc: &quot;Richard Antal&quot; &lt;<a href=3D"mailto:[email-masked]" ta=
rget=3D"_blank">[email-masked]</a>&gt;, &quot;Healeys&quot; &lt;<a hre=
f=3D"mailto:[email-masked]" target=3D"_blank">[email-masked]=
t</a>&gt;
<br>
Sent: September 17, 2025 at 3:05 PM PDT <br>
Subject: Re: [Healeys] radiator thermostat </div>
<div>
<div>Hi All,</div>
<div>=C2=A0</div>
<div>Thermostats always generate interesting discussions.</div>
<div>=C2=A0</div>
<div>I use a 180-degree thermostat in my car. However, what&#39;s equally i=
mportant is how effectively the thermostat regulates the coolant temperatur=
e. A thermostat that is fully closed or fully open is no longer actively co=
ntrolling the temperature. The normal
 operating range is typically the opening temperature plus 20 degrees. For =
example, a 165-degree thermostat should maintain the temperature between 16=
5 and 185 degrees, while a 180-degree thermostat should keep it between 180=
 and 200 degrees.</div>
<div>=C2=A0</div>
<div>If your current thermostat maintains the coolant temperature within it=
s specified range under normal driving conditions, then it&#39;s the correc=
t one for your needs.</div>
<div>=C2=A0</div>
<div>Harold</div>
</div>
<div>=C2=A0</div>
<div>
<div>On Wed, Sep 17, 2025 at 1:36=E2=80=AFPM Richard Mayor &lt;<a href=3D"m=
ailto:[email-masked]" target=3D"_blank">[email-masked]</a>&gt=
; wrote:</div>
<blockquote style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204=
,204,204);padding-left:1ex">
<div>165 is too cold for good running.=C2=A0 Our engines run better in the =
180 to 190 range. =C2=A0
<div>=C2=A0</div>
<div><br>
<div>
<div>Sent from my iPad</div>
<div><br>
<blockquote>On Sep 17, 2025, at 12:13=E2=80=AFPM, Robert Markovich via Heal=
eys &lt;<a href=3D"mailto:[email-masked]" rel=3D"noopener" target=
=3D"_blank">[email-masked]</a>&gt; wrote:<br>
<br>
</blockquote>
</div>
<blockquote>
<div>165 is the one I use<br>
<br>
<br>
<div><a href=3D"https://aolapp.onelink.me/eG2g?pid=3DNativePlacement&amp;c=
=3DUS_Acquisition_YMktg_320_EmailSignature_AttributionDL&amp;af_sub1=3DAcqu=
isition&amp;af_sub2=3DUS_YMktg&amp;af_sub3=3D&amp;af_sub4=3D100002473&amp;a=
f_sub5=3DSentFromNewAOLApp__Interstitial_&amp;af_ios_store_cpp=3Dce85ce34-a=
d0f-4811-a92b-a172743b064e&amp;af_android_url=3Dhttps%3A%2F%2Fplay.google.c=
om%2Fstore%2Fapps%2Fdetails%3Fid%3Dcom.aol.mobile.aolapp%26listing%3Demail_=
signature_attribution" rel=3D"noopener" style=3D"font-size:12px" target=3D"=
_blank">Sent
 from the all new AOL app for iOS</a></div>
<br>
<p style=3D"font-size:15px;color:rgb(132,115,255);padding-top:15px;margin-t=
op:0px">
On Wednesday, September 17, 2025, 2:50 PM, Richard Antal via Healeys &lt;<a=
 href=3D"mailto:[email-masked]" rel=3D"noopener" target=3D"_blank">=
[email-masked]</a>&gt; wrote:</p>
<blockquote>
<div id=3D"m_-8699734984474973348x_m_-137577282233278094m_-1449391584320249=
839x_m_3862331438548245316yiv6324880639">
<div>
<div style=3D"font-family:&quot;Helvetica Neue&quot;,Helvetica,Arial,sans-s=
erif;font-size:13px">
<div>Gents,</div>
<div>=C2=A0 =C2=A0 =C2=A0What is the desired coolant temperature for optima=
l engine performance? I&#39;ve searched the tech articles and can find noth=
ing that specifically answers that question. This summer my BJ8 seemed to r=
un fine with a 160 thermostat which, according to the
 gauge which I&#39;ve checked and found to be accurate, kept the coolant at=
 around 165. Thanks to all who respond.</div>
<div>rich antal</div>
</div>
</div>
</div>
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Archive: <a href=3D"http://www.team.net/pipermail/healeys" rel=3D"noopener"=
 target=3D"_blank">
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archive/healeys" rel=3D"noopener" target=3D"_blank">
http://autox.team.net/archive/healeys</a><br>
<br>
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">[email-masked]</a><br>
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 target=3D"_blank">http://autox.team.net/mailman/listinfo/healeys</a><br>
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</blockquote>
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 target=3D"_blank">
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<br>
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">[email-masked]</a><br>
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 target=3D"_blank">http://autox.team.net/mailman/listinfo/healeys</a><br>
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s/[email-masked]" rel=3D"noopener" target=3D"_blank">
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</blockquote>
</div>
</div>
</div>
_______________________________________________<br>
r" target=3D"_blank">
<br>
Archive: <a href=3D"http://www.team.net/pipermail/healeys" rel=3D"noopener"=
 target=3D"_blank">
http://www.team.net/pipermail/healeys</a> <a href=3D"http://autox.team.net/=
archive/healeys" rel=3D"noopener" target=3D"_blank">
http://autox.team.net/archive/healeys</a><br>
<br>
<a href=3D"mailto:[email-masked]" rel=3D"noopener" target=3D"_blank=
">[email-masked]</a><br>
<a href=3D"http://autox.team.net/mailman/listinfo/healeys" rel=3D"noopener"=
 target=3D"_blank">http://autox.team.net/mailman/listinfo/healeys</a><br>
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s/[email-masked]" rel=3D"noopener" target=3D"_blank">
http://autox.team.net/mailman/options/healeys/[email-masked]</a><br>
<br>
</blockquote>
</div>
<div>=C2=A0</div>
</div>
</blockquote>
</div>
<br>
</div>
</div>
</div>
</div>
_______________________________________________<br>
rer" target=3D"_blank">
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Archive: <a href=3D"http://www.team.net/pipermail/healeys" rel=3D"noreferre=
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s/[email-masked]" rel=3D"noreferrer" target=3D"_blank">http://autox.t=
eam.net/mailman/options/healeys/[email-masked]</a><br>
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</blockquote></div>

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