Subject: Re: [Healeys] Overheating query

From: "BJ8Healeys" <[email-masked]>
Date: Wed, 7 Sep 2016 16:40:53 -0400

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Water pumps usually do not fail suddenly, but get noisy and leak out the
weep hole in the bottom of the pump housing when they begin to fail.  I
would suspect the thermostat failed closed, preventing the coolant from
reaching the radiator.

Steve Byers

HBJ8L/36666

BJ8 Registry

AHCA Delegate at Large

Havelock, NC  

From: Healeys [mailto:[email-masked]] On Behalf Of Simon
Lachlan
Sent: Wednesday, September 07, 2016 12:20 PM
To: 'Healey List'
Subject: [Healeys] Overheating query

Hi,

This isn't the usual one ...."my car always runs hot; what's the cure?" etc

No, this is my very own original.....

Background:-

1)      The car, MkII BT7, has never had overheating issues before today.

2)      It has a new, 12 month, modern design radiator.

3)      It has the correct type(original design) Smiths sleeved thermostat.
(5 years old +/-).

4)      The waterpump was in the car when I bought the car +/- 25 yrs ago.

Today's symptoms:- 

1)      I took it out to the pub today and, on returning, I noticed that
there was HEAT and then that the gauge was off the scale.

2)      There was plenty of coolant in the rad and it didn't seem overly
hot.

3)      I didn't have much time, but I got the impression that the rad was
not blowing steam or making more of a "cooling-off noise" than usual.

4)      I also got the impression that the engine was hotter than the rad.

Is this typical of a failed water pump?

How can one differentiate between thermostat issues and waterpump issues?

Any ideas?

Simon

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</o:shapelayout></xml><![endif]--></head><body lang=3DEN-US link=3Dblue =
vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'font-family:"Comic Sans MS";color:#002060'>Water pumps usually =
do not fail suddenly, but get noisy and leak out the weep hole in the =
bottom of the pump housing when they begin to fail.&nbsp; I would =
suspect the thermostat failed closed, preventing the coolant from =
reaching the radiator.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-family:"Comic Sans =
MS";color:#002060'><o:p>&nbsp;</o:p></span></p><div><p =
class=3DMsoNormal><span style=3D'font-family:"Comic Sans =
MS";color:#002060'>Steve Byers</span><span =
style=3D'color:#002060'><o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-family:"Comic Sans =
MS";color:#002060'>HBJ8L/36666</span><span =
style=3D'color:#002060'><o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-family:"Comic Sans MS";color:#002060'>BJ8 =
Registry</span><span style=3D'color:#002060'><o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'font-family:"Comic Sans =
MS";color:#002060'>AHCA Delegate at Large</span><span =
style=3D'color:#002060'><o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-family:"Comic Sans MS";color:#002060'>Havelock, NC&nbsp; =
</span><span style=3D'color:#002060'><o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#002060'><o:p>&nbsp;</o:p></span></p></div><p =
class=3DMsoNormal><span style=3D'font-family:"Comic Sans =
MS";color:#002060'><o:p>&nbsp;</o:p></span></p><div><div =
style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span>=
</b><span style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'> =
Healeys [mailto:[email-masked]] <b>On Behalf Of =
</b>Simon Lachlan<br><b>Sent:</b> Wednesday, September 07, 2016 12:20 =
PM<br><b>To:</b> 'Healey List'<br><b>Subject:</b> [Healeys] Overheating =
query<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal><span =
lang=3DEN-GB>Hi,<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-GB>This isn&#8217;t the usual one ....&#8221;my car always =
runs hot; what&#8217;s the cure?&#8221; etc<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-GB>No, this is my very own =
original.....<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-GB>Background:-<o:p></o:p></span></p><p =
class=3DMsoListParagraph style=3D'text-indent:-.25in;mso-list:l1 level1 =
lfo2'><![if !supportLists]><span lang=3DEN-GB><span =
style=3D'mso-list:Ignore'>1)<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></span></span><![endif]><span lang=3DEN-GB>The car, MkII BT7, has =
never had overheating issues before today.<o:p></o:p></span></p><p =
class=3DMsoListParagraph style=3D'text-indent:-.25in;mso-list:l1 level1 =
lfo2'><![if !supportLists]><span lang=3DEN-GB><span =
style=3D'mso-list:Ignore'>2)<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></span></span><![endif]><span lang=3DEN-GB>It has a new, 12 =
month, modern design radiator.<o:p></o:p></span></p><p =
class=3DMsoListParagraph style=3D'text-indent:-.25in;mso-list:l1 level1 =
lfo2'><![if !supportLists]><span lang=3DEN-GB><span =
style=3D'mso-list:Ignore'>3)<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></span></span><![endif]><span lang=3DEN-GB>It has the correct =
type(original design) Smiths sleeved thermostat. (5 years old =
+/-).<o:p></o:p></span></p><p class=3DMsoListParagraph =
style=3D'text-indent:-.25in;mso-list:l1 level1 lfo2'><![if =
!supportLists]><span lang=3DEN-GB><span =
style=3D'mso-list:Ignore'>4)<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></span></span><![endif]><span lang=3DEN-GB>The waterpump was in =
the car when I bought the car +/- 25 yrs ago.<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-GB>Today&#8217;s symptoms:- =
<o:p></o:p></span></p><p class=3DMsoListParagraph =
style=3D'text-indent:-.25in;mso-list:l0 level1 lfo4'><![if =
!supportLists]><span lang=3DEN-GB><span =
style=3D'mso-list:Ignore'>1)<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></span></span><![endif]><span lang=3DEN-GB>I took it out to the =
pub today and, on returning, I noticed that there was HEAT and then that =
the gauge was off the scale.<o:p></o:p></span></p><p =
class=3DMsoListParagraph style=3D'text-indent:-.25in;mso-list:l0 level1 =
lfo4'><![if !supportLists]><span lang=3DEN-GB><span =
style=3D'mso-list:Ignore'>2)<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></span></span><![endif]><span lang=3DEN-GB>There was plenty of =
coolant in the rad and it didn&#8217;t seem overly =
hot.<o:p></o:p></span></p><p class=3DMsoListParagraph =
style=3D'text-indent:-.25in;mso-list:l0 level1 lfo4'><![if =
!supportLists]><span lang=3DEN-GB><span =
style=3D'mso-list:Ignore'>3)<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></span></span><![endif]><span lang=3DEN-GB>I didn&#8217;t have =
much time, but I got the impression that the rad was not blowing steam =
or making more of a &#8220;cooling-off noise&#8221; than =
usual.<o:p></o:p></span></p><p class=3DMsoListParagraph =
style=3D'text-indent:-.25in;mso-list:l0 level1 lfo4'><![if =
!supportLists]><span lang=3DEN-GB><span =
style=3D'mso-list:Ignore'>4)<span style=3D'font:7.0pt "Times New =
Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></span></span><![endif]><span lang=3DEN-GB>I also got the =
impression that the engine was hotter than the =
rad.<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-GB>Is =
this typical of a failed water pump?<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-GB>How can one differentiate between =
thermostat issues and waterpump issues?<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-GB><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-GB>Any ideas?<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
lang=3DEN-GB>Simon<o:p></o:p></span></p></div></body></html>
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_______________________________________________
Archive: http://www.team.net/archive

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---

From: Oudesluys <[email-masked]>
Date: Wed, 7 Sep 2016 22:54:10 +0200

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I would start checking the operation of the thermostat in a pan of water 
with a proper lab thermometer. Slowly heat up the water and check the 
opening temperature of the thermostat.
If OK remove the water pump and check the vanes, although when the vanes 
disappear the problem should arise gradually, not sudden.
Kees Oudesluijs

Op 7-9-2016 om 18:19 schreef Simon Lachlan:
>
> Hi,
>
> This isn’t the usual one ....”my car always runs hot; what’s the 
> cure?” etc
>
> 1)The car, MkII BT7, has never had overheating issues before today.
>
> 2)It has a new, 12 month, modern design radiator.
>
> 3)It has the correct type(original design) Smiths sleeved thermostat. 
> (5 years old +/-).
>
> 4)The waterpump was in the car when I bought the car +/- 25 yrs ago.
>
> Today’s symptoms:-
>
> 1)I took it out to the pub today and, on returning, I noticed that 
> 2)There was plenty of coolant in the rad and it didn’t seem overly hot.
>
> 3)I didn’t have much time, but I got the impression that the rad was 
> not blowing steam or making more of a “cooling-off noise” than usual.
>
> 4)I also got the impression that the engine was hotter than the rad.
>
> Support Team.Net http://www.team.net/donate.html
> Suggested annual donation  $12.75
> Forums: http://www.team.net/forums
>
> [email-masked]
> Unsubscribe/Manage: http://autox.team.net/mailman/options/healeys/[email-masked]
>

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      http-equiv="Content-Type">
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    <div class="moz-cite-prefix">I would start checking the operation of
      the thermostat in a pan of water with a proper lab thermometer.
      Slowly heat up the water and check the opening temperature of the
      thermostat.<br>
      If OK remove the water pump and check the vanes, although when the
      vanes disappear the problem should arise gradually, not sudden.<br>
      Kees Oudesluijs<br>
      <br>
      <br>
      <br>
      Op 7-9-2016 om 18:19 schreef Simon Lachlan:<br>
    </div>
    <blockquote
      cite="mid:000001d20923$a45bca30$ed135e90$@[email-masked]"
      type="cite">
      <meta http-equiv="Context-Type" content="text/html;
        charset=us-ascii">
      <meta name="Generator" content="Microsoft Word 12 (filtered
        medium)">
      <div class="WordSection1">
        <p class="MsoNormal">Hi,</p>
        <p class="MsoNormal">This isn’t the usual one ....”my car always
          runs hot; what’s the cure?” etc</p>
        <p class="MsoNormal">No, this is my very own original.....</p>
        <p class="MsoNormal">Background:-</p>
        <p class="MsoListParagraph"><span>1)<span>      </span></span>The
          car, MkII BT7, has never had overheating issues before today.</p>
        <p class="MsoListParagraph"><span>2)<span>      </span></span>It
          has a new, 12 month, modern design radiator.</p>
        <p class="MsoListParagraph"><span>3)<span>      </span></span>It
          has the correct type(original design) Smiths sleeved
          thermostat. (5 years old +/-).</p>
        <p class="MsoListParagraph"><span>4)<span>      </span></span>The
          waterpump was in the car when I bought the car +/- 25 yrs ago.</p>
        <p class="MsoNormal">Today’s symptoms:- </p>
        <p class="MsoListParagraph"><span>1)<span>      </span></span>I
          took it out to the pub today and, on returning, I noticed that
          there was HEAT and then that the gauge was off the scale.</p>
        <p class="MsoListParagraph"><span>2)<span>      </span></span>There
          was plenty of coolant in the rad and it didn’t seem overly
          hot.</p>
        <p class="MsoListParagraph"><span>3)<span>      </span></span>I
          didn’t have much time, but I got the impression that the rad
          was not blowing steam or making more of a “cooling-off noise”
          than usual.</p>
        <p class="MsoListParagraph"><span>4)<span>      </span></span>I
          also got the impression that the engine was hotter than the
          rad.</p>
        <p class="MsoNormal">Is this typical of a failed water pump?</p>
        <p class="MsoNormal">How can one differentiate between
          thermostat issues and waterpump issues?</p>
        <p class="MsoNormal"> </p>
        <p class="MsoNormal">Any ideas?</p>
        <p class="MsoNormal">Simon</p>
      </div>
      <br>
      <fieldset class="mimeAttachmentHeader"></fieldset>
      <br>
      <pre wrap="">_______________________________________________
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</pre>
    </blockquote>
    <p><br>
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[email-masked]

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From: Bob Spidell <[email-masked]>
Date: Wed, 7 Sep 2016 21:32:14 +0000 (UTC)

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Sounds like your original design Smiths thermostat failed closed.=20

Bob=20

----- Original Message -----

From: "Simon Lachlan" <[email-masked]>=20
To: "Healey List" <[email-masked]>=20
Sent: Wednesday, September 7, 2016 9:19:41 AM=20
Subject: [Healeys] Overheating query=20

Hi,=20

This isn=E2=80=99t the usual one ....=E2=80=9Dmy car always runs hot; what=
=E2=80=99s the cure?=E2=80=9D etc=20

No, this is my very own original.....=20

Background:-=20

1) The car, MkII BT7, has never had overheating issues before today.=20

2) It has a new, 12 month, modern design radiator.=20

3) It has the correct type(original design) Smiths sleeved thermostat. (5 y=
ears old +/-).=20

4) The waterpump was in the car when I bought the car +/- 25 yrs ago.=20

Today=E2=80=99s symptoms:-=20

1) I took it out to the pub today and, on returning, I noticed that there w=
as HEAT and then that the gauge was off the scale.=20

2) There was plenty of coolant in the rad and it didn=E2=80=99t seem overly=
 hot.=20

3) I didn=E2=80=99t have much time, but I got the impression that the rad w=
as not blowing steam or making more of a =E2=80=9Ccooling-off noise=E2=80=
=9D than usual.=20

4) I also got the impression that the engine was hotter than the rad.=20

Is this typical of a failed water pump?=20

How can one differentiate between thermostat issues and waterpump issues?=
=20

Any ideas?=20

Simon=20

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<html><body><div style=3D"font-family: Arial; font-size: 12pt; color: #0000=
00"><div>Sounds like your original design Smiths thermostat failed closed.<=
br></div><div><br></div><div>Bob</div><div><br></div><hr id=3D"zwchr"><div =
style=3D"color:#000;font-weight:normal;font-style:normal;text-decoration:no=
ne;font-family:Helvetica,Arial,sans-serif;font-size:12pt;"><b>From: </b>"Si=
mon Lachlan" &lt;[email-masked]&gt;<br><b>To: </b>"Healey Lis=
t" &lt;[email-masked]&gt;<br><b>Sent: </b>Wednesday, September 7, 2=
016 9:19:41 AM<br><b>Subject: </b>[Healeys] Overheating query<br><div><br><=
/div><style><!--

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--></style><div class=3D"WordSection1"><p class=3D"MsoNormal">Hi,</p><p cla=
ss=3D"MsoNormal">This isn=E2=80=99t the usual one ....=E2=80=9Dmy car alway=
s runs hot; what=E2=80=99s the cure?=E2=80=9D etc</p><p class=3D"MsoNormal"=
>No, this is my very own original.....</p><p class=3D"MsoNormal">Background=
:-</p><p class=3D"MsoListParagraph" style=3D"text-indent:-18.0pt;mso-list:l=
1 level1 lfo1"><span style=3D"mso-list:Ignore">1)<span style=3D"font:7.0pt =
&quot;Times New Roman&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span>T=
he car, MkII BT7, has never had overheating issues before today.</p><p clas=
s=3D"MsoListParagraph" style=3D"text-indent:-18.0pt;mso-list:l1 level1 lfo1=
"><span style=3D"mso-list:Ignore">2)<span style=3D"font:7.0pt &quot;Times N=
ew Roman&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span>It has a new, =
12 month, modern design radiator.</p><p class=3D"MsoListParagraph" style=3D=
"text-indent:-18.0pt;mso-list:l1 level1 lfo1"><span style=3D"mso-list:Ignor=
e">3)<span style=3D"font:7.0pt &quot;Times New Roman&quot;">&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp; </span></span>It has the correct type(original design) Smit=
hs sleeved thermostat. (5 years old +/-).</p><p class=3D"MsoListParagraph" =
style=3D"text-indent:-18.0pt;mso-list:l1 level1 lfo1"><span style=3D"mso-li=
st:Ignore">4)<span style=3D"font:7.0pt &quot;Times New Roman&quot;">&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp; </span></span>The waterpump was in the car when I b=
ought the car +/- 25 yrs ago.</p><p class=3D"MsoNormal">Today=E2=80=99s sym=
ptoms:- </p><p class=3D"MsoListParagraph" style=3D"text-indent:-18.0pt;mso-=
list:l0 level1 lfo2"><span style=3D"mso-list:Ignore">1)<span style=3D"font:=
7.0pt &quot;Times New Roman&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></=
span>I took it out to the pub today and, on returning, I noticed that there=
 was HEAT and then that the gauge was off the scale.</p><p class=3D"MsoList=
Paragraph" style=3D"text-indent:-18.0pt;mso-list:l0 level1 lfo2"><span styl=
e=3D"mso-list:Ignore">2)<span style=3D"font:7.0pt &quot;Times New Roman&quo=
t;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span>There was plenty of coolan=
t in the rad and it didn=E2=80=99t seem overly hot.</p><p class=3D"MsoListP=
aragraph" style=3D"text-indent:-18.0pt;mso-list:l0 level1 lfo2"><span style=
=3D"mso-list:Ignore">3)<span style=3D"font:7.0pt &quot;Times New Roman&quot=
;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span>I didn=E2=80=99t have much =
time, but I got the impression that the rad was not blowing steam or making=
 more of a =E2=80=9Ccooling-off noise=E2=80=9D than usual.</p><p class=3D"M=
soListParagraph" style=3D"text-indent:-18.0pt;mso-list:l0 level1 lfo2"><spa=
n style=3D"mso-list:Ignore">4)<span style=3D"font:7.0pt &quot;Times New Rom=
an&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span>I also got the impre=
ssion that the engine was hotter than the rad.</p><p class=3D"MsoNormal">Is=
 this typical of a failed water pump?</p><p class=3D"MsoNormal">How can one=
 differentiate between thermostat issues and waterpump issues?</p><p class=
=3D"MsoNormal">&nbsp;</p><p class=3D"MsoNormal">Any ideas?</p><p class=3D"M=
soNormal">Simon</p></div><br><br><div><br></div></div><div><br></div></div>=
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[email-masked]

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From: Oudesluys <[email-masked]>
Date: Thu, 8 Sep 2016 11:27:21 +0200

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One thing that is forgotten about is the temperature gauge. Is this 
indicating correctly?
Kees Oudesluijs

> How can one differentiate between thermostat issues and waterpump issues?

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    <div class="moz-cite-prefix">One thing that is forgotten about is
      the temperature gauge. Is this indicating correctly?<br>

</pre>
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[email-masked]

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