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[Healeys] Overheating query

To: "'Healey List'" <healeys@autox.team.net>
Subject: [Healeys] Overheating query
From: "Simon Lachlan" <simon.lachlan@homecall.co.uk>
Date: Wed, 7 Sep 2016 17:19:41 +0100
Delivered-to: mharc@autox.team.net
Delivered-to: healeys@autox.team.net
Thread-index: AdIJI6NdVHxpwky6RNal7exKZgSdWg==
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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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vlink=3Dpurple><div class=3DWordSection1><p =
class=3DMsoNormal>Hi,<o:p></o:p></p><p class=3DMsoNormal>This =
isn&#8217;t the usual one ....&#8221;my car always runs hot; =
what&#8217;s the cure?&#8221; etc<o:p></o:p></p><p class=3DMsoNormal>No, =
this is my very own original.....<o:p></o:p></p><p =
class=3DMsoNormal>Background:-<o:p></o:p></p><p class=3DMsoListParagraph =
style=3D'text-indent:-18.0pt;mso-list:l1 level1 lfo1'><![if =
!supportLists]><span style=3D'mso-list:Ignore'>1)<span =
style=3D'font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></span><![endif]>The car, MkII BT7, has never had overheating =
issues before today.<o:p></o:p></p><p class=3DMsoListParagraph =
style=3D'text-indent:-18.0pt;mso-list:l1 level1 lfo1'><![if =
!supportLists]><span style=3D'mso-list:Ignore'>2)<span =
style=3D'font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></span><![endif]>It has a new, 12 month, modern design =
radiator.<o:p></o:p></p><p class=3DMsoListParagraph =
style=3D'text-indent:-18.0pt;mso-list:l1 level1 lfo1'><![if =
!supportLists]><span style=3D'mso-list:Ignore'>3)<span =
style=3D'font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></span><![endif]>It has the correct type(original design) Smiths =
sleeved thermostat. (5 years old +/-).<o:p></o:p></p><p =
class=3DMsoListParagraph style=3D'text-indent:-18.0pt;mso-list:l1 level1 =
lfo1'><![if !supportLists]><span style=3D'mso-list:Ignore'>4)<span =
style=3D'font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></span><![endif]>The waterpump was in the car when I bought the =
car +/- 25 yrs ago.<o:p></o:p></p><p class=3DMsoNormal>Today&#8217;s =
symptoms:- <o:p></o:p></p><p class=3DMsoListParagraph =
style=3D'text-indent:-18.0pt;mso-list:l0 level1 lfo2'><![if =
!supportLists]><span style=3D'mso-list:Ignore'>1)<span =
style=3D'font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></span><![endif]>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></p><p class=3DMsoListParagraph =
style=3D'text-indent:-18.0pt;mso-list:l0 level1 lfo2'><![if =
!supportLists]><span style=3D'mso-list:Ignore'>2)<span =
style=3D'font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></span><![endif]>There was plenty of coolant in the rad and it =
didn&#8217;t seem overly hot.<o:p></o:p></p><p class=3DMsoListParagraph =
style=3D'text-indent:-18.0pt;mso-list:l0 level1 lfo2'><![if =
!supportLists]><span style=3D'mso-list:Ignore'>3)<span =
style=3D'font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></span><![endif]>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></p><p =
class=3DMsoListParagraph style=3D'text-indent:-18.0pt;mso-list:l0 level1 =
lfo2'><![if !supportLists]><span style=3D'mso-list:Ignore'>4)<span =
style=3D'font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></span><![endif]>I also got the impression that the engine was =
hotter than the rad.<o:p></o:p></p><p class=3DMsoNormal>Is this typical =
of a failed water pump?<o:p></o:p></p><p class=3DMsoNormal>How can one =
differentiate between thermostat issues and waterpump =
issues?<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>Any ideas?<o:p></o:p></p><p =
class=3DMsoNormal>Simon<o:p></o:p></p></div></body></html>
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