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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:healeys-bounces@autox.team.net] 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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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. 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> </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 =
</span><span style=3D'color:#002060'><o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#002060'><o:p> </o:p></span></p></div><p =
class=3DMsoNormal><span style=3D'font-family:"Comic Sans =
MS";color:#002060'><o:p> </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:healeys-bounces@autox.team.net] <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> </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’t the usual one ....”my car always =
runs hot; what’s the cure?” 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"'> =
</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"'> =
</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"'> =
</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"'> =
</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’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"'> =
</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"'> =
</span></span></span><![endif]><span lang=3DEN-GB>There was plenty of =
coolant in the rad and it didn’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"'> =
</span></span></span><![endif]><span lang=3DEN-GB>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.<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"'> =
</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> </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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