Subject: Re: [Healeys] Overheating query

From: Alan Seigrist <[email-masked]>
Date: Thu, 8 Sep 2016 10:51:40 +0800

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Simon -

If the rad water is hot, it means the thermostat has failed in the closed
position.  Just replace the thermostat.  There should be a tiny bypass
hole, so you will get a teeny tiny amount of cooling, but don't drive the
car until you replace the thermostat.

Cheers,

Alan

On Thu, Sep 8, 2016 at 12:19 AM, Simon Lachlan <[email-masked]=
k
> wrote:

> Hi,
>
> This isn=E2=80=99t the usual one ....=E2=80=9Dmy car always runs hot; wha=
t=E2=80=99s the cure?=E2=80=9D 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=E2=80=99s 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=E2=80=99t seem=
 overly
> hot.
>
> 3)      I didn=E2=80=99t have much time, but I got the impression that th=
e rad
> was not blowing steam or making more of a =E2=80=9Ccooling-off noise=E2=
=80=9D 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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<div dir=3D"ltr">Simon -<div><br></div><div>If the rad water is hot, it mea=
ns the thermostat has failed in the closed position.=C2=A0 Just replace the=
 thermostat.=C2=A0 There should be a tiny bypass hole, so you will get a te=
eny tiny amount of cooling, but don&#39;t drive the car until you replace t=
he thermostat.</div><div><br></div><div>Cheers,</div><div><br></div><div>Al=
an</div></div><div class=3D"gmail_extra"><br><div class=3D"gmail_quote">On =
Thu, Sep 8, 2016 at 12:19 AM, Simon Lachlan <span dir=3D"ltr">&lt;<a href=
=3D"mailto:[email-masked]" target=3D"_blank">simon.lachlan@ho=
mecall.co.uk</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" sty=
le=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div l=
ang=3D"EN-GB" link=3D"blue" vlink=3D"purple"><div><p class=3D"MsoNormal">Hi=
,<u></u><u></u></p><p class=3D"MsoNormal">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<=
u></u><u></u></p><p class=3D"MsoNormal">No, this is my very own original...=
..<u></u><u></u></p><p class=3D"MsoNormal">Background:-<u></u><u></u></p><p=
><u></u><span>1)<span style=3D"font:7.0pt &quot;Times New Roman&quot;">=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span></span><u></u>The car, MkII BT7, has nev=
er had overheating issues before today.<u></u><u></u></p><p><u></u><span>2)=
<span style=3D"font:7.0pt &quot;Times New Roman&quot;">=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0 </span></span><u></u>It has a new, 12 month, modern design rad=
iator.<u></u><u></u></p><p><u></u><span>3)<span style=3D"font:7.0pt &quot;T=
imes New Roman&quot;">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span></span><u></u>I=
t has the correct type(original design) Smiths sleeved thermostat. (5 years=
 old +/-).<u></u><u></u></p><p><u></u><span>4)<span style=3D"font:7.0pt &qu=
ot;Times New Roman&quot;">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span></span><u><=
/u>The waterpump was in the car when I bought the car +/- 25 yrs ago.<u></u=
><u></u></p><p class=3D"MsoNormal">Today=E2=80=99s symptoms:- <u></u><u></u=
></p><p><u></u><span>1)<span style=3D"font:7.0pt &quot;Times New Roman&quot=
;">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span></span><u></u>I took it out to the=
 pub today and, on returning, I noticed that there was HEAT and then that t=
he gauge was off the scale.<u></u><u></u></p><p><u></u><span>2)<span style=
=3D"font:7.0pt &quot;Times New Roman&quot;">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 =
</span></span><u></u>There was plenty of coolant in the rad and it didn=E2=
=80=99t seem overly hot.<u></u><u></u></p><p><u></u><span>3)<span style=3D"=
font:7.0pt &quot;Times New Roman&quot;">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </sp=
an></span><u></u>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.<u></u><u></u></p><p><u></u><span>4)<span style=
=3D"font:7.0pt &quot;Times New Roman&quot;">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 =
</span></span><u></u>I also got the impression that the engine was hotter t=
han the rad.<u></u><u></u></p><p class=3D"MsoNormal">Is this typical of a f=
ailed water pump?<u></u><u></u></p><p class=3D"MsoNormal">How can one diffe=
rentiate between thermostat issues and waterpump issues?<u></u><u></u></p><=
p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p><p class=3D"MsoNormal">Any id=
eas?<span class=3D"HOEnZb"><font color=3D"#888888"><u></u><u></u></font></s=
pan></p><span class=3D"HOEnZb"><font color=3D"#888888"><p class=3D"MsoNorma=
l">Simon<u></u><u></u></p></font></span></div></div><br>___________________=
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<br></blockquote></div><br></div>

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---

From: Alan Seigrist <[email-masked]>
Date: Thu, 8 Sep 2016 16:24:07 +0800

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Sorry meant to say "not hot"

On Thursday, 8 September 2016, Alan Seigrist <[email-masked]> wrote:

> On Thu, Sep 8, 2016 at 12:19 AM, Simon Lachlan <
> [email-masked]
> <javascript:_e(%7B%7D,'cvml',[email-masked]');>> wrote:
>
>> Hi,
>>
>> This isn=E2=80=99t the usual one ....=E2=80=9Dmy car always runs hot; wh=
at=E2=80=99s the cure?=E2=80=9D
>> etc
>> 1)      The car, MkII BT7, has never had overheating issues before today=
.
>> 4)      The waterpump was in the car when I bought the car +/- 25 yrs
>> ago.
>>
>> 2)      There was plenty of coolant in the rad and it didn=E2=80=99t see=
m overly
>> hot.
>>
>> 3)      I didn=E2=80=99t have much time, but I got the impression that t=
he rad
=80=9D than usual.
>>
>> 4)      I also got the impression that the engine was hotter than the
>> rad.
>>
>> How can one differentiate between thermostat issues and waterpump issues=
?
>> <javascript:_e(%7B%7D,'cvml',[email-masked]');>

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Sorry meant to say &quot;not hot&quot;<span></span><br><br>On Thursday, 8 S=
eptember 2016, Alan Seigrist &lt;<a href=3D"mailto:[email-masked]">he=
[email-masked]</a>&gt; wrote:<br><blockquote class=3D"gmail_quote" styl=
e=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div di=
r=3D"ltr">Simon -<div><br></div><div>If the rad water is hot, it means the =
thermostat has failed in the closed position.=C2=A0 Just replace the thermo=
stat.=C2=A0 There should be a tiny bypass hole, so you will get a teeny tin=
y amount of cooling, but don&#39;t drive the car until you replace the ther=
mostat.</div><div><br></div><div>Cheers,</div><div><br></div><div>Alan</div=
></div><div class=3D"gmail_extra"><br><div class=3D"gmail_quote">On Thu, Se=
p 8, 2016 at 12:19 AM, Simon Lachlan <span dir=3D"ltr">&lt;<a href=3D"javas=
cript:_e(%7B%7D,&#39;cvml&#39;,&#39;[email-masked]&#39;);" ta=
rget=3D"_blank">[email-masked]</a>&gt;</span> wrote:<br><bloc=
kquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #cc=
c solid;padding-left:1ex"><div lang=3D"EN-GB" link=3D"blue" vlink=3D"purple=
"><div><p class=3D"MsoNormal">Hi,<u></u><u></u></p><p class=3D"MsoNormal">T=
his isn=E2=80=99t the usual one ....=E2=80=9Dmy car always runs hot; what=
=E2=80=99s the cure?=E2=80=9D etc<u></u><u></u></p><p class=3D"MsoNormal">N=
o, this is my very own original.....<u></u><u></u></p><p class=3D"MsoNormal=
">Background:-<u></u><u></u></p><p><u></u><span>1)<span style=3D"font:7.0pt=
 &quot;Times New Roman&quot;">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span></span>=
<u></u>The car, MkII BT7, has never had overheating issues before today.<u>=
</u><u></u></p><p><u></u><span>2)<span style=3D"font:7.0pt &quot;Times New =
Roman&quot;">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span></span><u></u>It has a n=
ew, 12 month, modern design radiator.<u></u><u></u></p><p><u></u><span>3)<s=
pan style=3D"font:7.0pt &quot;Times New Roman&quot;">=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0 </span></span><u></u>It has the correct type(original design) Smi=
ths sleeved thermostat. (5 years old +/-).<u></u><u></u></p><p><u></u><span=
>4)<span style=3D"font:7.0pt &quot;Times New Roman&quot;">=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0 </span></span><u></u>The waterpump was in the car when I bo=
ught the car +/- 25 yrs ago.<u></u><u></u></p><p class=3D"MsoNormal">Today=
=E2=80=99s symptoms:- <u></u><u></u></p><p><u></u><span>1)<span style=3D"fo=
nt:7.0pt &quot;Times New Roman&quot;">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span=
></span><u></u>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.<u></u><u></u=
></p><p><u></u><span>2)<span style=3D"font:7.0pt &quot;Times New Roman&quot=
;">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span></span><u></u>There was plenty of =
coolant in the rad and it didn=E2=80=99t seem overly hot.<u></u><u></u></p>=
<p><u></u><span>3)<span style=3D"font:7.0pt &quot;Times New Roman&quot;">=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span></span><u></u>I didn=E2=80=99t have m=
uch time, but I got the impression that the rad was not blowing steam or ma=
king more of a =E2=80=9Ccooling-off noise=E2=80=9D than usual.<u></u><u></u=
></p><p><u></u><span>4)<span style=3D"font:7.0pt &quot;Times New Roman&quot=
;">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span></span><u></u>I also got the impre=
ssion that the engine was hotter than the rad.<u></u><u></u></p><p class=3D=
"MsoNormal">Is this typical of a failed water pump?<u></u><u></u></p><p cla=
ss=3D"MsoNormal">How can one differentiate between thermostat issues and wa=
terpump issues?<u></u><u></u></p><p class=3D"MsoNormal"><u></u>=C2=A0<u></u=
></p><p class=3D"MsoNormal">Any ideas?<span><font color=3D"#888888"><u></u>=
<u></u></font></span></p><span><font color=3D"#888888"><p class=3D"MsoNorma=
l">Simon<u></u><u></u></p></font></span></div></div><br>___________________=
___________<wbr>_________________<br>
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