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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
>
> 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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<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$@lachlan@homecall.co.uk"
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>
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