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Ah, good point Kees. On a road trip coming out of Death Valley on a
115degF day climbing the Panamint Mountains my BJ8's temp started
climbing rapidly towards 212. I turned the heater on full blast--not
fun, but better than boiling. Temp held steady at 212 until we
crested the mountains and it started to come down and we were back
to just miserable.<br>
<br>
I suppose you could close it if you don't expect hot weather and, if
you think of it, turn it on if the weather turns.<br>
<br>
<br>
<div class="moz-cite-prefix">On 7/10/2023 8:36 AM, Kees Oudesluijs
via Healeys wrote:<br>
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<p>Do not turn it off. It might save you from overheating the
engine on a very hot day or fan failure. When you see the
coolant temperature rise expectantly turn on the heating with
the heater fan full blast for some extra cooling of the engine
(but over heating the driver and SWMBO). However check first if
there is any coolant in the system at all.<br>
Kees Oudesluijs<br>
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<div class="moz-cite-prefix">Op 10-7-2023 om 16:26 schreef Simon
Lachlan via Healeys:<br>
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<p class="MsoNormal">I have a MkII BT7 with a normal Smith’s
heater. Normal insofar as it never seems to be turned OFF
100% or ON 100%.<o:p></o:p></p>
<p class="MsoNormal">We are in our summer(?!) at the moment
and I was wondering about turning off the tap in the hose
from the block that leads into the cabin for the heater.<o:p></o:p></p>
<p class="MsoNormal">Would the heater box and/or its valve
semi-dry out and fill with a mess of rusty crud?<o:p></o:p></p>
<p class="MsoNormal">Would the engine run hotter as there was
a little less water running through the system?<o:p></o:p></p>
<p class="MsoNormal">Or would I find myself basking in cool
luxury as I tootle off to the local boozer?<o:p></o:p></p>
<p class="MsoNormal">Or, most likely, none of the above,
especially the last one?!<o:p></o:p></p>
<p class="MsoNormal">I did take the car on quite a long trip
the other day (Le Mans Classic!!) and, once the heat had
soaked through the insulation, we were quite warm….<o:p></o:p></p>
<p class="MsoNormal">The more I think about this, the less I
like the idea of turning that tap off…..<o:p></o:p></p>
<p class="MsoNormal">The tap does work, before you all shout
at once!<o:p></o:p></p>
<p class="MsoNormal">Simon<o:p></o:p></p>
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