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<p>I have always done so with my cars if they had a fixed fan. I
just removed it and fitted a proper modern multi-blade fan with
ring around the blades as near the radiator as possible. I have
always fitted the thermo switch in the top radiator tank or top
hose. I used 22mm thread for the switch as there are thousnads of
variations available. The type of switch depends largely on the
thermostat you have in the car and the pressure or coolant you
have in the cooling system.</p>
<p>E.g. if you have an 86°C thermostat you would need a cutting out
temp of the thermoswitch of about 92°C. If you run a 7psi cooling
system with proper coolant you would need a cutting in temp. of
around 100°C, the lower the pressure the lower the cutting in
temp.</p>
<p>You would also need to fit an overflow reservoir and make sure
the rad.cap is fully airtight.</p>
<p>If you have an 82°C thermostat the cutting out temperatuire can
be choosen of about 88°C. <br>
</p>
<p>Always get the cutting out temp. of the thermoswitch about 5-6°C
over the opening temp. of the thermostat.</p>
<p>If you fit the thermoswitch in the bottom tank of the radiator
the above does not apply.</p>
<p><br>
</p>
<p>Kees Oudesluijs</p>
<p><br>
</p>
<p><br>
</p>
<div class="moz-cite-prefix">Op 24-1-2019 om 17:00 schreef i erbs:<br>
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<span
style="color:rgb(29,33,41);font-family:Helvetica,Arial,sans-serif;font-size:14px">Has
anyone run with just an electric fan, removing the engine fan
for the radiator? Thinking about running that way with a
thermostatic switch for the electric fan, like on modern cars.
That way I can mount the fan a pull between the rad and the
engine. Comments from experience please.</span> <br
clear="all">
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<div dir="ltr">Ira Erbs
<div>Portland,OR</div>
<div><span
style="font-family:'Times
New Roman',serif">
_______
_______</span><br
style="font-family:'Times
New Roman',serif">
<span
style="font-family:'Times
New Roman',serif">
(______ \____1959 BN4____/
_______)</span><br
style="font-family:'Times
New Roman',serif">
<span
style="font-family:'Times
New Roman',serif">
(_________________________)</span></div>
<div> BT7 engine and
disk brakes</div>
<div><br>
</div>
<div><br>
</div>
<div>1967 MGB <img
src="http://www.britishcarspecialists.com/assets/images/MG_emblem.jpg"
alt="MG"
moz-do-not-send="true"></div>
<div><br>
</div>
<div><span
style="color:rgb(51,51,51);font-family:"Helvetica
Neue",Helvetica,Arial,sans-serif;font-size:14px">A racing car is an
animal with a thousand
adjustments. Mario Andretti</span><br>
</div>
<div>Please excuse random auto
corrects and misspelled words</div>
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