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<p>A spoiler/baffle/air dam only works at some speed. It will do
nothing in a traffic jam and little in climbing steep slopes or in
slow traffic. Fitting a core with extra rows is always a good
thing, you can never have enough cooling capacity. However it
increases air flow resistance so you really should fit an electric
fan.<br>
</p>
<p>Kees Oudesluijs</p>
<p><br>
</p>
<p><br>
</p>
<div class="moz-cite-prefix">Op 30-10-2019 om 04:57 schreef Robert
Begani:<br>
</div>
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<p class="MsoNormal"><span>Stephen:</span></p>
<p class="MsoNormal"><span> </span></p>
<p class="MsoNormal"><span>As part of my rebuilding the engine
in my BJ8, I installed a fan on the outside of the radiator
with a manual switch for now. In addition, I installed the
“Shovel” a baffle on the underside of the radiator to direct
air into the engine compartment rather than going down under
the engine. Early driving of short distances on highways
and city streets without the fan indicates that the Shovel
is a great improvement for driving without overheating. I
can go along at 20-30 mph in light traffic and some stopping
with no overheating. However, you still need a fan to keep
the engine from overheating in the hot Florida Sun.</span></p>
<p class="MsoNormal"><span> </span></p>
<p class="MsoNormal"><span>On the other hand, I did not have an
overheating problem driving in the Chicago and Suburbs when
we lived there for over 30 years which is about the same
climate as Toronto, more or less as long as I stayed away
from traffic jams in the summer months. Southern Florida is
hot all the time! Next I will re-core the radiator.</span></p>
<p class="MsoNormal"><span> </span></p>
<p class="MsoNormal"><span>Bob Begani</span></p>
<p class="MsoNormal"><span>67 BJ8</span></p>
<p class="MsoNormal"><span> </span></p>
<p class="MsoNormal"><b>From:</b> Healeys
<a class="moz-txt-link-rfc2396E" href="mailto:healeys-bounces@autox.team.net"><healeys-bounces@autox.team.net></a> <b>On Behalf Of </b>warthodson---
via Healeys<br>
<b>Sent:</b> Tuesday, October 29, 2019 1:55 PM<br>
<b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:s.hutchings@rogers.com">s.hutchings@rogers.com</a>; <a class="moz-txt-link-abbreviated" href="mailto:healeys@autox.team.net">healeys@autox.team.net</a><br>
<b>Subject:</b> Re: [Healeys] Electric fan</p>
<p class="MsoNormal"> </p>
<div>
<div>
<p class="MsoNormal"><span>Stephen,</span></p>
</div>
<div>
<p class="MsoNormal"><span>Before adding an electric fan,
here are a few things to consider:</span></p>
</div>
<div>
<p class="MsoNormal"><span>I have a 6 bladed fan that was a
factory option. It has made a measurable difference on
my car. Many of the usual suppliers offer it. Some of
these repros. have a reputation for fatigue cracking
with disastrous results. I have had mine for 8-10 years
& I inspect it annually. No problem so far.</span></p>
</div>
<div>
<p class="MsoNormal"><span>Do you have an original type
thermostat that has a moving sleeve to block the bypass
port when the t'stat reaches the operating temp? If not,
you are loosing some of the radiator's efficiency. </span></p>
</div>
<div>
<p class="MsoNormal"><span>Do you have the original air
baffles installed? </span></p>
</div>
<div>
<p class="MsoNormal"><span>Using coolant mix in the summer
with 15-25% antifreeze will improve the heat transfer
efficiency of your cooling system measurably when
compared to a 50% or higher mix. </span></p>
</div>
<div>
<p class="MsoNormal"><span>Some antifreeze is necessary for
water pump lubrication. I drain the 50% solution into
Jugs in the spring & put a 20% solution in. I save
the 50% solution & reverse the process in the fall. </span></p>
</div>
<div>
<p class="MsoNormal"><span>Have you considered having your
radiator re-cored with a more efficient core?</span><span></span></p>
</div>
<div>
<p class="MsoNormal"><span>Is your electric system capable
of the increased load of the electric fan?</span></p>
</div>
<div>
<p class="MsoNormal"><span> </span></p>
</div>
<div>
<p class="MsoNormal"><span>Depending upon your definition of
practical, I assumed it meant easy &/or inexpensive,
there are more things that can be done to improve the
cooling system efficiency.</span></p>
</div>
<div>
<p class="MsoNormal"><span> </span></p>
</div>
<div>
<p class="MsoNormal"><span>Gary Hodson</span></p>
</div>
<p class="MsoNormal"><span> </span></p>
<div>
<p class="MsoNormal"><span>-----Original Message-----<br>
From: Stephen Hutchings <<a
href="mailto:s.hutchings@rogers.com"
moz-do-not-send="true">s.hutchings@rogers.com</a>><br>
To: Healeys <<a href="mailto:healeys@autox.team.net"
moz-do-not-send="true">healeys@autox.team.net</a>><br>
Sent: Tue, Oct 29, 2019 12:02 pm<br>
Subject: [Healeys] Electric fan</span></p>
<div>
<p class="MsoNormal"><span>I’m interested in what is the
most practical way to install an electric fan.</span></p>
</div>
<div>
<p class="MsoNormal"><span>I know some people opt to keep
the original fan blades as well, and switch on the
electric one when it’s really needed, and others go
for a complete electric replacement with a thermostat.</span></p>
</div>
<div>
<p class="MsoNormal"><span> </span></p>
</div>
<div>
<p class="MsoNormal"><span>I haven’t put an electric fan
in, and I’ve got away without it so far. But I really
hate getting stuck in traffic in hot weather- doesn’t
happen often but it can get pretty damn hot under
those circumstances, and it would be nice to have one
less thing to be concerned with when travelling.</span></p>
</div>
<div>
<p class="MsoNormal"><span>The traffic around Toronto is
so awful, no matter how strategic your timing is- you
can still get stuck.</span></p>
</div>
<div>
<p class="MsoNormal"><span> </span></p>
</div>
<div>
<p class="MsoNormal"><span>Now that my car is put away for
the winter, I’m thinking about possible future
projects.</span></p>
</div>
<div>
<p class="MsoNormal"><span> </span></p>
</div>
<div>
<p class="MsoNormal"><span>Stephen, BJ8</span></p>
</div>
<div>
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