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I have a BJ8 with:
- OEM radiator with 4-row 'Excel' core
- Texas Cooler fan
- recently rebuilt engine with approx. 6K miles--hot-tanked, properly
tuned, etc.--and Robertshaw sleeved 180degF thermostat
- Jet-Hot coated exhaust manifold
... and a BN2/100M with:
- OEM radiator with 4-row 'Excel' core
- OEM art deco fan
- rebuilt engine with a couple thousand miles at most--still working on
'perfect' mixture--and garden-variety Stant 180degF thermostat
- manifold with high-temp 'authentic color' paint only
Both behave identically, i.e. will run 'cool'--160degF or less--on cool
days, 180degF on 'typical' days (72degF), and both will get hot (over
200) sitting in traffic on typical or hotter days or pulling up a long
grade.
FWIW
Bob
On 1/14/2020 9:58 AM, Michael Salter wrote:
> "Why do other Healeyâ??s with a stock radiator not have this problem,
> who knows?"
>
> Bob that has perplexed me for decades but certainly seems to be reality.
> Good luck with your modifications ... I have always found that
> additional tubes in the radiator make a huge difference.
>
> M
>
> On Tue, Jan 14, 2020, 12:27 PM Robert Begani, <rfbegani@gmail.com
>
> I agree with you, however, this is south Florida where a cool
> winter day is today, where the temperature is currently 79 degrees
> and rising to a high of 83 degrees with a se wind at 7 mph. Great
> for a day sail on the Harbor which I will do in the next hour.
> However, it does make driving a hot car fun. There is not enough
> cooling capacity in the stock radiator to handle hot climates and
> have to stop and go because the temperature does not go down only
> up. So the next step is to re-core the radiator. The local
> radiator guy knows the problem and for $500 will provide new core
> using the old tanks which will give at least 50% more cooling
> capacity. This is a SKI purchase. Spend the Kids Inheritance.Â
> Then I will think about wrapping the exhaust manifolds and headers
> to stop vapor lock.
>
> What do you think about Push and Pull? Take off the engine fan?
>
> By the way, I know the engine machine shop boiled out, oil bathed,
> everything in the engine during his machining of the engine to
> bring it up to specifications. He knows what to do. The only
> modification is the 20 over pistons.
>
> Why do other Healeyâ??s with a stock radiator not have this problem,
> who knows?
>
> Bob
>
> *Sent:* Tuesday, January 14, 2020 11:47 AM
> *Subject:* RE: [Healeys] Over heating and adding additional core
> tubes to theexisting radiator
>
> Bob
>
> With the extras that you have added to facilitate the airflow the
> car should be running much cooler than 212, even with a stock
> radiator. There is something else amiss in the equation.
>
> Perry
>
> Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986>
> for Windows 10
>
> *Sent: *Tuesday, January 14, 2020 11:23 AM
> *Subject: *RE: [Healeys] Over heating and adding additional core
> tubes to theexisting radiator
>
> Hi Perry:
>
> I do not remember the CFM, however, it is the Hayden Fan offered
> by Moss with the largest diameter to fit the radiator. As a
> pusher it really pushes air through the engine compartment at low
> speeds and standing still. I still have an original Texas 6 blade
> fan on the engine. As I was searching overheating problems, one
> reference indicated that is not recommended as they act against
> each other.
>
> Bob
>
>
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I have a BJ8 with:<br>
<br>
- OEM radiator with 4-row 'Excel' core<br>
- Texas Cooler fan<br>
- recently rebuilt engine with approx. 6K miles--hot-tanked,
properly tuned, etc.--and Robertshaw sleeved 180degF thermostat<br>
- Jet-Hot coated exhaust manifold<br>
<br>
... and a BN2/100M with:<br>
<br>
- OEM radiator with 4-row 'Excel' core<br>
- OEM art deco fan<br>
- rebuilt engine with a couple thousand miles at most--still working
on 'perfect' mixture--and garden-variety Stant 180degF thermostat<br>
- manifold with high-temp 'authentic color' paint only<br>
<br>
Both behave identically, i.e. will run 'cool'--160degF or less--on
cool days, 180degF on 'typical' days (72degF), and both will get hot
(over 200) sitting in traffic on typical or hotter days or pulling
up a long grade.<br>
<br>
FWIW<br>
<br>
Bob<br>
<br>
<br>
<br>
<div class="moz-cite-prefix">On 1/14/2020 9:58 AM, Michael Salter
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAB3i7L+mjj80_AvnkPT5iOaXLbYEE2YnysyvszSC3fT7uBOMsw@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="auto"><span
style="color:rgb(31,73,125);font-family:arial,sans-serif;font-size:16px">"Why
do other Healeyâ??s with a stock radiator not have this problem,
who knows?"</span>
<div dir="auto"><span
style="color:rgb(31,73,125);font-family:arial,sans-serif;font-size:16px"><br>
</span></div>
<div dir="auto"><span
style="color:rgb(31,73,125);font-family:arial,sans-serif;font-size:16px">Bob
that has perplexed me for decades but certainly seems to be
reality.</span></div>
<div dir="auto"><span
style="color:rgb(31,73,125);font-family:arial,sans-serif;font-size:16px">Good
luck with your modifications ... I have always found that
additional tubes in the radiator make a huge
difference. </span></div>
<div dir="auto"><span
style="color:rgb(31,73,125);font-family:arial,sans-serif;font-size:16px"><br>
</span></div>
<div dir="auto"><span
style="color:rgb(31,73,125);font-family:arial,sans-serif;font-size:16px">M</span></div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Tue, Jan 14, 2020, 12:27 PM
Robert Begani, <<a href="mailto:rfbegani@gmail.com";
moz-do-not-send="true">rfbegani@gmail.com</a>> wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div link="blue" vlink="#954F72" lang="EN-US">
<div class="m_-2388756254178813721WordSection1">
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1f497d">I
agree with you, however, this is south Florida where a
cool winter day is today, where the temperature is
currently 79 degrees and rising to a high of 83
degrees with a se wind at 7 mph. Great for a day sail
on the Harbor which I will do in the next hour.Â
However, it does make driving a hot car fun. There is
not enough cooling capacity in the stock radiator to
handle hot climates and have to stop and go because
the temperature does not go down only up. So the next
step is to re-core the radiator. The local radiator
guy knows the problem and for $500 will provide new
core using the old tanks which will give at least 50%
more cooling capacity. This is a SKI purchase. Spend
the Kids Inheritance. Then I will think about
wrapping the exhaust manifolds and headers to stop
vapor lock.</span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1f497d">Â </span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1f497d">What
do you think about Push and Pull? Take off the engine
fan?</span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1f497d">Â </span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1f497d">By
the way, I know the engine machine shop boiled out,
oil bathed, everything in the engine during his
machining of the engine to bring it up to
specifications. He knows what to do. The only
modification is the 20 over pistons. </span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1f497d">Â </span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1f497d">Why
do other Healeyâ??s with a stock radiator not have this
problem, who knows?</span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1f497d">Â </span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1f497d">Bob
</span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1f497d">Â </span></p>
<div>
<div style="border:none;border-top:solid #e1e1e1
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b>From:</b> Perry <<a
href="mailto:healeyguy@aol.com"; target="_blank"
rel="noreferrer"
moz-do-not-send="true">healeyguy@aol.com</a>>
<br>
<b>Sent:</b> Tuesday, January 14, 2020 11:47 AM<br>
<b>To:</b> Robert Begani <<a
href="mailto:rfbegani@gmail.com"; target="_blank"
rel="noreferrer"
moz-do-not-send="true">rfbegani@gmail.com</a>><br>
<b>Subject:</b> RE: [Healeys] Over heating and
adding additional core tubes to theexisting radiator</p>
</div>
</div>
<p class="MsoNormal">Â </p>
<p class="MsoNormal">Bob</p>
<p class="MsoNormal">With the extras that you have added
to facilitate the airflow the car should be running much
cooler than 212, even with a stock radiator. There is
something else amiss in the equation. </p>
<p class="MsoNormal">Perry</p>
<p class="MsoNormal">Â </p>
<p class="MsoNormal">Sent from <a
href="https://go.microsoft.com/fwlink/?LinkId=550986";
target="_blank" rel="noreferrer"
moz-do-not-send="true">Mail</a> for Windows 10</p>
<p class="MsoNormal">Â </p>
<div style="border:none;border-top:solid #e1e1e1
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b>From: </b><a
href="mailto:rfbegani@gmail.com"; target="_blank"
rel="noreferrer" moz-do-not-send="true">Robert
Begani</a><br>
<b>Sent: </b>Tuesday, January 14, 2020 11:23 AM<br>
<b>To: </b><a href="mailto:healeyguy@aol.com";
target="_blank" rel="noreferrer"
moz-do-not-send="true">'Perry'</a><br>
<b>Subject: </b>RE: [Healeys] Over heating and adding
additional core tubes to theexisting radiator</p>
</div>
<p class="MsoNormal">Â </p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1f497d">Hi
Perry:</span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1f497d">Â </span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1f497d">I
do not remember the CFM, however, it is the Hayden Fan
offered by Moss with the largest diameter to fit the
radiator. As a pusher it really pushes air through
the engine compartment at low speeds and standing
still. I still have an original Texas 6 blade fan on
the engine. As I was searching overheating problems,
one reference indicated that is not recommended as
they act against each other.</span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1f497d">Â </span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Arial",sans-serif;color:#1f497d">Bob</span></p>
<br>
</div>
</div>
</blockquote>
</div>
<pre class="moz-quote-pre" wrap="">
</pre>
</blockquote>
<br>
</body>
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