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The noise was excessive in my Austin-Healey (can't speak to
Austin-Healys). The fan all but drowned-out the engine at idle and I
didn't like sitting in a cloud of dust (but it was the most-effective
temp-lowering mod I've tried). Note the fan BCS originally sold was
different than what I think they sell now; it had massively curved,
rectangular blades--seven of them--that went from a couple inches of
pitch to near-flat as speed increased.
I only replace cores once (except when a water pump shaft broke and sent
a fan into the radiator).
Bob
On 10/5/2025 7:36 AM, Don Anglesey wrote:
> Your worried about a little noise in an Austin Healy? Keep the cooler
> and continue to replace radiator cores. There are several better
> options. To each his own.
> Don
>
> Get Outlook for Android <https://aka.ms/AAb9ysg>
> ------------------------------------------------------------------------
> *From:* Healeys <healeys-bounces@autox.team.net> on behalf of Bob
> Spidell via Healeys <healeys@autox.team.net>
> *Sent:* Saturday, October 4, 2025 11:07:34 PM
> *To:* healeys@autox.team.net <healeys@autox.team.net>
> *Subject:* Re: [Healeys] Yet another mystery
> Except flex fans are extremely noisy. I got a 7-blade SS Hayden flex
> fan and BCS's own home-rolled shroud from them decades ago, and it was
> good for a 5-10deg reduction at idle but, damn was it loud (and it
> would blow clouds of dust out from under the car when stationary).
> Ditched it for a TC (but kept the shroud). Some SS flex fans are known
> for throwing a blade.
>
> bs
>
> On 10/4/2025 9:15 PM, Don Anglesey wrote:
>> Ditch the Texas cooler, British car specialists sell a nice
>> stainless-steel fan that doesn't flex into your radiator.
>>
>> Don
>>
>> Get Outlook for Android <https://aka.ms/AAb9ysg>
>> ------------------------------------------------------------------------
>> *From:* Healeys <healeys-bounces@autox.team.net>
>> *Sent:* Friday, October 3, 2025 6:04:28 AM
>> *To:* Harold Manifold <manifold@telus.net>
>> *Subject:* Re: [Healeys] Yet another mystery
>> I inadvertently omitted an important detail: with the advent of cool
>> weather in NH, rather than change the thermostat to 180 from 160, I
>> slipped a piece of cardboard in front of the radiator. I had driven
>> 200 miles in back roads with the cardboard in place and the temp
>> gauge never got above 170, and so I didn't watch the temp gauge while
>> dashing down the interstate at 80 mph. I was unaware of any problem
>> until arriving home, I could smell radiator fluid. When I popped the
>> hood all was wet, hot, and steaming. Perhaps at speeds 60mph and
>> below the fan blades didn't flex enough but at 80 mph, they did and
>> thus I inadvertently caused the damage to the radiator. I doesn't
>> leak. Today, having removed the suspect cardboard, I'll venture forth
>> and watch the temp gauge keenly.......rich
>>
>>
>>
>>
>>
>>
>>
>> On Thursday, October 2, 2025 at 09:38:55 PM EDT, Michael Salter
>>
>>
>> I would also suggest that you take a careful look at the baffles that
>> are, or should be, installed forward from the sides of the radiator
>> to the grille. If these baffles aren't correctly fitted hot air from
>> the backside of the radiator will swirl around to the front and pass
>> through the radiator again and thus seriously deminish its cooling
>> ability.
>>
>> M
>>
>>
>> ------------------------------------------------------------------------
>> *From:* Healeys <healeys-bounces@autox.team.net>
>> *Sent:* Thursday, October 2, 2025 6:45:19 PM
>> *Subject:* Re: [Healeys] Yet another mystery
>> Rich,
>>
>> Your comments "high speed. run of twenty miles" and "extra series of
>> cooling tubes" may offer some clues. Fan blades flex away from the
>> side that pushes air, in other words towards the radiator. The extra
>> cooling tubes may have reduced the clearance between the radiator and
>> the fan. There isn't much clearance to begin with. The combination of
>> the two may have been enough for the fan to hit the radiator.
>>
>> The other issue is what caused the overheating. At high speeds the
>> fan has little to no effect on cooling. Unless the ambient
>> temperature was very high and you were going up a steep hill the
>> colling system should keep up. What was the water temperature gauge
>> saying?
>>
>> Harold
>>
>>
>>
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The noise was excessive in my Austin-Healey (can't speak to
Austin-Healys). The fan all but drowned-out the engine at idle and I
didn't like sitting in a cloud of dust (but it was the
most-effective temp-lowering mod I've tried). Note the fan BCS
originally sold was different than what I think they sell now; it
had massively curved, rectangular blades--seven of them--that went
from a couple inches of pitch to near-flat as speed increased. <br>
<br>
I only replace cores once (except when a water pump shaft broke and
sent a fan into the radiator).<br>
<br>
Bob <br>
<br>
<br>
<div class="moz-cite-prefix">On 10/5/2025 7:36 AM, Don Anglesey
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:SJ0PR04MB76144A087AB4BF096E410507FDE2A@SJ0PR04MB7614.namprd04.prod.outlook.com">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<div dir="auto"
style="font-family: Aptos, Aptos_MSFontService, -apple-system, Roboto, Arial,
Helvetica, sans-serif; font-size: 12pt;">
Your worried about a little noise in an Austin Healy? Keep the
cooler and continue to replace radiator cores. There are
several better options. To each his own.</div>
<div dir="auto"
style="font-family: Aptos, Aptos_MSFontService, -apple-system, Roboto, Arial,
Helvetica, sans-serif; font-size: 12pt;">
Don</div>
<div id="ms-outlook-mobile-body-separator-line"
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style="font-family: Aptos, Aptos_MSFontService, -apple-system, Roboto, Arial,
Helvetica, sans-serif; font-size: 12pt;">
<br>
</div>
</div>
<div dir="auto"
style="font-family:Aptos, Aptos_MSFontService, -apple-system, Roboto, Arial,
Helvetica, sans-serif;font-size:12pt"
id="ms-outlook-mobile-signature">
<span
style="font-family: Aptos, Aptos_MSFontService, -apple-system, Roboto, Arial,
Helvetica, sans-serif; font-size: 12pt;">Get
<a href="https://aka.ms/AAb9ysg"; moz-do-not-send="true">Outlook
for Android</a></span></div>
<hr style="display:inline-block;width:98%" tabindex="-1">
<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif"
style="font-size:11pt" color="#000000"><b>From:</b> Healeys
<a class="moz-txt-link-rfc2396E"
href="mailto:healeys-bounces@autox.team.net";><healeys-bounces@autox.team.net></a>
on behalf of Bob
Spidell via Healeys <a class="moz-txt-link-rfc2396E"
href="mailto:healeys@autox.team.net";><healeys@autox.team.net></a><br>
<b>Sent:</b> Saturday, October 4, 2025 11:07:34 PM<br>
<b>To:</b> <a class="moz-txt-link-abbreviated"
href="mailto:healeys@autox.team.net";>healeys@autox.team.net</a>
<a class="moz-txt-link-rfc2396E"
href="mailto:healeys@autox.team.net";><healeys@autox.team.net></a><br>
<b>Subject:</b> Re: [Healeys] Yet another mystery</font>
<div>Â </div>
</div>
<div>Except flex fans are extremely noisy. I got a 7-blade SS
Hayden flex fan and BCS's own home-rolled shroud from them
decades ago, and it was good for a 5-10deg reduction at idle
but, damn was it loud (and it would blow clouds of dust out from
under the car when stationary). Ditched it for a TC (but kept
the shroud). Some SS flex fans are known for throwing a blade. <br>
<br>
bs<br>
<br>
<div class="x_moz-cite-prefix">On 10/4/2025 9:15 PM, Don
Anglesey wrote:<br>
</div>
<blockquote type="cite">
<div dir="auto"
style="font-family:Aptos,Aptos_MSFontService,-apple-system,Roboto,Arial,Helvetica,sans-serif;
font-size:12pt">
Ditch the Texas cooler, British car specialists sell a nice
stainless-steel fan that doesn't flex into your radiator. </div>
<div dir="auto"
style="font-family:Aptos,Aptos_MSFontService,-apple-system,Roboto,Arial,Helvetica,sans-serif;
font-size:12pt">
<br>
</div>
<div dir="auto"
style="font-family:Aptos,Aptos_MSFontService,-apple-system,Roboto,Arial,Helvetica,sans-serif;
font-size:12pt">
Don</div>
<div id="x_ms-outlook-mobile-body-separator-line"
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style="font-family:Aptos,Aptos_MSFontService,-apple-system,Roboto,Arial,Helvetica,sans-serif;
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<br>
</div>
</div>
<div id="x_ms-outlook-mobile-signature" dir="auto"
style="font-family:Aptos,Aptos_MSFontService,-apple-system,Roboto,Arial,Helvetica,sans-serif;
font-size:12pt">
<span
style="font-family:Aptos,Aptos_MSFontService,-apple-system,Roboto,Arial,Helvetica,sans-serif;
font-size:12pt">Get
</span><a href="https://aka.ms/AAb9ysg";
originalsrc="https://aka.ms/AAb9ysg";
style="font-family:Aptos,Aptos_MSFontService,-apple-system,Roboto,Arial,Helvetica,sans-serif;
font-size:12pt"
moz-do-not-send="true">Outlook for Android</a></div>
<hr tabindex="-1" style="display:inline-block; width:98%">
<div id="x_divRplyFwdMsg" dir="ltr"><font
face="Calibri, sans-serif" color="#000000"
style="font-size:11pt"><b>From:</b> Healeys
<a class="x_moz-txt-link-rfc2396E"
href="mailto:healeys-bounces@autox.team.net";
moz-do-not-send="true"><healeys-bounces@autox.team.net></a>
on behalf of Richard Antal via Healeys
<a class="x_moz-txt-link-rfc2396E"
href="mailto:healeys@autox.team.net";
moz-do-not-send="true"><healeys@autox.team.net></a><br>
<b>Sent:</b> Friday, October 3, 2025 6:04:28 AM<br>
<b>To:</b> Harold Manifold <a
class="x_moz-txt-link-rfc2396E"
href="mailto:manifold@telus.net"; moz-do-not-send="true">
<manifold@telus.net></a>; Michael Salter <a
class="x_moz-txt-link-rfc2396E"
href="mailto:michael.salter@gmail.com";
moz-do-not-send="true">
<michael.salter@gmail.com></a><br>
<b>Cc:</b> Healeys <a class="x_moz-txt-link-rfc2396E"
href="mailto:healeys@autox.team.net";
moz-do-not-send="true">
<healeys@autox.team.net></a><br>
<b>Subject:</b> Re: [Healeys] Yet another mystery</font>
<div>Â </div>
</div>
<div>
<div class="x_x_ydp3f8c0b14yahoo-style-wrap"
style="font-family:Helvetica Neue,Helvetica,Arial,sans-serif; font-size:13px">
<div dir="ltr" data-setdir="false">I inadvertently omitted
an important detail: with the advent of cool weather in
NH, rather than change the thermostat to 180 from 160, I
slipped a piece of cardboard in front of the radiator. I
had driven 200 miles in back roads with the cardboard in
place and the temp gauge never got above 170, and so I
didn't watch the temp gauge while dashing down the
interstate at 80 mph. I was unaware of any problem until
arriving home, I could smell radiator fluid. When I
popped the hood all was wet, hot, and steaming. Perhaps
at speeds 60mph and below the fan blades didn't flex
enough but at 80 mph, they did and thus I inadvertently
caused the damage to the radiator. I doesn't leak.
Today, having removed the suspect cardboard, I'll
venture forth and watch the temp gauge keenly.......rich</div>
<div dir="ltr" data-setdir="false"><br>
</div>
<div dir="ltr" data-setdir="false"><br>
</div>
<div dir="ltr" data-setdir="false"><br>
</div>
<div dir="ltr" data-setdir="false"><br>
</div>
<div dir="ltr" data-setdir="false"><br>
</div>
<div dir="ltr" data-setdir="false"><br>
</div>
<div><br>
</div>
<div id="x_x_ydp3f8c0b14yahoo_quoted_0026371616"
class="x_x_ydp3f8c0b14yahoo_quoted">
<div
style="font-family:'Helvetica Neue',Helvetica,Arial,sans-serif; font-size:13px">
<div>On Thursday, October 2, 2025 at 09:38:55 PM EDT,
Michael Salter <a class="x_moz-txt-link-rfc2396E"
href="mailto:michael.salter@gmail.com";
moz-do-not-send="true">
<michael.salter@gmail.com></a> wrote: </div>
<div><br>
</div>
<div><br>
</div>
<div>
<div id="x_x_ydp3f8c0b14yiv2668703681">
<div>
<div
style="font-family:Aptos,-apple-system,Roboto,Arial,Helvetica,sans-serif;
font-size:12pt">
I would also suggest that you take a careful
look at the baffles that are, or should be,
installed forward from the sides of the
radiator to the grille. If these baffles
aren't correctly fitted hot air from the
backside of the radiator will swirl around to
the front and pass through the radiator again
and thus seriously deminish its cooling
ability.</div>
<div
style="font-family:Aptos,-apple-system,Roboto,Arial,Helvetica,sans-serif;
font-size:12pt">
<br clear="none">
</div>
<div
style="font-family:Aptos,-apple-system,Roboto,Arial,Helvetica,sans-serif;
font-size:12pt">
M</div>
<div
id="x_x_ydp3f8c0b14yiv2668703681ms-outlook-mobile-body-separator-line"
style="font-family:Aptos,-apple-system,Roboto,Arial,Helvetica,sans-serif;
font-size:12pt">
<div
style="font-family:Aptos,-apple-system,Roboto,Arial,Helvetica,sans-serif;
font-size:12pt">
<br clear="none">
</div>
</div>
<div
id="x_x_ydp3f8c0b14yiv2668703681ms-outlook-mobile-signature"
style="font-family:Aptos,-apple-system,Roboto,Arial,Helvetica,sans-serif;
font-size:12pt">
<div
style="font-family:Aptos,-apple-system,Roboto,Arial,Helvetica,sans-serif;
font-size:12pt">
<br clear="none">
</div>
</div>
<hr tabindex="-1"
style="display:inline-block; width:98%">
<div id="x_x_ydp3f8c0b14yiv2668703681yqt68221"
class="x_x_ydp3f8c0b14yiv2668703681yqt4146443629">
<div dir="ltr"
id="x_x_ydp3f8c0b14yiv2668703681divRplyFwdMsg"><font
face="Calibri, sans-serif" color="#000000"
style="font-size:11pt"><b>From:</b>
Healeys
<a class="x_moz-txt-link-rfc2396E"
href="mailto:healeys-bounces@autox.team.net";
moz-do-not-send="true"><healeys-bounces@autox.team.net></a>
on behalf of Harold Manifold
<a class="x_moz-txt-link-rfc2396E"
href="mailto:manifold@telus.net";
moz-do-not-send="true"><manifold@telus.net></a><br
clear="none">
<b>Sent:</b> Thursday, October 2, 2025
6:45:19 PM<br clear="none">
<b>To:</b> Richard Antal <a
class="x_moz-txt-link-rfc2396E"
href="mailto:rantal243@yahoo.com";
moz-do-not-send="true">
<rantal243@yahoo.com></a><br
clear="none">
<b>Cc:</b> Healeys <a
class="x_moz-txt-link-rfc2396E"
href="mailto:healeys@autox.team.net";
moz-do-not-send="true">
<healeys@autox.team.net></a><br
clear="none">
<b>Subject:</b> Re: [Healeys] Yet another
mystery</font>
<div>Â </div>
</div>
<div>
<div dir="ltr">Rich,
<div><br clear="none">
</div>
<div>Your comments "high speed. run of
twenty miles" and "extra series of
cooling tubes" may offer some clues. Fan
blades flex away from the side that
pushes air, in other words towards the
radiator. The extra cooling tubes may
have reduced the clearance between the
radiator and the fan. There isn't much
clearance to begin with. The combination
of the two may have been enough for the
fan to hit the radiator.</div>
<div><br clear="none">
</div>
<div>The other issue is what caused the
overheating. At high speeds the fan has
little to no effect on cooling. Unless
the ambient temperature was very high
and you were going up a steep hill the
colling system should keep up. What was
the water temperature gauge saying?</div>
<div><br clear="none">
</div>
<div>Harold</div>
<div><br clear="none">
</div>
<div><br clear="none">
</div>
</div>
<br>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</blockquote>
</div>
</blockquote>
<br>
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