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    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="moz-cite-prefix">On 10/4/2025 9:15 PM, Don Anglesey
      wrote:<br>
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cite="mid:SJ0PR04MB7614A7611718CC6FE5F8BB48FDE2A@SJ0PR04MB7614.namprd04.prod.outlook.com">
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        Ditch the Texas cooler, British car specialists sell a nice
        stainless-steel fan that doesn't flex into your radiator. </div>
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        Don</div>
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      <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 Richard
          Antal via Healeys <a class="moz-txt-link-rfc2396E" href="mailto:healeys@autox.team.net"><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="moz-txt-link-rfc2396E" href="mailto:manifold@telus.net"><manifold@telus.net></a>; Michael
          Salter <a class="moz-txt-link-rfc2396E" href="mailto:michael.salter@gmail.com"><michael.salter@gmail.com></a><br>
          <b>Cc:</b> Healeys <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>
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        <div class="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>
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            <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="moz-txt-link-rfc2396E" href="mailto:michael.salter@gmail.com"><michael.salter@gmail.com></a> wrote:
              </div>
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                      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>
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                      M</div>
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                      <div dir="ltr"
                        id="x_ydp3f8c0b14yiv2668703681divRplyFwdMsg"><font
                          face="Calibri, sans-serif" color="#000000"
                          style="font-size:11pt"><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 Harold Manifold
                          <a class="moz-txt-link-rfc2396E" href="mailto:manifold@telus.net"><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="moz-txt-link-rfc2396E" href="mailto:rantal243@yahoo.com"><rantal243@yahoo.com></a><br clear="none">
                          <b>Cc:</b> Healeys
                          <a class="moz-txt-link-rfc2396E" href="mailto:healeys@autox.team.net"><healeys@autox.team.net></a><br clear="none">
                          <b>Subject:</b> Re: [Healeys] Yet another
                          mystery</font>
                        <div> </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">
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class="x_ydp3f8c0b14yiv2668703681x_gmail_quote x_ydp3f8c0b14yiv2668703681x_gmail_quote_container">
                          <div dir="ltr"
class="x_ydp3f8c0b14yiv2668703681x_gmail_attr">On Thu, Oct 2, 2025 at
                            1:39 PM Richard Antal via Healeys <<a
                              shape="rect"
                              href="mailto:healeys@autox.team.net"
                              rel="nofollow" target="_blank"
                              moz-do-not-send="true"
                              class="moz-txt-link-freetext">healeys@autox.team.net</a>>
                            wrote:<br clear="none">
                          </div>
                          <blockquote
class="x_ydp3f8c0b14yiv2668703681x_gmail_quote"
style="margin:0px 0px 0px 0.8ex; border-left:1px solid rgb(204,204,204); padding-left:1ex">
                            <div>
                              <div
style="font-family:Helvetica,Arial,sans-serif; font-size:13px">
                                <div dir="ltr">Listers,</div>
                                <div dir="ltr">    My BJ8 seems
                                  beleaguered with misfortune. A couple
                                  of weeks ago I noted the oil pressure
                                  gauge wildly oscillating at various
                                  speeds. It vanished two days later.</div>
                                <div dir="ltr">    Yesterday a high
                                  speed. run of twenty miles produce an
                                  overheating radiator with fluid
                                  spewing from the overflow tube. To my
                                  horror, I saw that the Texas cooler
                                  fan which I'd had for at least 25
                                  years had confronted the engine side
                                  of the radiator leaving a distinct
                                  circular impression and abrasion to
                                  the tip of one of the fan blades. That
                                  radiator was rebuilt two years ago
                                  with an extra series of cooling tubes
                                  and had given no problems for at least
                                  5000 miles. I assumed the harness
                                  which prevents the engine from sliding
                                  forward was faulty. Inspection of the
                                  underside did not support that
                                  conclusion--it looked fine to me: all
                                  bushings and nuts were in place. I ran
                                  the engine after filling the radiator
                                  and saw no evidence of recurrence of
                                  the fan nudging the radiator. I'm
                                  perplexed what to do next. Thanks for
                                  your thoughts......</div>
                                <div dir="ltr">Rich Antal</div>
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