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    FWIW, I had my BJ8's manifold coated--by JetHot--during an overhaul
    and didn't notice any difference in running temps.<br>
    <br>
    <br>
    <div class="moz-cite-prefix">On 7/21/2021 8:04 AM, Bruce Steele via
      Healeys wrote:<br>
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        <p class="MsoNormal"><span style="font-family:"Trebuchet
            MS",sans-serif">Thanks, Alan.  I had the exhaust
            manifold ceramic coated years ago.  <o:p></o:p></span></p>
        <p class="MsoNormal"><span style="font-family:"Trebuchet
            MS",sans-serif"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="font-family:"Trebuchet
            MS",sans-serif">Bruce Steele<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="font-family:"Trebuchet
            MS",sans-serif">Brea, CA<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="font-family:"Trebuchet
            MS",sans-serif">1960 BN7<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="font-family:"Trebuchet
            MS",sans-serif"><o:p> </o:p></span></p>
        <p class="MsoNormal"><b><span
              style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif">
            Alan Seigrist [<a class="moz-txt-link-freetext" href="mailto:healey.nut@gmail.com">mailto:healey.nut@gmail.com</a>] <br>
            <b>Sent:</b> Tuesday, July 20, 2021 8:32 PM<br>
            <b>To:</b> Harold Manifold <a class="moz-txt-link-rfc2396E" href="mailto:manifold@telus.net"><manifold@telus.net></a><br>
            <b>Cc:</b> Kees Oudesluijs <a class="moz-txt-link-rfc2396E" href="mailto:coudesluijs@upcmail.nl"><coudesluijs@upcmail.nl></a>;
            Bruce Steele <a class="moz-txt-link-rfc2396E" href="mailto:healeybruce@roadrunner.com"><healeybruce@roadrunner.com></a>; Austin
            Healey <a class="moz-txt-link-rfc2396E" href="mailto:Healeys@autox.team.net"><Healeys@autox.team.net></a><br>
            <b>Subject:</b> Re: [Healeys] Auxiliary electric fan<o:p></o:p></span></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <div>
          <p class="MsoNormal">In 1991 bolt on cooling fans didn't have
            sufficient CFMs to be particularly effective, but worked
            well on the jags and MGs that had them simply because they
            designed the systems around the CFMs they could produce.  In
            the last 10-15 years, the fans you can buy now can move a
            huge amount of air, so putting a pusher in front of the
            radiator is a viable option now.<o:p></o:p></p>
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            <p class="MsoNormal"><o:p> </o:p></p>
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          <div>
            <p class="MsoNormal">Although my view still remains to make
              sure the cooling system is sorted, suggest jet hot coating
              the exhaust header first, and go with a plastic 5 blade
              fan and use a 165 deg thermostat.  If that still doesn't
              work then consider adding a fan.<o:p></o:p></p>
            <div>
              <p class="MsoNormal"><o:p> </o:p></p>
            </div>
            <div>
              <p class="MsoNormal">Cheers,<o:p></o:p></p>
            </div>
            <div>
              <p class="MsoNormal"><o:p> </o:p></p>
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              <p class="MsoNormal">Alan<o:p></o:p></p>
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        <p class="MsoNormal"><o:p> </o:p></p>
        <div>
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            <p class="MsoNormal">On Wed, Jul 21, 2021 at 1:11 AM Harold
              Manifold via Healeys <<a
                href="mailto:healeys@autox.team.net"
                moz-do-not-send="true">healeys@autox.team.net</a>>
              wrote:<o:p></o:p></p>
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            1.0pt;padding:0in 0in 0in
            6.0pt;margin-left:4.8pt;margin-right:0in">
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                <p class="MsoNormal"
                  style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Bruce,<o:p></o:p></p>
                <p class="MsoNormal"
                  style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
                <p class="MsoNormal"
                  style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">See
                  this 1991 memo form Geoff Healey. An electric fan
                  could worsen cooling problems if it doesn’t always
                  draw ambient air. <o:p></o:p></p>
                <p class="MsoNormal"
                  style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
                <p class="MsoNormal"
                  style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Harold<o:p></o:p></p>
                <p class="MsoNormal"
                  style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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                  1.0pt;padding:3.0pt 0in 0in 0in">
                  <p class="MsoNormal"
                    style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b>From:
                    </b><a href="mailto:healeys@autox.team.net"
                      target="_blank" moz-do-not-send="true">Kees
                      Oudesluijs via Healeys</a><br>
                    <b>Sent: </b>Tuesday, July 20, 2021 7:23 AM<br>
                    <b>To: </b><a
                      href="mailto:healeybruce@roadrunner.com"
                      target="_blank" moz-do-not-send="true">Bruce
                      Steele</a>; <a
                      href="mailto:Healeys@autox.team.net"
                      target="_blank" moz-do-not-send="true">Austin
                      Healey</a><br>
                    <b>Subject: </b>Re: [Healeys] Auxiliary electric
                    fan<o:p></o:p></p>
                </div>
                <p class="MsoNormal"
                  style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
                <p>Always fit a thermo-switch and a manual override
                  switch. The thermo switch should be compatible with
                  the opening temperature of the engine thermostat. The
                  thermoswitch should switch off at a temperature about
                  5 degrees C over the opening temperature of the
                  thermostat. It should switch on near 90-95 degrees C.<o:p></o:p></p>
                <p>Remember, the higher the temperature the better the
                  cooling because of an increase in Delta T.<o:p></o:p></p>
                <p>Kees Oudesluijs<o:p></o:p></p>
                <p class="MsoNormal"
                  style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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            <p class="MsoNormal" style="margin-bottom:12.0pt">_______________________________________________<br>
            </p>
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