<html class="apple-mail-supports-explicit-dark-mode"><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">Ditto on the header tank setup. Since implementing this I have blown zero head gaskets (14 years) .<div><br></div><div> Difference in my system is I use a common cross flow radiator design available from many different suppliers. I loosely followed Tony’s write up on this radiator adaptation. <div><div>Greg<br id="lineBreakAtBeginningOfSignature"><div dir="ltr">Sent from my iPhone</div><div dir="ltr"><br><blockquote type="cite">On Jan 20, 2026, at 17:13, Michael Moore via Fot <fot@autox.team.net> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr">
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<p class="MsoNormal"><span style="font-size:11.0pt">I also put in a peacock on the top of the thermostat, just JB Welded it in, so I can bleed the air out of the system better<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"PPC Handwriting";color:#006600;mso-ligatures:standardcontextual">Mike<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:#006600;mso-ligatures:standardcontextual">Michael T. Moore, CPA<o:p></o:p></span></p>
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<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"> Fot <fot-bounces@autox.team.net>
<b>On Behalf Of </b>Chuck Gee via Fot<br>
<b>Sent:</b> Tuesday, January 20, 2026 3:27 PM<br>
<b>To:</b> of Triumph Friends <fot@autox.team.net><br>
<b>Subject:</b> [Fot] Collective wisdom<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:11.0pt">Hello all,<br>
<br>
In an effort to constantly improve the car, I’ve been looking at the cooling system on my TR4. It currently has a header tank mounted to the firewall that functions as the high spot in the system. This tank feeds the top of the radiator but doesn’t really
circulate during operation. I’ve been thinking of plumbing the feed off of the back of the head into the top of the tank so that it circulates.
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<br>
Normally this rear head feed is plumbed to the back of the water pump. In an exercise of overthinking, I’m not sure if there will be sufficient circulation since the tank is plumbed to the radiator. Does it matter? What is the collective wisdom?<br>
<br>
Here are some pictures to help illustrate.<br>
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Thanks,<br>
<br>
Chuck<o:p></o:p></span></p>
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