<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=utf-8"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><style><!--
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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>I see a #10 UNF x ½” listed with the valve but not sure if that is correct.<o:p></o:p></p><p class=MsoNormal>Sunbeam Parts Lists are available online.<o:p></o:p></p><p class=MsoNormal>Check the OD of the threads – a table I have indicates #10 UNF 24 TPI OD = .190”<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>For British cars you need UNF tap and dies – SAE tap and dies will cut metal because they are slightly different.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>If you have extra bolts – I like to cut grooves down the threads to make a thread chaser to clean out the threads.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>For any stuck bolts use penetrating oil or ATF, let them soak overnight if needed.<o:p></o:p></p><p class=MsoNormal>Hope that helps<o:p></o:p></p><p class=MsoNormal>Ron Fraser<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><b>From:</b> Tigers <tigers-bounces@autox.team.net> <b>On Behalf Of </b>R Flynn via Tigers<br><b>Sent:</b> Saturday, October 10, 2020 3:13 PM<br><b>To:</b> <tigers@Autox.Team.Net> <tigers@autox.team.net><br><b>Cc:</b> R Flynn <flynnr2@gmail.com><br><b>Subject:</b> [Tigers] Bolt size for heater valve <-> pipe flange?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Does anyone happen to know the bolt size for the 2 bolts that are used between the valve itself and the pipe flange (with the mounting bracket sandwiched in between, photo below)?<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>The look like maybe 12-24, but I don’t have a tap or die to confirm that ...<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>It appears as though the leak in mine is caused because the seal between these two has perished, but so has one of the bolts! Going try replacing it with a small donut ring to see if that cures the issue.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Cheers in advance,<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Rick<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><div><p class=MsoNormal><o:p> </o:p></p></div><p class=MsoNormal><o:p> </o:p></p></div><p class=MsoNormal>-- <o:p></o:p></p><div><p class=MsoNormal>rick<br>B9471206: <a href="http://www.tigersunited.com/car_show/flynn_r/default.asp" target="_blank">http://www.tigersunited.com/car_show/flynn_r/default.asp</a><o:p></o:p></p></div></div></body></html>