<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div></div><div>Yes, if the threads are decent they can be revived by making this "tool". </div><div>The 7/16x20tpi tap and die is usually included in a set as sold by Sears and others. </div><div>Dick </div><div><br>On Jun 14, 2021, at 8:00 PM, rmf3860 rmf3860 <<a href="mailto:bobfabie@gmail.com">bobfabie@gmail.com</a>> wrote:<br><br></div><blockquote type="cite"><div><div><div dir="auto">Gents.</div><div dir="auto"><br></div><div dir="auto">Thank you Dick, Janet, Richard, and Alex for responding. I assumed, incorrectly, that the bolt was a 7/16 -24, but I’ve been informed it’s 7/16-20. I’ve also been taught how to make a thread cleaning “tap”. </div><div dir="auto"><br></div><div dir="auto">Thanks to all. </div><div dir="auto"><br></div><div dir="auto">Bob</div></div><div><div dir="auto"><br></div><div><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Jun 14, 2021 at 7:53 PM Alex & Janet Thomson <<a href="mailto:aljlthomson@charter.net" target="_blank">aljlthomson@charter.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;padding-left:1ex;border-left-color:rgb(204,204,204)"><div lang="EN-US" link="blue" vlink="purple"><div><p class="MsoNormal"><span style="font-family:Calibri,sans-serif;color:rgb(31,73,125)">Bob – Check that thread size again. 7/16 SAE UNF thread is 20 Threads per Inch. There is a 7/16-24 thread size listed in the McMaster-Carr catalog but I’m not sure if that is what you want.<u style="font-family:Calibri,sans-serif"></u><u style="font-family:Calibri,sans-serif"></u></span></p><p class="MsoNormal"><span style="font-family:Calibri,sans-serif;color:rgb(31,73,125)"><u style="font-family:Calibri,sans-serif"></u> <u style="font-family:Calibri,sans-serif"></u></span></p><p class="MsoNormal"><span style="font-family:Calibri,sans-serif;color:rgb(31,73,125)"><a href="https://www.mcmaster.com/taps/general-purpose-taps-9/" style="font-family:Calibri,sans-serif" target="_blank">https://www.mcmaster.com/taps/general-purpose-taps-9/</a></span></p></div></div><div lang="EN-US" link="blue" vlink="purple"><div><p class="MsoNormal"><span style="font-family:Calibri,sans-serif;color:rgb(31,73,125)"> <u style="font-family:Calibri,sans-serif"></u><u style="font-family:Calibri,sans-serif"></u></span></p><p class="MsoNormal"><span style="font-family:Calibri,sans-serif;color:rgb(31,73,125)"><u style="font-family:Calibri,sans-serif"></u> <u style="font-family:Calibri,sans-serif"></u></span></p><p class="MsoNormal"><span style="font-family:Calibri,sans-serif;color:rgb(31,73,125)">Alex Thomson<u style="font-family:Calibri,sans-serif"></u><u style="font-family:Calibri,sans-serif"></u></span></p><p class="MsoNormal"><span style="font-family:Calibri,sans-serif;color:rgb(31,73,125)"><u style="font-family:Calibri,sans-serif"></u> <u style="font-family:Calibri,sans-serif"></u></span></p><p class="MsoNormal"><b><span style="font-size:10pt;font-family:Tahoma,sans-serif">From:</span></b><span style="font-size:10pt;font-family:Tahoma,sans-serif"> 6pack [mailto:<a href="mailto:6pack-bounces@autox.team.net" style="font-family:Tahoma,sans-serif" target="_blank">6pack-bounces@autox.team.net</a>] <b style="font-family:Tahoma,sans-serif">On Behalf Of </b>rmf3860 rmf3860<br><b style="font-family:Tahoma,sans-serif">Sent:</b> Monday, June 14, 2021 8:11 PM<br><b style="font-family:Tahoma,sans-serif">To:</b> <a href="mailto:6pack@autox.team.net" style="font-family:Tahoma,sans-serif" target="_blank">6pack@autox.team.net</a><br><b style="font-family:Tahoma,sans-serif">Subject:</b> [6pack] Cylinder Head Bolts<u style="font-family:Tahoma,sans-serif"></u><u style="font-family:Tahoma,sans-serif"></u></span></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">I’ve looked “everywhere” and cannot find a 7/16-24 thread chaser tap to clean out the block holes. I assume I’m correct about the 7/16-24 size.<u></u><u></u></p><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal">Thanks.<u></u><u></u></p></div><div><p class="MsoNormal">Bob Fabie<u></u><u></u></p></div><div><p class="MsoNormal">Fredericksburg, VA<u></u><u></u></p></div></div></div></blockquote></div></div>
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