<div dir="ltr"><div class="gmail_default" style="font-size:small">Before you guys go off in search of the "correct" 15-tooth gear, you should consider other sources of error in your speed indication. In stock form, the Smiths-Jaeger speedo is pretty linear, but it has an indicating error due to the fact that the indicating pointer is unbalanced. This unbalance causes the speedo to read low (because it's lifting the weight of the pointer) for the first half of its rotation (0 - 70 MPH) and to read high for the second half (downhill from 70 MPH). I balanced my pointer by coiling up a short length of solder and placing it in the base of the pointer to counter the weight of the pointer. Just a rough balance is fine. I then calibrated the speedo against GPS. The calibration is done by just twisting the needle. The needle is spring-loaded against the stop so the zero point stays fixed.
The speedo is now accurate to better that 1 MPH at up to 80 MPH. That's with 185-70X13 tires and a 16-tooth gear. Of course, the ultimate test of calibration is to check the odometer calibration. I haven't done that, but you don't get speeding tickets for odometer errors.</div><div class="gmail_default" style="font-size:small"><br></div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr">Will - 382001570 <br><a href="mailto:Tigers@embarqmail.com" target="_blank">Tigers@embarqmail.com</a></div></div></div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Jun 7, 2021 at 9:06 AM Larry Mayfield <<a href="mailto:drmayf@mayfco.com">drmayf@mayfco.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div lang="EN-US" style="overflow-wrap: break-word;"><div class="gmail-m_-6379216603804064978WordSection1"><p class="MsoNormal">So I logged on to Kee’s web site and checked the parts out. The speedo gear is 15 bucks, a keeper is 4.50 for just about 20 bucks. Then Just for chuckles I out those into a cart with my zip code. Shipping prices are bat sh*t. 18 bucks for standard shipping, up to 96 bucks for hurry up. What I called a standard rate for shipping was 40 bucks. This pat weighs less than a standard envelope… Sure glad I have my OEM one. <u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">Speedo gears, on cars driven so little, are likely to last near forever. Would it be worth making 15T ones to fit the 2.88: gear set with the small diameter size tires? Likely not. As mentioned before, a + 1 tire size might be enough for the ratio discrepancy (6%), and that is probably good enough. <u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">I am good to go, …<u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">Mayf<u></u><u></u></p><p class="MsoNormal">TWFS<u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p><div><div style="border-right:none;border-bottom:none;border-left:none;border-top:1pt solid rgb(225,225,225);padding:3pt 0in 0in"><p class="MsoNormal"><b>From:</b> Tigers <<a href="mailto:tigers-bounces@autox.team.net" target="_blank">tigers-bounces@autox.team.net</a>> <b>On Behalf Of </b>Donald Antilla<br><b>Sent:</b> Sunday, June 6, 2021 5:42 PM<br><b>To:</b> Jerry Christopherson <<a href="mailto:JCMC2006@suddenlink.net" target="_blank">JCMC2006@suddenlink.net</a>>; Tiger Autox <<a href="mailto:TIGERS@AUTOX.TEAM.NET" target="_blank">TIGERS@AUTOX.TEAM.NET</a>><br><b>Subject:</b> Re: [Tigers] 15 tooth<u></u><u></u></p></div></div><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal"><span style="font-size:16pt;font-family:Arial,sans-serif">David Kee toploaders has a 16 tooth gear. That might be “Close enough for Government Work” as my dad used to say.<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:16pt;font-family:Arial,sans-serif"><a href="http://4speedtoploaders.com/store/speedometergears.html" target="_blank">http://4speedtoploaders.com/store/speedometergears.html</a><u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:16pt;font-family:Arial,sans-serif"><u></u> <u></u></span></p><div style="border-right:none;border-bottom:none;border-left:none;border-top:1pt solid rgb(181,196,223);padding:3pt 0in 0in"><p class="MsoNormal"><b><span style="font-size:12pt;color:black">From: </span></b><span style="font-size:12pt;color:black">Tigers <<a href="mailto:tigers-bounces@autox.team.net" target="_blank">tigers-bounces@autox.team.net</a>> on behalf of Jerry Christopherson <<a href="mailto:JCMC2006@suddenlink.net" target="_blank">JCMC2006@suddenlink.net</a>><br><b>Date: </b>Sunday, June 6, 2021 at 7:26 PM<br><b>To: </b>Tiger Autox <<a href="mailto:TIGERS@AUTOX.TEAM.NET" target="_blank">TIGERS@AUTOX.TEAM.NET</a>><br><b>Subject: </b>[Tigers] 15 tooth<u></u><u></u></span></p></div><div><p class="MsoNormal"><u></u> <u></u></p></div><p class="MsoNormal"><span style="font-size:14pt;font-family:Arial,sans-serif">Just had an idea, thought I would throw it out there in Tiger land. Any reason someone that has a 3-D printer couldn’t make a 15 tooth speedometer gear for the Tiger?? Could sell a bunch??</span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:14pt;font-family:Arial,sans-serif"> </span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:14pt;font-family:Arial,sans-serif">Jerry Christopherson</span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:14pt;font-family:Arial,sans-serif">9473187</span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:14pt;font-family:Arial,sans-serif">TAC insp. #58</span><u></u><u></u></p><p class="MsoNormal">_______________________________________________ <a href="mailto:tigers@autox.team.net" target="_blank">tigers@autox.team.net</a> Donate: <a href="http://www.team.net/donate.html" target="_blank">http://www.team.net/donate.html</a> Archive: <a href="http://www.team.net/pipermail/tigers" target="_blank">http://www.team.net/pipermail/tigers</a> <a href="http://autox.team.net/archive" target="_blank">http://autox.team.net/archive</a> Unsubscribe: <a href="http://autox.team.net/mailman/options/tigers/fast427@sbcglobal.net" target="_blank">http://autox.team.net/mailman/options/tigers/fast427@sbcglobal.net</a> <u></u><u></u></p></div></div>_______________________________________________<br>
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