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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Tigers <tigers-bounces@autox.team.net> on behalf of Theo Smit via Tigers <tigers@autox.team.net><br>
<b>Sent:</b> Friday, August 22, 2025 8:51:32 PM<br>
<b>To:</b> gharlowe@comcast.net <gharlowe@comcast.net><br>
<b>Cc:</b> tigers@autox.team.net <tigers@autox.team.net><br>
<b>Subject:</b> Re: [Tigers] Don's follow up comment Temp Gauge Reading High</font>
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<div dir="ltr">The regulator Gary refers to is the "instrument stabilizer" that is mounted under the dash, not the regulator associated with the generator (or externally regulated alternator). </div>
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<div dir="ltr">If the instrument stabilizer is not properly grounded then the fuel and temperature gauges will read high. </div>
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<div dir="ltr">-Theo</div>
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<blockquote type="cite">On Aug 22, 2025, at 7:34 PM, gharlowe--- via Tigers <tigers@autox.team.net> wrote:<br>
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<p class="x_MsoNormal"><span style="font-size:11.0pt; font-family:"Calibri",sans-serif">Standard Smiths gauge. However, I’m running GM one-wire alternator, so not using the stock voltage regulator. – G.</span></p>
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<p class="x_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"> Gary Winblad <winbladgary@gmail.com>
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<b>Sent:</b> Friday, August 22, 2025 5:47 PM<br>
<b>To:</b> Donald Antilla <fast427@sbcglobal.net><br>
<b>Cc:</b> Stu <sabre2tgr@gmail.com>; gharlowe@comcast.net; tigers@autox.team.net<br>
<b>Subject:</b> Re: [Tigers] Don's follow up comment Temp Gauge Reading High</span></p>
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<p class="x_MsoNormal">No, the Smiths type does not require the case be grounded... except for the night light.</p>
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<p class="x_MsoNormal">The two terminals are</p>
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<p class="x_MsoNormal">1. about 10V (pulsed, 10V average from the regulator)</p>
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<p class="x_MsoNormal">2. to the sensor which completes the circuit by going to ground.</p>
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<p class="x_MsoNormal">And it doesn't matter which terminal is which.. Inside is a heating wire, non-polaized.</p>
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<p class="x_MsoNormal">Gary W.</p>
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<p class="x_MsoNormal">On Fri, Aug 22, 2025 at 2:40<span style="font-family:"Arial",sans-serif"> </span>PM Donald Antilla via Tigers <<a href="mailto:tigers@autox.team.net">tigers@autox.team.net</a>> wrote:</p>
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<p class="x_MsoNormal" style=""><span style="font-size:16.0pt; font-family:"Arial",sans-serif">Graham: Please pardon my ignorance, but will you let me know if you have a classic Smiths gauge setup, or a Ford type?</span></p>
<p class="x_MsoNormal" style=""><span style="font-size:16.0pt; font-family:"Arial",sans-serif">My comment prior about grounding the case assumes you have a Smith’s type system. In that case, you do need to ground your indicator case or- as happened to me- you
get flakey readings.</span></p>
<p class="x_MsoNormal" style=""><span style="font-size:16.0pt; font-family:"Arial",sans-serif">Don
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<p class="x_MsoNormal" style="margin-bottom:12.0pt"><b><span style="color:black">From:
</span></b><span style="color:black">Tigers <<a href="mailto:tigers-bounces@autox.team.net" target="_blank">tigers-bounces@autox.team.net</a>> on behalf of Stu <<a href="mailto:sabre2tgr@gmail.com" target="_blank">sabre2tgr@gmail.com</a>><br>
<b>Date: </b>Thursday, August 21, 2025 at 7:37</span><span style="font-family:"Arial",sans-serif; color:black"> </span><span style="color:black">PM<br>
<b>To: </b><a href="mailto:gharlowe@comcast.net" target="_blank">gharlowe@comcast.net</a> <<a href="mailto:gharlowe@comcast.net" target="_blank">gharlowe@comcast.net</a>><br>
<b>Cc: </b><a href="mailto:tigers@autox.team.net" target="_blank">tigers@autox.team.net</a> <<a href="mailto:tigers@autox.team.net" target="_blank">tigers@autox.team.net</a>><br>
<b>Subject: </b>Re: [Tigers] Temp Gauge Reading High</span></p>
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<p class="x_MsoNormal" style="">A high reading indicates there is a higher current flowing through the gauge, so a poor connection is unlikely. Is your tank near empty or full? A bad regulator might make less of a difference if the gauge is near empty.</p>
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<p class="x_MsoNormal" style="">The voltage regulator gets its ground through it's mounting screw. It would not be a first if there's a bit of corrosion under there. In a quiet place, turn on the key, don't start it, and you should be able to hear the stock
voltage regulator ticking away..</p>
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<p class="x_MsoNormal" style="">For some more hints, here's a link to my old article on gauge troubleshooting. </p>
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<p class="x_MsoNormal" style=""><a href="http://www.tigersunited.com/techtips/BrennanGauge/rt-BrennanGauge1.asp" originalsrc="http://www.tigersunited.com/techtips/BrennanGauge/rt-BrennanGauge1.asp" target="_blank">TigersUnited.com</a></p>
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<p class="x_MsoNormal" style="">Both gauges have the same innards, so you can swap leads and see what happens with the pointer angles. </p>
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<p class="x_MsoNormal" style="">Stu</p>
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<p class="x_MsoNormal" style="">On Thu, Aug 21, 2025 at 5:57<span style="font-family:"Arial",sans-serif"> </span>PM gharlowe--- via Tigers <<a href="mailto:tigers@autox.team.net" target="_blank">tigers@autox.team.net</a>> wrote:</p>
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<p class="x_MsoNormal" style="">Hey all –</p>
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<p class="x_MsoNormal" style="">It’s been quiet here so hoping to T-up an easy discussion.
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<p class="x_MsoNormal" style=""> </p>
<p class="x_MsoNormal" style="">My temp gauge is reading about 25 degrees high. I noticed it after a shop installed a new clutch, which required the engine to be removed, coolant drained, etc., but nothing that should have affected how the gauge reads. Running
on a cool day, temps were reading around 215-220 degrees. To ensure I wasn’t actually in danger of overheating, I checked various water-cooled locations with an infrared thermometer. Highest reading was right at the water neck/thermostat housing (191 deg
F). The fuel gauge is reading accurately. I understand the under-dash instrument stabilizer can affect both instruments, but in this case, only one gauge is off. I plan to check the ground to the temp gauge and clean contact points at the engine sending
unit and at the gauge. Any other suggestions? </p>
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<p class="x_MsoNormal" style="">Thanks and I hope all is well out there!</p>
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<p class="x_MsoNormal" style="">Graham Harlowe</p>
<p class="x_MsoNormal" style="">B382001466</p>
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