<html><head></head><body><div style="color:#000; background-color:#fff; font-family:bookman old style, new york, times, serif;font-size:16px"><div id="yui_3_16_0_ym19_1_1532621010977_67193">John, </div><div id="yui_3_16_0_ym19_1_1532621010977_67193"><br></div><div id="yui_3_16_0_ym19_1_1532621010977_67193" dir="ltr">I did use my volt meter and wiring diagram to track down the problem. I had a blown fuse that I missed on my first inspection. </div><div id="yui_3_16_0_ym19_1_1532621010977_67193" dir="ltr"><br></div><div id="yui_3_16_0_ym19_1_1532621010977_67193" dir="ltr">Dana</div><div></div><div id="yui_3_16_0_ym19_1_1532621010977_67195"> </div><div class="signature" id="yui_3_16_0_ym19_1_1532621010977_67197"><span style="font-family:tahoma, new york, times, serif;font-weight:bold;">Dana Nojima</span><br style="font-family:tahoma, new york, times, serif;font-weight:bold;"><span style="font-family:tahoma, new york, times, serif;" id="yui_3_16_0_ym19_1_1532621010977_67570">noji-1@pacbell.net</span><br style="font-family:tahoma, new york, times, serif;"><span style="font-family:tahoma, new york, times, serif;" id="yui_3_16_0_ym19_1_1532621010977_67565">510.219.6474</span></div> <div class="qtdSeparateBR"><br><br></div><div class="yahoo_quoted" style="display: block;"> <div style="font-family: bookman old style, new york, times, serif; font-size: 16px;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div dir="ltr"><font size="2" face="Arial"> On Thursday, July 26, 2018 4:26 PM, J Sandhoff <jsandhoff@gmail.com> wrote:<br></font></div> <br><br> <div class="y_msg_container"><div dir="ltr">Hi Dana,<br clear="none"><br clear="none">If you have a voltmeter, you can test for voltage between any ground<br clear="none">point (any bare metal on the body - a screw, etc), and each of the two<br clear="none">spade clips. With ignition on there should be a constant +12v (give or<br clear="none">take) on one connector and a pulsing voltage (+12 / 0 / +12 / 0...) on<br clear="none">the other. If you have +12 on one side and a constant zero on the<br clear="none">other, the regulator is bad.<br clear="none"><br clear="none">No constant +12 on one side means the problem is upstream of the<br clear="none">regulator (i.e. NOT the regulator)<br clear="none"><br clear="none">If you don't have a meter but do have a clip lead or other means to<br clear="none">short the two spade clips together, you can do that (ignition OFF),<br clear="none">then when you turn the ignition on one or both gauges should start to<br clear="none">climb (assumption: you have some gas in the tank; the engine is warm).<br clear="none">Don't leave the ignition on for more than 5 to 10 seconds. Again, if<br clear="none">the gauges move then the regulator is bad.<br clear="none"><br clear="none">You MAY be able to open the regulator and carefully clean the contacts<br clear="none">inside. But first, just try undoing the spade clips and reseating them<br clear="none">- it could just be a bad connection! (unlikely, but possible)<br clear="none"><br clear="none">-- John<br clear="none"> John F Sandhoff <a shape="rect" ymailto="mailto:jsandhoff@gmail.com" href="mailto:jsandhoff@gmail.com">jsandhoff@gmail.com</a> Sacramento, CA<br clear="none"><br clear="none"><div class="yqt1564034298" id="yqtfd97873"><br clear="none">On Tue, Jul 24, 2018 at 3:20 PM, dana nojima via Datsun-roadsters<br clear="none"><<a shape="rect" ymailto="mailto:datsun-roadsters@autox.team.net" href="mailto:datsun-roadsters@autox.team.net">datsun-roadsters@autox.team.net</a>> wrote:<br clear="none">> Hi list,<br clear="none">><br clear="none">> I've lost my temp and gas gauge @ the same time. My guess would be the<br clear="none">> voltage regulator below the steering wheel.<br clear="none">><br clear="none">> What is the best way to test for its functioning?<br clear="none">><br clear="none">> Thanks,<br clear="none">><br clear="none">> Dana<br clear="none">><br clear="none">> Dana Nojima<br clear="none">> <a shape="rect" ymailto="mailto:noji-1@pacbell.net" href="mailto:noji-1@pacbell.net">noji-1@pacbell.net</a><br clear="none">> 510.219.6474</div><br clear="none">><br clear="none">> ________________________________________<br clear="none">><br clear="none">> <a shape="rect" ymailto="mailto:datsun-roadsters@autox.team.net" href="mailto:datsun-roadsters@autox.team.net">datsun-roadsters@autox.team.net</a><br clear="none">><br clear="none">> Donate: <a shape="rect" href="http://www.team.net/donate.html" target="_blank">http://www.team.net/donate.html</a><br clear="none">> Archive: <a shape="rect" href="http://www.team.net/pipermail/datsun-roadsters" target="_blank">http://www.team.net/pipermail/datsun-roadsters</a><br clear="none">><br clear="none">> Unsubscribe:<br clear="none">> <a shape="rect" href="http://autox.team.net/mailman/options/datsun-roadsters/jsandhoff@gmail.com" target="_blank">http://autox.team.net/mailman/options/datsun-roadsters/jsandhoff@gmail.com</a><div class="yqt1564034298" id="yqtfd08831"><br clear="none">><br clear="none">><br clear="none">><br clear="none"></div></div><br><br></div> </div> </div> </div></div></body></html>