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<font size="-1"><font face="Arial">Hello Steve,<br>
<br>
Neither my speedo nor tach are working well and when checked out
found it was the heads. Pricey replacements ! As my MGB GT V8
is not really original it did not take me long to find Speedhut
replacements. They have a good selection and a brilliant web
site to "build" you own gauge. Mine will be very very close to
the original but with far better performance and features. The
speedo is GPS driven - my oath - and has no connections to the
car (except for Lucas smoke to drive the light bulbs). Trouble
is that when I fit them I will no longer go from 0 to 45-55kph
in less than 3 secs with engine ticking over at 500rpm.<span
class="moz-smiley-s1"><span>:-)</span></span><br>
<img moz-do-not-send="false"
src="cid:part1.874B1DEA.D3C6D6CE@bell.net" alt="" height="110"
width="200"><br>
</font></font><br>
<div class="moz-cite-prefix">On 8/28/2018 7:27 AM, daybell7--- via
Mgs wrote:<br>
</div>
<blockquote type="cite"
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<div>Thanks, Paul. I’m checking dash ground first thing after
much good advice, especially about not assuming it’s OK.
Both indicator lights work. My tach was acting funny. The
car ran fine, but the tach never registered over 3k RPM.
Thanks for the good info, Paul and everybody else.</div>
<div><br>
</div>
<div>Steve H. <br>
</div>
<div data-signatureblock="true">
<div>Gainesville, FL</div>
<div><br>
</div>
</div>
<div style="padding-top: 5px; border-top-color: rgb(229, 229,
229); border-top-width: 1px; border-top-style: solid;">
<div><font style="line-height: 15pt; letter-spacing: 0.02em;
font-family: "Calibri", "Segoe UI",
"Meiryo", "Microsoft YaHei UI",
"Microsoft JhengHei UI", "Malgun
Gothic", "sans-serif"; font-size: 12pt;"
face=" 'Calibri', 'Segoe UI', 'Meiryo', 'Microsoft YaHei
UI', 'Microsoft JhengHei UI', 'Malgun Gothic',
'sans-serif'"><b>From:</b> <a
href="mailto:paulhunt73@virginmedia.com"
target="_parent" moz-do-not-send="true">PaulHun</a><br>
<b>Sent:</b> Tuesday, August 28, 2018 3:25 AM<br>
<b>To:</b> <a href="mailto:daybell7@aol.com"
target="_parent" moz-do-not-send="true">daybell7@aol.com</a>,
<a href="mailto:mgs@autox.team.net" target="_parent"
moz-do-not-send="true">mgs@autox.team.net</a></font></div>
</div>
<div><br>
</div>
<div dir="ltr"><font size="2">
<div><font size="2">Usually the first step would be to
bypass the dimmer rheostat, which may not be as easy on
a padded dash as on the UK dash. They usually have
double spades for each connection, with two wires in a
single spade on each connection, so it is a relatively
simple test to move one of the connections across to the
spare spade for the other connection.</font></div>
<div> </div>
<div><font size="2">Have you tested the bulbs work out of
the sockets?</font></div>
<div> </div>
<div>All the gauges should have earth wires on a 72, you
can't assume the dash is earthed. There should be a black
wire under the fixing nuts that hold them in the dash, or
could be a spade on the back of the tach case. That is
fed from a 4-way bullet connector that also feeds the
right-hand indicator tell-tale, does that work? The
left-hand is fed differently.</div>
<div> </div>
</font>
<div><font size="2">Does the tach work as it should? If so
that would appear to have a good earth and it's bulb
should work at least. Are you looking at them in low
light levels? You won't see gauge illumination if the
ambient conditions are bright.</font></div>
<div> </div>
<div><font size="2">Did you only have one bulb unscrewed when
you tested for 12v in the socket and all the other bulbs
screwed in and fitted? You need to, especially if your
test light has an LED or you use a voltmeter.</font></div>
<div> </div>
<div><font size="2">Take each socket out of the gauge and
earth it with another wire. Make sure your earth wire is
good, can your test lamp check earths as well as 12v?</font></div>
<div> </div>
<div><font size="2">PaulH.</font></div>
<div> </div>
<blockquote style="margin: 0px 0px 0px 5px; padding-right:
0px; padding-left: 5px; border-left-color: rgb(0, 0, 0);
border-left-width: 2px; border-left-style: solid;">
<div style="font: 10pt/normal arial; font-size-adjust: none;
font-stretch: normal;">----- Original Message ----- </div>
<div style="background: rgb(228, 228, 228); font:
10pt/normal arial; font-size-adjust: none; font-stretch:
normal;"><b>From:</b> <a href="mailto:mgs@autox.team.net"
target="_parent" moz-do-not-send="true">daybell7--- via
Mgs</a> </div>
<div style="font: 10pt/normal arial; font-size-adjust: none;
font-stretch: normal;"><b>To:</b> <a
href="mailto:mgs@autox.team.net" target="_parent"
moz-do-not-send="true">mgs@autox.team.net</a> </div>
<div style="font: 10pt/normal arial; font-size-adjust: none;
font-stretch: normal;"><b>Sent:</b> Monday, August 27,
2018 6:08 PM</div>
<div style="font: 10pt/normal arial; font-size-adjust: none;
font-stretch: normal;"><b>Subject:</b> [Mgs] Dash Light
Problem</div>
<div><br>
</div>
<div>The dash lights don’t work on my 1972 MGB. The trouble
lite will light when I test the sockets, but various new
bulbs won’t. Does this mean low voltage? I’ve grounded
the test light on a bolt and assume the dash is grounded.</div>
<div><br>
</div>
<div>Thanks,</div>
<div>Steve Hughes</div>
<div>Gainesville, FL<br>
</div>
<div data-signatureblock="true">
<div><br>
</div>
<div><br>
</div>
</div>
<p> </p>
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