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<p>The Amp gauge should not have a shunt resistor. The rating should
be compatible with the output of the generator. Mostly 20A or 30A.
If you have an uprated generator you should replace the Amp gauge
with a 50A, 60A or 80A gauge, depending on output. Make sure the
wiring is up to these amperages. You cannot damage the gauge when
you have connected it up the wrong way. It will just read charge
instead of discharge v.v. The can be rectified by changing over
the wires. There are no pos. or neg. earth versions. An Amp gauge
is fitted in the main supply cable, usually brown, but should
exclude the starter motor circuit.<br>
</p>
<p>Most were Lucas branded but there are a few SMITHS and JAEGER
branded ones. They are all identical technically as they were all
made by the same manufacturer. <br>
</p>
<p>A much safer option is fitting a Voltage gauge which is fitted
standard in cars with an alternator. This is just wired to the
accessory terminal of the ignition switch. It will give you the
same information.<br>
</p>
<p>Kees Oudesluijs</p>
<p><br>
</p>
<p><br>
</p>
<div class="moz-cite-prefix">Op 6-11-2020 om 18:53 schreef
cjerryadams--- via Healeys:<br>
</div>
<blockquote type="cite"
cite="mid:B8CB0C38-9276-4EF8-81EA-0CACEFAD4425@yahoo.com">
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A wiring schematic would be very helpful. Moss has reprints of
factory service manuals. Also someone has large 11”x17” laminated
schematic with proper colors of wring offered.
<div>Jerry BN2<br>
<br>
<div dir="ltr">Sent from my iPhone</div>
<div dir="ltr">
<blockquote type="cite">On Nov 6, 2020, at 10:43 AM, Bob
Spidell <a class="moz-txt-link-rfc2396E" href="mailto:bspidell@comcast.net"><bspidell@comcast.net></a> wrote:<br>
<br>
</blockquote>
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<blockquote type="cite">
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Correction: My old ammeter <i>may</i> have a shunt
resistor. I don't recall one, but I haven't looked at it in
years; I'll see if I can find it in my parts stash. I didn't
install it because it appeared full current could pass
through it, and IIRC I figured 14ga wire or bigger might be
needed, and would have to be routed through the scuttle and
under the fascia.<br>
<br>
<div class="moz-cite-prefix">On 11/6/2020 7:13 AM, Bob
Spidell wrote:<br>
</div>
<blockquote type="cite"
cite="mid:b29c1e95-541c-fcf7-385a-c9644a6d3c8a@comcast.net">
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My quick take:<br>
<br>
He should:<br>
<br>
1) Join this list.<br>
<br>
2) Join at least one forum:<br>
<a class="moz-txt-link-freetext"
href="https://www.britishcarforum.com"
moz-do-not-send="true">https://www.britishcarforum.com</a><br>
<a class="moz-txt-link-freetext"
href="https://www.ahexp.com/" moz-do-not-send="true">https://www.ahexp.com/</a><br>
<br>
3) This list's own David Nock is the go-to for tough
problems and otherwise impossible-to-find parts:<br>
<a class="moz-txt-link-freetext"
href="http://www.britishcarspecialists.com"
moz-do-not-send="true">http://www.britishcarspecialists.com</a><br>
<br>
FWIW: I got an ammeter for my BJ8 years ago; it's the only
one I've seen for Healeys--it is a Smiths--but I've been
leery of installing it as it has to go in series with one
of the terminals on the voltage regulator--no shunt--and
AFAIK it carries full dis/charging current (possible major
smoke producer). If his has a shunt, it's likely an
aftermarket and he probably needs to contact the
manufacturer (but it's likely for 12V systems and,
conceivably, all he as to do is wire it backwards for pos.
gnd.). Getting the fuel gauge to work properly can be an
involved process; MGA Guru has the most comprehensive info
I've seen: <a class="moz-txt-link-freetext"
href="https://www.mgaguru.com//mgtech/fuel/fuel.htm"
moz-do-not-send="true">https://www.mgaguru.com//mgtech/fuel/fuel.htm</a><br>
<br>
Bob<br>
<br>
<br>
<br>
<div class="moz-cite-prefix">On 11/6/2020 6:26 AM,
BJ8Healeys wrote:<br>
</div>
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<div class="Section1">
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hello,
Healeyphiles –<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I
received the message below concerning issues with
a BN4. I’m forwarding it to the experts. If
anyone can help, please contact Matt Mirabile
directly. Please see the attachments for the
specific problems and questions.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Thanks!<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Steve
Byers<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">HBJ8L/36666<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">BJ8
Registry<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">AHCA
Delegate at Large<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Havelock,
NC USA<o:p></o:p></span></p>
<p class="MsoNormal"><a name="_MailEndCompose"
moz-do-not-send="true"><span
style="font-size:11.0pt;
font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></a></p>
<div>
<p class="MsoNormal" style="margin-bottom:12.0pt"><br>
Begin forwarded message:<o:p></o:p></p>
</div>
<blockquote
style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<blockquote
style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<p class="MsoNormal"
style="margin-bottom:12.0pt"><b>From:</b>
MATTHEW MIRABILE <a
class="moz-txt-link-rfc2396E"
href="mailto:matt2411@verizon.net"
moz-do-not-send="true"><matt2411@verizon.net></a><br>
<b>Date:</b> November 5, 2020 at 11:54:43 AM
MST<br>
<b>To: <a class="moz-txt-link-abbreviated"
href="mailto:c.matthews@talktalk.net"
moz-do-not-send="true">c.matthews@talktalk.net</a></b><br>
<b>Subject:</b> <b>My 100-6 1957</b><o:p></o:p></p>
</div>
</blockquote>
<blockquote
style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<p class="MsoNormal"><span
style="font-family:"Tahoma","sans-serif""></span>Pls
help. I have the car since March 2019 , I
bought it from a dealer / estate sale in
Benecia Cal. I have 3-4 tech/wiring
questions that my Flagstaff Az mechanic
could not solve. I love the car and am
disappointed that he could not solve the
problems. Can you send me a few email
addresses that I can send my issues to ? . I
have an electrical background but no one has
been able to help me. Thank you regards
Matt Mirabile. 516-941-6167. <br>
<br>
<br>
<br>
<br>
<o:p></o:p></p>
</div>
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