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Re: [Mgs] New to list

To: <rrengineer.mike@att.net>, <mgs@autox.team.net>
Subject: Re: [Mgs] New to list
From: PaulHunt73 via Mgs <mgs@autox.team.net>
Date: Tue, 24 Dec 2019 08:30:46 -0000 HXw2gObXp97w6bJRUYYMe5GiCAy2ZpKCnL8+NRYfLBMERFmQ1BRdJadj9QGATl3O0Ek4gjjXuKHigcrwMA2+HRt139rzH2rT+U4=
Delivered-to: mharc@autox.team.net
Delivered-to: mgs@autox.team.net
References: <1279289359.3069736.1577139759332.ref@mail.yahoo.com> <1279289359.3069736.1577139759332@mail.yahoo.com>
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Tachometer problem is easy - the earth connection to the tach is =
missing.  With the panel lights not powered it can 'see' an earth via =
its panel light and via the panel light wiring to other instruments and =
their earths.  With the panel lights powered that 'earth' become 12v.

PaulH.
  ----- Original Message -----=20
  ...
    The bugaboo I encountered on the way home from buying this car was =
the tachometer.  It would shut off when you turn on the headlights.  If =
you turn off the panel lights, it comes back on.  Not looking forward to =
figuring this one out.
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<DIV><FONT size=3D2>Tachometer problem is easy - the earth connection to =
the tach=20
is missing.&nbsp; With the panel lights not powered it can 'see' an =
earth via=20
its panel light and via the panel light wiring to other =
instruments&nbsp;and=20
their earths.&nbsp; With the panel lights powered that 'earth' become=20
12v.</FONT></DIV>
<DIV><FONT size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2>PaulH.</FONT></DIV>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; =
PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px">
  <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
  <DIV=20
  style=3D"FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: =
black"><B>...</B></DIV>
  <DIV id=3DyMail_cursorElementTracker_1577139254389>&nbsp; The bugaboo =
I=20
  encountered on the way home from buying this car was the =
tachometer.&nbsp; It=20
  would shut off when you turn on the headlights.&nbsp; If you turn off =
the=20
  panel lights, it comes back on.&nbsp; Not looking forward to figuring =
this one=20
  out.</DIV></BLOCKQUOTE></BODY></HTML>

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