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re: "... I don’t recall if that wire is separate from the
distributor wire ..."<br>
<br>
It is (or should be). If the battery switch is in the 'OFF' position
it grounds the coil primary so no spark.<br>
<br>
<br>
<div class="moz-cite-prefix">On 9/28/2022 8:34 PM, Alan Seigrist
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAFBXTkK57aopOM4-+8+-59CHyryiQk_OO4i_jVW5+v-pGFvAbA@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="auto">Hi Michael -</div>
<div dir="auto"><br>
</div>
<div dir="auto">Have you tried cycling the connections on the
white wire from the ignition switch to the coil, and also from
the coil to the distributor.</div>
<div dir="auto"><br>
</div>
<div dir="auto">You might also want to try disconnecting the black
and white wire at the coil from the battery master switch - if
it’s failing you’ll get weird symptoms like this. If that wire
is disconnected the car should run no problem. I don’t recall
if that wire is separate from the distributor wire, if it isn’t
you’ll have to disconnect it from underneath the master switch
itself.</div>
<div dir="auto"><br>
</div>
<div dir="auto">Best,</div>
<div dir="auto"><br>
</div>
<div dir="auto">Alan</div>
<div><br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Thu, 29 Sep 2022 at 6:47
AM Michael Salter <<a
href="mailto:michaelsalter@gmail.com"
moz-do-not-send="true" class="moz-txt-link-freetext">michaelsalter@gmail.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left-width:1px;border-left-style:solid;padding-left:1ex;border-left-color:rgb(204,204,204)">
<div dir="ltr">
<div class="gmail_default"
style="font-family:arial,sans-serif;font-size:small">
<p class="MsoNormal" style="text-align:center;margin:0in
0in
8pt;line-height:107%;font-size:11pt;font-family:Calibri,sans-serif"
align="center"><b
style="font-family:Calibri,sans-serif"><span
style="font-size:18pt;line-height:107%;font-family:Calibri,sans-serif"><span
style="font-family:Calibri,sans-serif"></span></span></b></p>
<p class="MsoNormal" style="margin:0in 0in
8pt;line-height:107%;font-size:11pt;font-family:Calibri,sans-serif">This
problem has plagued me for over 1000 miles.<span
style="font-family:Calibri,sans-serif"></span></p>
<p class="MsoNormal" style="margin:0in 0in
8pt;line-height:107%;font-size:11pt;font-family:Calibri,sans-serif">Today
I had to drive some 200 miles and this is how it went:<span
style="font-family:Calibri,sans-serif"></span></p>
<p class="MsoNormal" style="margin:0in 0in
8pt;line-height:107%;font-size:11pt;font-family:Calibri,sans-serif">Starting
from cold I experienced a persistent and irregular
misfire.
<span style="font-family:Calibri,sans-serif"></span></p>
<p class="MsoNormal" style="margin:0in 0in
8pt;line-height:107%;font-size:11pt;font-family:Calibri,sans-serif">Pulling
the choke out made no perceivable difference.<span
style="font-family:Calibri,sans-serif"></span></p>
<p class="MsoNormal" style="margin:0in 0in
8pt;line-height:107%;font-size:11pt;font-family:Calibri,sans-serif">Power
was not much affected and the car cruised along well
in top overdrive with just regular periods of
misfiring.<span style="font-family:Calibri,sans-serif"></span></p>
<p class="MsoNormal" style="margin:0in 0in
8pt;line-height:107%;font-size:11pt;font-family:Calibri,sans-serif">Climbing
slopes really made no difference, even when full
throttle was applied for 10 - 15 seconds.<span
style="font-family:Calibri,sans-serif"></span></p>
<p class="MsoNormal" style="margin:0in 0in
8pt;line-height:107%;font-size:11pt;font-family:Calibri,sans-serif">Misfire
continued for some 90 miles with no change when the
engine was fully heated up.<span
style="font-family:Calibri,sans-serif"></span></p>
<p class="MsoNormal" style="margin:0in 0in
8pt;line-height:107%;font-size:11pt;font-family:Calibri,sans-serif">I
could really do nothing to influence the rate of the
misfire although it did seem to be slightly less
evident at low throttle
settings.<span style="font-family:Calibri,sans-serif"></span></p>
<p class="MsoNormal" style="margin:0in 0in
8pt;line-height:107%;font-size:11pt;font-family:Calibri,sans-serif">After
90 miles I stopped briefly to get fuel and upon
starting off it was quite evident that the misfire had
disappeared almost completely
and remained that way for at least 80 miles after
which it started to misfire
just a little as I came to the end of the trip.<span
style="font-family:Calibri,sans-serif"></span></p>
<p class="MsoNormal" style="margin:0in 0in
8pt;line-height:107%;font-size:11pt;font-family:Calibri,sans-serif"><u
style="font-family:Calibri,sans-serif"><span
style="font-family:Calibri,sans-serif"> </span>POSSIBLE
CAUSES</u><span
style="font-family:Calibri,sans-serif"></span></p>
<p style="margin:0in 0in 0in
0.5in;line-height:107%;font-size:11pt;font-family:Calibri,sans-serif"><span
style="font-family:Calibri,sans-serif"><span
style="font-family:Calibri,sans-serif">1.<span
style="font-style:normal;font-variant-caps:normal;font-weight:normal;font-stretch:normal;font-size:7pt;line-height:normal;font-family:"Times
New Roman"">
</span></span></span>Plugs … not like a bad plug.
The misfire seems
to be more than 1 cylinder and never came close to
being the regular beat that 1
plug misfiring produces. All the plugs have a healthy
brown/ grey appearance.<span
style="font-family:Calibri,sans-serif"></span></p>
<p style="margin:0in 0in 0in
0.5in;line-height:107%;font-size:11pt;font-family:Calibri,sans-serif"><span
style="font-family:Calibri,sans-serif"><span
style="font-family:Calibri,sans-serif">2.<span
style="font-style:normal;font-variant-caps:normal;font-weight:normal;font-stretch:normal;font-size:7pt;line-height:normal;font-family:"Times
New Roman"">
</span></span></span>Coil …<span
style="font-family:Calibri,sans-serif"> </span>In
my experience coils are very reliable but when they do
fail they tend to fail
as they warm up and the problem gets worse as the coil
warms up<span style="font-family:Calibri,sans-serif"></span></p>
<p style="margin:0in 0in 0in
0.5in;line-height:107%;font-size:11pt;font-family:Calibri,sans-serif"><span
style="font-family:Calibri,sans-serif"><span
style="font-family:Calibri,sans-serif">3.<span
style="font-style:normal;font-variant-caps:normal;font-weight:normal;font-stretch:normal;font-size:7pt;line-height:normal;font-family:"Times
New Roman"">
</span></span></span>Points … a possibility but
the dwell is set at
exactly 60 degrees and does not waver at all when the
engine is running in the
shop.<span style="font-family:Calibri,sans-serif"></span></p>
<p style="margin:0in 0in 8pt
0.5in;line-height:107%;font-size:11pt;font-family:Calibri,sans-serif"><span
style="font-family:Calibri,sans-serif"><span
style="font-family:Calibri,sans-serif">4.<span
style="font-style:normal;font-variant-caps:normal;font-weight:normal;font-stretch:normal;font-size:7pt;line-height:normal;font-family:"Times
New Roman"">
</span></span></span>Fuel pump … if the engine was
starving for fuel
because of a fuel supply issue caused by a blockage or
failing pump the problem
would get worse when the demand for fuel increased, as
in climbing a hill of
full throttle. This was absolutely not the case.</p>
<p style="margin:0in 0in 8pt
0.5in;line-height:107%;font-size:11pt;font-family:Calibri,sans-serif"><br>
</p>
<p style="margin:0in 0in 8pt
0.5in;line-height:107%;font-size:11pt;font-family:Calibri,sans-serif">Any
ideas folks?<br>
</p>
<p style="margin:0in 0in 8pt
0.5in;line-height:107%;font-size:11pt;font-family:Calibri,sans-serif"><br>
</p>
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