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Re: [Healeys] Plugs

To: healeys@autox.team.net
Subject: Re: [Healeys] Plugs
From: Bob Spidell <bspidell@comcast.net>
Date: Sun, 19 Mar 2023 09:33:46 -0700
Delivered-to: mharc@autox.team.net
Delivered-to: healeys@autox.team.net
References: <000001d959b9$ad626970$08273c50$@alexarevel.plus.com> <33b361bb-5eb4-14b4-3ca0-ff6204782fdf@comcast.net> <003001d95a5a$99195130$cb4bf390$@sympatico.ca> <CAPTa0B4d9zNT-K9RtCorKiYdoL_w4fP5S3PkMRXuPVKiDUtSYA@mail.gmail.com> <1679235920998.708164.59b8804daed6b02e3e6e9e5f38a0a4b916adc18a@spica.telekom.de>
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Josef, you're nothing if not consistent.


On 3/19/2023 7:25 AM, josef-eckert--- via Healeys wrote:
>
> I do not care what kind of noices arein nearby vehicles.
>
> -----Original-Nachricht-----
>
> Betreff: Re: [Healeys] Plugs
>
> Datum: 2023-03-19T15:15:37+0100
>
> Von: "Michael Oritt" <michael.oritt@gmail.com>
>
> An: "m.g.sharp@sympatico.ca" <m.g.sharp@sympatico.ca>
>
> "I always thought the resistor plugs were to introduced to suppress 
> interference with car radios, which I donâ??t have,"
> -----------------------------------------------------
> They also eliminate your ignition's noise in nearby vehicles.
> Best--Michael Oritt
>
> On Sun, Mar 19, 2023 at 8:11â?¯AM m.g.sharp--- via Healeys 
> <healeys@autox.team.net> wrote:
>
>     I do exactly what Bob does with my BT7 except I use a non-resistor
>     plug â?? Champion N12YC and 0.028â?? gap.  I too use a Lucas Sports
>     coil.  I always thought the resistor plugs were to introduced to
>     supress interference with car radios, which I donâ??t have, but I am
>     happy to be corrected on that.   I think plugs are unnecessarily
>     changed too frequently.  I remove them once in a while (every few
>     years) and clean and check the gaps.  I run them until they shows
>     signs of deterioration.  I have never had a plug fail me in the
>     Healey.
>
>     Mirek
>
>     *From:*Healeys <healeys-bounces@autox.team.net> *On Behalf Of *Bob
>     Spidell
>     *Sent:* March 18, 2023 2:17 PM
>     *To:* healeys@autox.team.net
>     *Subject:* Re: [Healeys] Plugs
>
>     I've run over 150K miles on Champion plugs with nary an issue (and
>     will continue to do so); RN12YC for the BJ8 and whatever the
>     recommended is for a 100M (RN10C?). With Pertronix Ignitors in
>     both, I run slightly over 'book' value (0.025") at 0.028" and both
>     run very well (I also run stranded copper wire secondaries, so the
>     'R' is important, plus the plug caps have a resistor in them as
>     well). My one-time auto shop teacher father maintained whatever
>     spark was sufficient to ignite the mixture was adequate--mixture
>     and compression took it from there--but a larger gap induces a
>     'hotter' spark which may be beneficial with leaner mixtures and at
>     higher engine RPM (but has less margin as the electrode erodes). A
>     larger gap requires the coil to produce more secondary voltage to
>     jump the gap; a sports coil may be required to produce a
>     consistent spark. 12K miles on plugs is fine in my experience--as
>     long as the engine is in good nick--and they can be cleaned and
>     re-gapped at least once. Sandblasting is a no-no as it will pit
>     the ceramic insulator and can cause issues.
>
>     I came across a YouTube video by David Vizard where he claims E3
>     Diamond 'Split Fire' plugs produced slightly better mileage; yep,
>     E3 makes a plug for Big Healeys (6-cyl only, I think). I've heard
>     rumors that counterfeit NGK plugs are in the market.
>
>
>     On 3/18/2023 9:49 AM, Simon Lachlan via Healeys wrote:
>
>         Hereâ??s a can of worms that we havenâ??t delved into for a whileâ?¦.
>
>         So, Iâ??m trying to get all my ducks in a row for a short run
>         abroad. Car is a MkII BT7 with a DW fast road cam, 3 HD6s, big
>         bore 6 branch and 123Ignition plus a so-called Sports Coil.
>
>          1. I was looking through my library of files on Healey topics
>             and saw that we were all over the place on plug gapsâ?¦..all
>             the way up to 0.035â??. So whatâ??s the opinion there??
>          2. And which plug? Seemed to be mostly between NGKâ??s BP6ES &
>             BP5ES. Was a hold-out for their B8EGV 5627  but thatwas
>             dismissed fairly vigorously by Jeremy Welch as being way
>             OTT for normal road use.
>          3. And, I have 12,000 miles+++ as plug replacement mileage so
>             long as they still look and perform OK. Any thoughts?
>
>         Thanks, Simon
>
>

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    Josef, you're nothing if not consistent.<br>
    <br>
    <br>
    <div class="moz-cite-prefix">On 3/19/2023 7:25 AM, josef-eckert---
      via Healeys wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:1679235920998.708164.59b8804daed6b02e3e6e9e5f38a0a4b916adc18a@spica.telekom.de">
      <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
      <title></title>
      <p style="margin: 0px;"><span
style="font-family:arial,helvetica,sans-serif;font-size:10pt;color:#000000;text-decoration:none">I
          do not care what kind of noices are<span style="color:
            #222222;"> in nearby vehicles.</span><br>
        </span></p>
      <p style="margin: 0px;"><span
style="font-family:arial,helvetica,sans-serif;font-size:10pt;color:#000000;text-decoration:none"> </span></p>
      <p style="margin: 0px;"> </p>
      <p style="margin: 0px;"> </p>
      <p style="margin: 0px;">-----Original-Nachricht-----</p>
      <p style="margin: 0px;">Betreff: Re: [Healeys] Plugs</p>
      <p style="margin: 0px;">Datum: 2023-03-19T15:15:37+0100</p>
      <p style="margin: 0px;">Von: "Michael Oritt"
        <a class="moz-txt-link-rfc2396E" 
href="mailto:michael.oritt@gmail.com";>&lt;michael.oritt@gmail.com&gt;</a></p>
      <p style="margin: 0px;">An: <a class="moz-txt-link-rfc2396E" 
href="mailto:m.g.sharp@sympatico.ca";>"m.g.sharp@sympatico.ca"</a>
        <a class="moz-txt-link-rfc2396E" 
href="mailto:m.g.sharp@sympatico.ca";>&lt;m.g.sharp@sympatico.ca&gt;</a></p>
      <p style="margin: 0px;"> </p>
      <p style="margin: 0px;"> </p>
      <p style="margin: 0px;"> </p>
      <div style="position: relative; color: #000000; font: 12px
        Arial,Helvetica,sans-serif;">
        <div dir="ltr">
          <div class="gmail_default" style="color: #3333ff;"><span
              style="color: #222222;">"I always thought the resistor
              plugs were to introduced to suppress interference with car
              radios, which I donâ??t have,"</span></div>
          <div class="gmail_default" style="color: #3333ff;"><span
              style="color: 
#222222;">-----------------------------------------------------</span></div>
          <div class="gmail_default" style="color: #3333ff;"><span
              style="color: #222222;">They also eliminate your
              ignition's noise in nearby vehicles.</span></div>
          <div class="gmail_default" style="color: #3333ff;"><span
              style="color: #222222;"> </span></div>
          <div class="gmail_default" style="color: #3333ff;"><span
              style="color: #222222;">Best--Michael Oritt</span></div>
          <div class="gmail_default" style="color: #3333ff;"><span
              style="color: #222222;"> </span></div>
        </div>
        <br>
        <div class="gmail_quote">
          <div class="gmail_attr" dir="ltr">On Sun, Mar 19, 2023 at
            8:11â?¯AM m.g.sharp--- via Healeys &lt;<a
              href="mailto:healeys@autox.team.net";
              moz-do-not-send="true" 
class="moz-txt-link-freetext">healeys@autox.team.net</a>&gt;
            wrote:</div>
          <blockquote class="gmail_quote" style="margin: 0px 0px 0px
            0.8ex; border-left: 1px solid #cccccc; padding-left: 1ex;">
            <div class="msg4506245762485897014">
              <div style="overflow-wrap: break-word;" lang="EN-CA">
                <div class="m_4506245762485897014WordSection1">
                  <p class="MsoNormal">I do exactly what Bob does with
                    my BT7 except I use a non-resistor plug â?? Champion
                    N12YC and 0.028â?? gap.  I too use a Lucas Sports
                    coil.  I always thought the resistor plugs were to
                    introduced to supress interference with car radios,
                    which I donâ??t have, but I am happy to be corrected
                    on that.   I think plugs are unnecessarily changed
                    too frequently.  I remove them once in a while
                    (every few years) and clean and check the gaps.  I
                    run them until they shows signs of deterioration.  I
                    have never had a plug fail me in the Healey.</p>
                  <p class="MsoNormal"> </p>
                  <p class="MsoNormal">Mirek</p>
                  <p class="MsoNormal"> </p>
                  <div>
                    <div style="border-right: none; border-bottom: none;
                      border-left: none; border-top: 1pt solid #e1e1e1;
                      padding: 3pt 0cm 0cm;">
                      <p class="MsoNormal"><strong><span 
lang="EN-US">From:</span></strong><span
                          lang="EN-US"> Healeys &lt;<a
                            href="mailto:healeys-bounces@autox.team.net";
                            moz-do-not-send="true"
                            
class="moz-txt-link-freetext">healeys-bounces@autox.team.net</a>&gt;
                          <strong>On Behalf Of </strong>Bob Spidell<br>
                          <strong>Sent:</strong> March 18, 2023 2:17 PM<br>
                          <strong>To:</strong> <a
                            href="mailto:healeys@autox.team.net";
                            moz-do-not-send="true"
                            
class="moz-txt-link-freetext">healeys@autox.team.net</a><br>
                          <strong>Subject:</strong> Re: [Healeys] 
Plugs</span></p>
                    </div>
                  </div>
                  <p class="MsoNormal"> </p>
                  <p class="MsoNormal" style="margin-bottom: 12pt;">I've
                    run over 150K miles on Champion plugs with nary an
                    issue (and will continue to do so); RN12YC for the
                    BJ8 and whatever the recommended is for a 100M
                    (RN10C?). With Pertronix Ignitors in both, I run
                    slightly over 'book' value (0.025") at 0.028" and
                    both run very well (I also run stranded copper wire
                    secondaries, so the 'R' is important, plus the plug
                    caps have a resistor in them as well). My one-time
                    auto shop teacher father maintained whatever spark
                    was sufficient to ignite the mixture was
                    adequate--mixture and compression took it from
                    there--but a larger gap induces a 'hotter' spark
                    which may be beneficial with leaner mixtures and at
                    higher engine RPM (but has less margin as the
                    electrode erodes). A larger gap requires the coil to
                    produce more secondary voltage to jump the gap; a
                    sports coil may be required to produce a consistent
                    spark. 12K miles on plugs is fine in my
                    experience--as long as the engine is in good
                    nick--and they can be cleaned and re-gapped at least
                    once. Sandblasting is a no-no as it will pit the
                    ceramic insulator and can cause issues. <br>
                    <br>
                    I came across a YouTube video by David Vizard where
                    he claims E3 Diamond 'Split Fire' plugs produced
                    slightly better mileage; yep, E3 makes a plug for
                    Big Healeys (6-cyl only, I think). I've heard rumors
                    that counterfeit NGK plugs are in the market.<br>
                    <br>
                    <br>
                  </p>
                  <div>
                    <p class="MsoNormal">On 3/18/2023 9:49 AM, Simon
                      Lachlan via Healeys wrote:</p>
                  </div>
                  <blockquote style="margin-top: 5pt; margin-bottom:
                    5pt;">
                    <p class="MsoNormal"><span style="font-size: 12pt;
                        font-family: &amp;quot;">Hereâ??s a can of worms
                        that we havenâ??t delved into for a whileâ?¦.</span></p>
                    <p class="MsoNormal"><span style="font-size: 12pt;
                        font-family: &amp;quot;">So, Iâ??m trying to get
                        all my ducks in a row for a short run abroad.
                        Car is a MkII BT7 with a DW fast road cam, 3
                        HD6s, big bore 6 branch and 123Ignition plus a
                        so-called Sports Coil.</span></p>
                    <p class="MsoNormal"><span style="font-size: 12pt;
                        font-family: &amp;quot;"> </span></p>
                    <ol style="margin-top: 0cm;" type="1" start="1">
                      <li class="m_4506245762485897014MsoListParagraph"
                        style="margin-left: 0cm;"><span
                          style="font-size: 12pt; font-family:
                          &amp;quot;">I was looking through my library
                          of files on Healey topics and saw that we were
                          all over the place on plug gapsâ?¦..all the way
                          up to 0.035â??. So whatâ??s the opinion 
there??</span></li>
                      <li class="m_4506245762485897014MsoListParagraph"
                        style="margin-left: 0cm;"><span
                          style="font-size: 12pt; font-family:
                          &amp;quot;">And which plug? Seemed to be
                          mostly between NGKâ??s BP6ES &amp; BP5ES. Was a
                          hold-out for their B8EGV 5627</span><span
                          style="font-size: 12pt;">  but that</span><span
                          style="font-size: 12pt; font-family:
                          &amp;quot;"> was dismissed fairly vigorously
                          by Jeremy Welch as being way OTT for normal
                          road use.</span></li>
                      <li class="m_4506245762485897014MsoListParagraph"
                        style="margin-left: 0cm;"><span
                          style="font-size: 12pt; font-family:
                          &amp;quot;">And, I have 12,000 miles+++ as
                          plug replacement mileage so long as they still
                          look and perform OK. Any thoughts?</span></li>
                    </ol>
                    <p class="m_4506245762485897014MsoListParagraph"><span
                        style="font-size: 12pt; font-family: 
&amp;quot;"> </span></p>
                    <p class="m_4506245762485897014MsoListParagraph"><span
                        style="font-size: 12pt; font-family: &amp;quot;">Thanks,
                        Simon</span></p>
                    <p class="MsoNormal"> </p>
                  </blockquote>
                  <p class="MsoNormal"> </p>
                </div>
              </div>
              <br>
            </div>
          </blockquote>
        </div>
      </div>
    </blockquote>
    <br>
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