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Re: [TR] TR4 engine question

To: triumphs@autox.team.net
Subject: Re: [TR] TR4 engine question
From: Tony Drews <tony@tonydrews.com>
Date: Tue, 26 Feb 2019 12:54:49 -0600
Delivered-to: mharc@autox.team.net
Delivered-to: triumphs@autox.team.net
References: <1984749665.5441401.1551184442409.ref@mail.yahoo.com> <1984749665.5441401.1551184442409@mail.yahoo.com> <000601d4cde2$1ea57590$5bf060b0$@uprichard.net> <3FDDE46F-1B79-4E76-9D4D-6933EC47DE0F@flash.net>
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The ignition timing deal is more about creating hot spots when the 
engine is running.  Too much advance causes pre-ignition which can cause 
stuff to get hot enough to ignite the fuel.  One source of that could be 
a piece of the head gasket protruding into the combustion chamber.

- Tony

On 2/26/2019 10:14 AM, Wbeech@flash.net wrote:
> Same problem here with the TR3 motor in the Morgan, but not the TR3. 
>  I donâ??t see how ignition timing could affect it as it is turned off. 
>  I used to hear it was due to carbon buildup continuing to ignite 
> fuel, but that doesnâ??t fly for a fresh engine.
>
> Iâ??m going to lean the mixture a little and see if that makes any 
> difference.  Till then, Daveâ??s method of easing the clutch out seems 
> to be the accepted workaround.
>
> Bill
> TS30800L
>
> Sent from my DynaTAC 8000X
>
> On Feb 26, 2019, at 8:46 AM, Andrew Uprichard 
>
> Assuming everything else (timing, carburation) is set, do you have an 
> electric fan?  My TR3 runs on if the fan is still on when I turn the 
> ignition off.
>
> Andrew Uprichard
>
> Jackson, Michigan
>
> *From:*Triumphs [mailto:triumphs-bounces@autox.team.net] *On Behalf Of 
> *DAVID MASSEY
> *Sent:* Tuesday, February 26, 2019 7:34 AM
> *Subject:* Re: [TR] TR4 engine question
>
> First off, congratulations on your win.
>
> Secondly, do what I do.  Put the car in fourth gear and let the clutch 
> out as you switch off.  Be sure to set the brake first.  My TR6 
> diesels even with the anti-run-on valve.  So does the TR3.
>
> Dave
>
> -----Original Message-----
> Sent: Mon, Feb 25, 2019 9:41 pm
> Subject: [TR] TR4 engine question
>
> Fresh TR4 engine that does that "dieseling" thing after you turn off the
>
> key. It like it tries to keep running but with a cough and then 
> stops.  The
>
> TR6 has an anti-run on valve to help with that.  What do I treat on a TR4
>
> motor? P.S.  So proud that after 8 years putting my 4 back together stock,
>
> I won first place in the sports car group at the AACC winter national.
>
> Thanks
>
> Jim Henningsen
>
> Ocala, FL
>
> 61 TR3A
>
> 62 TR4
>
> 75 TR6
>
>
> Donate: http://www.team.net/donate.html
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    <p>The ignition timing deal is more about creating hot spots when
      the engine is running.  Too much advance causes pre-ignition which
      can cause stuff to get hot enough to ignite the fuel.  One source
      of that could be a piece of the head gasket protruding into the
      combustion chamber.</p>
    <p>- Tony<br>
    </p>
    <div class="moz-cite-prefix">On 2/26/2019 10:14 AM, <a 
class="moz-txt-link-abbreviated" 
href="mailto:Wbeech@flash.net";>Wbeech@flash.net</a>
      wrote:<br>
    </div>
    <blockquote type="cite"
      cite="mid:3FDDE46F-1B79-4E76-9D4D-6933EC47DE0F@flash.net">
      <meta http-equiv="content-type" content="text/html; charset=UTF-8">
      Same problem here with the TR3 motor in the Morgan, but not the
      TR3.  I donâ??t see how ignition timing could affect it as it is
      turned off.  I used to hear it was due to carbon buildup
      continuing to ignite fuel, but that doesnâ??t fly for a fresh
      engine.  
      <div><br>
      </div>
      <div>Iâ??m going to lean the mixture a little and see if that makes
        any difference.  Till then, Daveâ??s method of easing the clutch
        out seems to be the accepted workaround.  </div>
      <div><br>
      </div>
      <div>Bill</div>
      <div>TS30800L<br>
        <br>
        <div id="AppleMailSignature" dir="ltr">Sent from my DynaTAC
          8000X</div>
        <div dir="ltr"><br>
          On Feb 26, 2019, at 8:46 AM, Andrew Uprichard &lt;<a
            href="mailto:auprichard@uprichard.net";
            moz-do-not-send="true">auprichard@uprichard.net</a>&gt;
          wrote:<br>
          <br>
        </div>
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          <div class="WordSection1">
            <p class="MsoNormal"><span
                style="font-size:11.0pt;color:#1F497D">Assuming
                everything else (timing, carburation) is set, do you
                have an electric fan?  My TR3 runs on if the fan is
                still on when I turn the ignition off.<o:p></o:p></span></p>
            <p class="MsoNormal"><span
                style="font-size:11.0pt;color:#1F497D"><o:p> </o:p></span></p>
            <p class="MsoNormal"><span
                style="font-size:11.0pt;color:#1F497D">Andrew 
Uprichard<o:p></o:p></span></p>
            <p class="MsoNormal"><span
                style="font-size:11.0pt;color:#1F497D">Jackson, 
Michigan<o:p></o:p></span></p>
            <p class="MsoNormal"><span
                style="font-size:11.0pt;color:#1F497D"><o:p> </o:p></span></p>
            <p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;">From:</span></b><span
style="font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;">
                Triumphs [<a
                  href="mailto:triumphs-bounces@autox.team.net";
                  
moz-do-not-send="true">mailto:triumphs-bounces@autox.team.net</a>]
                <b>On Behalf Of </b>DAVID MASSEY<br>
                <b>Sent:</b> Tuesday, February 26, 2019 7:34 AM<br>
                <b>To:</b> <a href="mailto:trguy75@gmail.com";
                  moz-do-not-send="true">trguy75@gmail.com</a>; <a
                  href="mailto:Triumphs@autox.team.net";
                  moz-do-not-send="true">Triumphs@autox.team.net</a><br>
                <b>Subject:</b> Re: [TR] TR4 engine 
question<o:p></o:p></span></p>
            <p class="MsoNormal"><o:p> </o:p></p>
            <div>
              <p class="MsoNormal"><span
                  
style="font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black">First
                  off, congratulations on your win.<o:p></o:p></span></p>
            </div>
            <div>
              <p class="MsoNormal"><span
                  
style="font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black"><o:p> </o:p></span></p>
            </div>
            <div>
              <p class="MsoNormal"><span
                  
style="font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black">Secondly,
                  do what I do.  Put the car in fourth gear and let the
                  clutch out as you switch off.  Be sure to set the
                  brake first.  My TR6 diesels even with the anti-run-on
                  valve.  So does the TR3.<o:p></o:p></span></p>
            </div>
            <div>
              <p class="MsoNormal"><span
                  
style="font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black"><o:p> </o:p></span></p>
            </div>
            <div>
              <p class="MsoNormal" style="margin-bottom:12.0pt"><span
style="font-size:13.5pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black">Dave
                </span><span
                  
style="font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black"><o:p></o:p></span></p>
            </div>
            <div>
              <p class="MsoNormal"><span
                  
style="font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black"><o:p> </o:p></span></p>
            </div>
            <div>
              <p class="MsoNormal"><span
                  
style="font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black"><o:p> </o:p></span></p>
            </div>
            <div>
              <p class="MsoNormal" style="margin-bottom:12.0pt"><span
style="font-size:10.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black">-----Original
                  Message-----<br>
                  From: Jim Henningsen &lt;<a
                    href="mailto:trguy75@gmail.com";
                    moz-do-not-send="true">trguy75@gmail.com</a>&gt;<br>
                  To: 'triumphs' &lt;<a
                    href="mailto:Triumphs@autox.team.net";
                    moz-do-not-send="true">Triumphs@autox.team.net</a>&gt;<br>
                  Sent: Mon, Feb 25, 2019 9:41 pm<br>
                  Subject: [TR] TR4 engine question<o:p></o:p></span></p>
              <div>
                <p class="MsoNormal"><span
style="font-size:10.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black">Fresh
                    TR4 engine that does that "dieseling" thing after
                    you turn off the<o:p></o:p></span></p>
              </div>
              <div>
                <p class="MsoNormal"><span
style="font-size:10.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black">key. 
                    It like it tries to keep running but with a cough
                    and then stops.  The<o:p></o:p></span></p>
              </div>
              <div>
                <p class="MsoNormal"><span
style="font-size:10.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black">TR6
                    has an anti-run on valve to help with that.  What do
                    I treat on a TR4<o:p></o:p></span></p>
              </div>
              <div>
                <p class="MsoNormal"><span
style="font-size:10.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black">motor? 
                    P.S.  So proud that after 8 years putting my 4 back
                    together stock,<o:p></o:p></span></p>
              </div>
              <div>
                <p class="MsoNormal"><span
style="font-size:10.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black">I
                    won first place in the sports car group at the AACC
                    winter national.  <o:p></o:p></span></p>
              </div>
              <div>
                <p class="MsoNormal"><span
style="font-size:10.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black">Thanks<o:p></o:p></span></p>
              </div>
              <div>
                <p class="MsoNormal"><span
style="font-size:10.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black">Jim
                    Henningsen<o:p></o:p></span></p>
              </div>
              <div>
                <p class="MsoNormal"><span
style="font-size:10.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black">Ocala,
                    FL<o:p></o:p></span></p>
              </div>
              <div>
                <p class="MsoNormal"><span
style="font-size:10.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black"><o:p> </o:p></span></p>
              </div>
              <div>
                <p class="MsoNormal"><span
style="font-size:10.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black">61
                    TR3A<o:p></o:p></span></p>
              </div>
              <div>
                <p class="MsoNormal"><span
style="font-size:10.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black">62
                    TR4<o:p></o:p></span></p>
              </div>
              <div>
                <p class="MsoNormal"><span
style="font-size:10.0pt;font-family:&quot;Arial&quot;,&quot;sans-serif&quot;;color:black">75
                    TR6<o:p></o:p></span></p>
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