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Re: [Healeys] Rough running

To: healeys@autox.team.net
Subject: Re: [Healeys] Rough running
From: Bob Spidell via Healeys <healeys@autox.team.net>
Date: Thu, 12 Nov 2020 08:49:24 -0800
Delivered-to: mharc@autox.team.net
Delivered-to: healeys@autox.team.net
References: <1260923054.4685354.1605194803811.ref@mail.yahoo.com> <1260923054.4685354.1605194803811@mail.yahoo.com> <BYAPR15MB22133C3E7CA87A68478ADE52A5E70@BYAPR15MB2213.namprd15.prod.outlook.com>
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Yup. My BJ8 does the same, but I haven't driven the BN2 enough to say it 
does too (I presume it does/will).

You said 'would not restart,' as in it would crank, but not fire, or 
wouldn't crank? When a marginal starter gets heat-soaked they often 
won't crank the engine as fast which, of course, makes starting more 
difficult. Same with a heat-soaked, marginal fuel pump; it might not 
pump well enough to (at least partly) overcome cavitation in the fuel line.

Bob


On 11/12/2020 8:12 AM, WILLIAM B LAWRENCE via Healeys wrote:
> Sounds like the standard, factory correct Healey vapor lock. When the 
> engine is turned off residual heat soaks out of the engine and boils 
> the fuel in the float bowls. Try cooling the float bowls with a spray 
> of water or a wet rag. If that solves it you know the problem, 
> although not necessarily the solution.
>
> Bill Lawrence
> BN1 #554
> ------------------------------------------------------------------------
> *From:* Healeys <healeys-bounces@autox.team.net> on behalf of Keith 
> Pennell via Healeys <healeys@autox.team.net>
> *Sent:* Thursday, November 12, 2020 3:26 PM
> *To:* healeys@autox.team.net <healeys@autox.team.net>
> *Subject:* [Healeys] Rough running
> Two days ago I took the BJ8 out for its every-four-month exercise. 
>  Just as before it ran beautifully for the first 8 or so miles then 
> began to develop a miss.  Temp gauge around 180 and ambient temp 80-82 
> F.  When I stopped for some photo taking it would not restart (as I 
> was afraid it would).  Temp gauge above 220.  After a 20 minute 
> cooling off and allowing the temp to drop below 200 it reluctantly 
> restarted, still with a miss, and I hurried on home.
> Any thoughts on what is the cause of this behavior?
>


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    Yup. My BJ8 does the same, but I haven't driven the BN2 enough to
    say it does too (I presume it does/will).<br>
    <br>
    You said 'would not restart,' as in it would crank, but not fire, or
    wouldn't crank? When a marginal starter gets heat-soaked they often
    won't crank the engine as fast which, of course, makes starting more
    difficult. Same with a heat-soaked, marginal fuel pump; it might not
    pump well enough to (at least partly) overcome cavitation in the
    fuel line.<br>
    <br>
    Bob<br>
    <br>
    <br>
    <div class="moz-cite-prefix">On 11/12/2020 8:12 AM, WILLIAM B
      LAWRENCE via Healeys wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:BYAPR15MB22133C3E7CA87A68478ADE52A5E70@BYAPR15MB2213.namprd15.prod.outlook.com">
      <meta http-equiv="Content-Type" content="text/html;
        charset=windows-1252">
      <div>Sounds like the standard, factory correct Healey vapor lock.
        When the engine is turned off residual heat soaks out of the
        engine and boils the fuel in the float bowls. Try cooling the
        float bowls with a spray of water or a wet rag. If that solves
        it you know the problem, although not necessarily the solution.</div>
      <div><br>
      </div>
      <div>Bill Lawrence</div>
      <div>BN1 #554</div>
      <hr style="display:inline-block;width:98%" tabindex="-1">
      <div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt"
          face="Calibri, sans-serif" color="#000000"><b>From:</b>
          Healeys <a class="moz-txt-link-rfc2396E" 
href="mailto:healeys-bounces@autox.team.net";>&lt;healeys-bounces@autox.team.net&gt;</a>
 on behalf of
          Keith Pennell via Healeys <a class="moz-txt-link-rfc2396E" 
href="mailto:healeys@autox.team.net";>&lt;healeys@autox.team.net&gt;</a><br>
          <b>Sent:</b> Thursday, November 12, 2020 3:26 PM<br>
          <b>To:</b> <a class="moz-txt-link-abbreviated" 
href="mailto:healeys@autox.team.net";>healeys@autox.team.net</a>
          <a class="moz-txt-link-rfc2396E" 
href="mailto:healeys@autox.team.net";>&lt;healeys@autox.team.net&gt;</a><br>
          <b>Subject:</b> [Healeys] Rough running</font>
        <div> </div>
      </div>
      <div>
        <div style="color:black; font:10pt arial">Two days ago I took
          the BJ8 out for its every-four-month exercise.  Just as before
          it ran beautifully for the first 8 or so miles then began to
          develop a miss.  Temp gauge around 180 and ambient temp 80-82
          F.  When I stopped for some photo taking it would not restart
          (as I was afraid it would).  Temp gauge above 220.  After a 20
          minute cooling off and allowing the temp to drop below 200 it
          reluctantly restarted, still with a miss, and I hurried on
          home.
          <div>Any thoughts on what is the cause of this behavior?  </div>
        </div>
      </div>
      <br>
    </blockquote>
    <br>
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