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Re: [Healeys] Tach question

To: healeys@autox.team.net
Subject: Re: [Healeys] Tach question
From: Kees Oudesluijs via Healeys <healeys@autox.team.net>
Date: Fri, 27 Nov 2020 17:34:24 +0100
Delivered-to: mharc@autox.team.net
Delivered-to: healeys@autox.team.net
References: <CAPAC+V6w9o6ssZCfoyGy1YehTWMVGyMUFJLPzEitMnWR9F2ZYw@mail.gmail.com>
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You can try a few things. If there is an external loop in the feed (I 
think it is usually a white or yellow wire) you may remove or add one 
loop. Another trick seems to be to add two diodes in series between coil 
and tachometer. A bit more involved but very doable as a DIY person is 
to change the print board inside:


  Smiths RVI - RVC Tachometer conversion board + calibration cable -566-

www.eBay.com nr: 380578001095

Having the tach rebuild is way more expensive so it may be worth to 
experiment a bit with the above.

Kees Oudesluijs




Op 27-11-2020 om 17:05 schreef Fred Wescoe via Healeys:
> Listers,
>
> A few days ago, on one of the lists, there was discussion of a 66 BJ8 
> electronic tach that was not reading correctly after installing a 
> Pertronix ignition setup.  I just installed the Pertronix (points 
> conversion) system and coil and now the tach does not read correctly.  
> The comments mentioned that tachs had to be rebuilt specifically for 
> the pertonics conversion.  Several places that 
> repair/rebuild/calibrate our Smiths tachometer with the Pertronix 
> ignition system were recommended.  As I put the car away for winter, I 
> would like to get the tach repaired/rebuilt/calibrated.  I have lost 
> those comments and therefore the links to those repair sources.  Can 
> anyone refer me to those services?
>
> Thanks as always for the comments and wisdom,
>
> Fred
> 66 BJ8
>
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    <p>You can try a few things. If there is an external loop in the
      feed (I think it is usually a white or yellow wire) you may remove
      or add one loop. Another trick seems to be to add two diodes in
      series between coil and tachometer. A bit more involved but very
      doable as a DIY person is to change the print board inside:</p>
    <h1 class="it-ttl" itemprop="name" id="itemTitle"><font size="-1"><span
          style="font-weight: normal;">Smiths RVI - RVC Tachometer
          conversion board + calibration cable -566-</span></font></h1>
    <p><a class="moz-txt-link-abbreviated" 
href="http://www.eBay.com";>www.eBay.com</a> nr: 380578001095</p>
    <p>Having the tach rebuild is way more expensive so it may be worth
      to experiment a bit with the above.<br>
    </p>
    <p>Kees Oudesluijs</p>
    <p><br>
    </p>
    <p><br>
    </p>
    <p><br>
    </p>
    <div class="moz-cite-prefix">Op 27-11-2020 om 17:05 schreef Fred
      Wescoe via Healeys:<br>
    </div>
    <blockquote type="cite"
cite="mid:CAPAC+V6w9o6ssZCfoyGy1YehTWMVGyMUFJLPzEitMnWR9F2ZYw@mail.gmail.com">
      <meta http-equiv="content-type" content="text/html; charset=UTF-8">
      <div dir="ltr">Listers,
        <div><br>
        </div>
        <div>A few days ago, on one of the lists, there was
          discussion of a 66 BJ8 electronic tach that was not reading
          correctly after installing a Pertronix ignition setup.  I just
          installed the Pertronix (points conversion) system and coil
          and now the tach does not read correctly.  The comments
          mentioned that tachs had to be rebuilt specifically for the
          pertonics conversion.  Several places that
          repair/rebuild/calibrate our Smiths tachometer with the
          Pertronix ignition system were recommended.  As I put the car
          away for winter, I would like to get the tach
          repaired/rebuilt/calibrated.  I have lost those comments and
          therefore the links to those repair sources.  Can anyone refer
          me to those services?   </div>
        <div><br>
        </div>
        <div>Thanks as always for the comments and wisdom,</div>
        <div><br>
        </div>
        <div>Fred</div>
        <div>66 BJ8</div>
      </div>
      <br>
      <fieldset class="mimeAttachmentHeader"></fieldset>
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