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Re: [Healeys] Question concerning BJ8 transmission problem

To: healeys@autox.team.net
Subject: Re: [Healeys] Question concerning BJ8 transmission problem
From: Kees Oudesluijs via Healeys <healeys@autox.team.net>
Date: Tue, 18 Apr 2023 14:30:22 +0200
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On these old cars double declutch when shifting down and take your time 
shifting up with a small pause in neutral, less than half a second will 
do, just to match the revs. This will keep your synchro's alive. Just 
treat it as a non-synchro box. I am so used to it that I also do it on 
my more modern daily driver.

Kees Oudesluijs



Op 18-4-2023 om 13:26 schreef rfbegani@gmail.com:
>
> Alan, thanks for reminding me about down shifting my poor old still 
> working fine AH gearbox.
>
> Bob Begani BJ8 67
>
> *From:* Healeys <healeys-bounces@autox.team.net> *On Behalf Of *Alan 
> Seigrist via Healeys
> *Sent:* Tuesday, April 18, 2023 4:51 AM
> *To:* BJ8Healeys <sbyers@ec.rr.com>
> *Cc:* healeys@autox.team.net
> *Subject:* Re: [Healeys] Question concerning BJ8 transmission problem
>
> Steve -
>
> As a general rule, I never bother downshifting in the BJ8 box except 
> from 4th to 3rd, anything less you are better off using the brakes 
> because brake pads are way cheaper and easier to replace than synchro 
> rings or a clutch.  Of course this means you have to brake 
> intelligently (esp. going downhill) and not burn em.
>
> Another thing to consider other than a worn synchro is if the throwout 
> bearing is worn, you'll have a tendency to grind various gears.
>
> Best,
>
> Alan
>
> On Mon, Apr 17, 2023 at 9:08â?¯PM BJ8Healeys via Healeys 
> <healeys@autox.team.net> wrote:
>
>     Hello, Healeyphiles â??
>
>     I received the message below from a BJ8 owner.  Iâ??m passing it on
>     to see if anyone has any thoughts or advice about the problem.
>
>     Thanks!
>
>     Steve Byers
>
>     BJ8 Registry
>
>     AHCA Delegate at Large
>
>     Havelock, NC  USA
>
>     My question for you on my transmission rebuilt is when I was
>     downshifting from third gear to second the gears were grinding I
>     was always having to double clutch to get it in the second gear. I
>     have replaced just about every part in the gearbox including the
>     second gear which I thought was the problem as the synchro was
>     bottoming out or touching the face of gear it was well worn. Went
>     yesterday for my first test drive and all of the gears worked
>     perfectly and shifted very smoothly but when I try to downshift
>     from third to second it grinds terribly I had to come to a
>     complete stop to be able to shift it into second gear. It shifts
>     from 1st to 2nd no problem third and fourth gears work very well
>     as does reverse. Do you have any suggestions? I couldnâ??t find
>     anything on the tolerances between the gears would you have access
>     to some kind of chart or spec sheet?  My other thought was the
>     plunger in the sliding hub might not be engaging on the first
>     motion shaft. Any thoughts or ideas for me to try!
>
>     I would certainly appreciate any help you might be able to provide!
>
>     _______________________________________________
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    <p>On these old cars double declutch when shifting down and take
      your time shifting up with a small pause in neutral, less than
      half a second will do, just to match the revs. This will keep your
      synchro's alive. Just treat it as a non-synchro box. I am so used
      to it that I also do it on my more modern daily driver.</p>
    <p>Kees Oudesluijs</p>
    <p><br>
    </p>
    <p><br>
    </p>
    <div class="moz-cite-prefix">Op 18-4-2023 om 13:26 schreef
      <a class="moz-txt-link-abbreviated" 
href="mailto:rfbegani@gmail.com";>rfbegani@gmail.com</a>:<br>
    </div>
    <blockquote type="cite"
      cite="mid:016701d971e8$ac9222f0$05b668d0$@gmail.com">
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      <div class="WordSection1">
        <p class="MsoNormal"><span
            
style="font-size:16.0pt;font-family:&quot;Arial&quot;,sans-serif">Alan,
            thanks for reminding me about down shifting my poor old
            still working fine AH gearbox.  <o:p></o:p></span></p>
        <p class="MsoNormal"><span
            
style="font-size:16.0pt;font-family:&quot;Arial&quot;,sans-serif"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span
            
style="font-size:16.0pt;font-family:&quot;Arial&quot;,sans-serif">Bob
            Begani BJ8 67<o:p></o:p></span></p>
        <p class="MsoNormal"><span
            
style="font-size:16.0pt;font-family:&quot;Arial&quot;,sans-serif"><o:p> </o:p></span></p>
        <div style="border:none;border-top:solid #E1E1E1
          1.0pt;padding:3.0pt 0in 0in 0in">
          <p class="MsoNormal"><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>
 <b>On Behalf Of </b>Alan
            Seigrist via Healeys<br>
            <b>Sent:</b> Tuesday, April 18, 2023 4:51 AM<br>
            <b>To:</b> BJ8Healeys <a class="moz-txt-link-rfc2396E" 
href="mailto:sbyers@ec.rr.com";>&lt;sbyers@ec.rr.com&gt;</a><br>
            <b>Cc:</b> <a class="moz-txt-link-abbreviated" 
href="mailto:healeys@autox.team.net";>healeys@autox.team.net</a><br>
            <b>Subject:</b> Re: [Healeys] Question concerning BJ8
            transmission problem<o:p></o:p></p>
        </div>
        <p class="MsoNormal"><o:p> </o:p></p>
        <div>
          <p class="MsoNormal">Steve -<br>
            <br>
            As a general rule, I never bother downshifting in the BJ8
            box except from 4th to 3rd, anything less you are better off
            using the brakes because brake pads are way cheaper and
            easier to replace than synchro rings or a clutch.  Of course
            this means you have to brake intelligently (esp. going
            downhill) and not burn em.<br>
            <br>
            Another thing to consider other than a worn synchro is if
            the throwout bearing is worn, you'll have a tendency to
            grind various gears.<br>
            <br>
            Best,<o:p></o:p></p>
          <div>
            <p class="MsoNormal"><o:p> </o:p></p>
          </div>
          <div>
            <p class="MsoNormal">Alan<o:p></o:p></p>
          </div>
        </div>
        <p class="MsoNormal"><o:p> </o:p></p>
        <div>
          <div>
            <p class="MsoNormal">On Mon, Apr 17, 2023 at 9:08â?¯PM
              BJ8Healeys 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:<o:p></o:p></p>
          </div>
          <blockquote style="border:none;border-left:solid #CCCCCC
            1.0pt;padding:0in 0in 0in
            6.0pt;margin-left:4.8pt;margin-right:0in">
            <div>
              <div>
                <div>
                  <p class="MsoNormal"
                    
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Hello,
                    Healeyphiles â??<o:p></o:p></p>
                  <p class="MsoNormal"
                    
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
                  <p class="MsoNormal"
                    style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I
                    received the message below from a BJ8 owner.  Iâ??m
                    passing it on to see if anyone has any thoughts or
                    advice about the problem.<o:p></o:p></p>
                  <p class="MsoNormal"
                    
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
                  <p class="MsoNormal"
                    
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Thanks!<o:p></o:p></p>
                  <p class="MsoNormal"
                    
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Steve
                    Byers <o:p></o:p></p>
                  <p class="MsoNormal"
                    
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">BJ8
                    Registry<o:p></o:p></p>
                  <p class="MsoNormal"
                    
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">AHCA
                    Delegate at Large<o:p></o:p></p>
                  <p class="MsoNormal"
                    
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Havelock,
                    NC  USA<o:p></o:p></p>
                  <p class="MsoNormal"
                    
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
                  <p class="MsoNormal"
                    
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
                  <p class="m8850912635173650446msoplaintext">My
                    question for you on my transmission rebuilt is when
                    I was downshifting from third gear to second the
                    gears were grinding I was always having to double
                    clutch to get it in the second gear. I have replaced
                    just about every part in the gearbox including the
                    second gear which I thought was the problem as the
                    synchro was bottoming out or touching the face of
                    gear it was well worn. Went yesterday for my first
                    test drive and all of the gears worked perfectly and
                    shifted very smoothly but when I try to downshift
                    from third to second it grinds terribly I had to
                    come to a complete stop to be able to shift it into
                    second gear. It shifts from 1st to 2nd no problem
                    third and fourth gears work very well as does
                    reverse. Do you have any suggestions? I couldnâ??t
                    find anything on the tolerances between the gears
                    would you have access to some kind of chart or spec
                    sheet?  My other thought was the plunger in the
                    sliding hub might not be engaging on the first
                    motion shaft. Any thoughts or ideas for me to try! 
<o:p></o:p></p>
                  <p class="m8850912635173650446msoplaintext">I would
                    certainly appreciate any help you might be able to
                    provide!<o:p></o:p></p>
                  <p class="MsoNormal"
                    
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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