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re: "As the needle is stuck, it sounds like the movement/bearing is sticky."
Yep. Hence the 'tap the face of the gauge trick' (for dramatic effect,
if nothing else).
Side note: I've taken several speedos apart and actually got one or two
back together. I expected to see an alleged 'jeweled bearing,' but as
far as I could tell it was brass-on-brass (the brass needle spindle
against a brass pocket). No Swiss watch stuff.
Bob
On 6/12/2021 8:49 PM, Roger Grace via Healeys wrote:
> As the needle is stuck, it sounds like the movement/bearing is sticky.
> The hair spring should return it if OK.
> If you do decide to replace it, maybe consider a digital replacement
> that you can get built with the exact face as your current one - it
> can be tuned to be dead accurate - independent of diff or tires. The
> only issue is that there is a small lcd trip recorder. I have one on
> my BJ8 and nobody notices the lcd as the speedo face is the same as
> original and as the tacho, About 180 gbp from Speedy Cables in Wales.
> You would need to sort out a source of pulses to drive it. Absolutely
> no needle jiggering either - it is just like a modern car speedo.
> If of interest, I could send you a photo.
> rg
>
> On Fri, Jun 11, 2021 at 3:06 PM i erbs via Healeys
>
> Any ideas on why my speedo is stuck at 78 MPH? my cable spins
> freely when I remove it from the back of the speedo, but does
> not spin while moving. I have not yet jacked it up to see if my
> angle drive is shit or not. I need to replace it anyway as my
> speedo is off with new tires. It said 78 , but I was really doing
> 65., Honest officer
> Ira Erbs
> Milwaukie,OR
> Â Â _______ Â _______
> Â Â (______ \____1959 BN4____/ _______)
> (_________________________)
> Â Â Â Â Â BT7 engine and disk brakes
>
>
> 1967 MGB MG
>
> A racing car is an animal with a thousand adjustments. Mario Andretti
> Please excuse random auto corrects and misspelled words
>
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re: "As the needle is stuck, it sounds like the movement/bearing is
sticky."<br>
<br>
Yep. Hence the 'tap the face of the gauge trick' (for dramatic
effect, if nothing else).<br>
<br>
Side note: I've taken several speedos apart and actually got one or
two back together. I expected to see an alleged 'jeweled bearing,'
but as far as I could tell it was brass-on-brass (the brass needle
spindle against a brass pocket). No Swiss watch stuff.<br>
<br>
Bob<br>
<br>
<div class="moz-cite-prefix">On 6/12/2021 8:49 PM, Roger Grace via
Healeys wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CALPtYiNq-SVv_6=fTqGdnq_GCs6E0Txg7dPRGEiVfTsFMvNLAA@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="ltr">
<div>As the needle is stuck, it sounds like the movement/bearing
is sticky. The hair spring should return it if OK.</div>
<div>If you do decide to replace it, maybe consider a digital
replacement that you can get built with the exact face as your
current one - it can be tuned to be dead accurate -
independent of diff or tires. The only issue is that there is
a small lcd trip recorder. I have one on my BJ8 and nobody
notices the lcd as the speedo face is the same as original and
as the tacho, About 180 gbp from Speedy Cables in Wales. You
would need to sort out a source of pulses to drive it.
Absolutely no needle jiggering either - it is just like a
modern car speedo.</div>
<div>If of interest, I could send you a photo.</div>
<div>rg</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Fri, Jun 11, 2021 at 3:06
PM i erbs via Healeys <<a
href="mailto:healeys@autox.team.net";
moz-do-not-send="true">healeys@autox.team.net</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="ltr">Any ideas on why my speedo is stuck at 78 MPH?
my cable spins freely when I remove it from the back of the
speedo, but does not spin while moving. I have not yet
jacked it up to see if my angle drive is shit or not. I need
to replace it anyway as my speedo is off with new tires. It
said 78 , but I was really doing 65., Honest officer<br
clear="all">
<div>
<div dir="ltr">
<div dir="ltr">
<div>
<div dir="ltr">
<div>
<div dir="ltr">
<div>
<div dir="ltr">
<div>
<div dir="ltr">
<div>
<div dir="ltr">
<div>
<div dir="ltr">
<div dir="ltr">Ira Erbs
<div>Milwaukie,OR</div>
<div><span
style="font-family:"Times
New Roman",serif">Â
  _______      Â
         Â
 _______</span><br
style="font-family:"Times
New Roman",serif">
<span
style="font-family:"Times
New Roman",serif">Â
  (______ \____1959
BN4____/ _______)</span><br
style="font-family:"Times New Roman",serif">
<span
style="font-family:"Times
New Roman",serif">Â
   Â
(_________________________)</span></div>
<div>Â Â Â Â Â BT7 engine
and disk brakes</div>
<div><br>
</div>
<div><br>
</div>
<div>1967 MGB Â <img
src="http://www.britishcarspecialists.com/assets/images/MG_emblem.jpg";
alt="MG"
moz-do-not-send="true"></div>
<div><br>
</div>
<div><span
style="color:rgb(51,51,51);font-family:"Helvetica
Neue",Helvetica,Arial,sans-serif;font-size:14px">A racing car is an
animal with a thousand
adjustments. Mario
Andretti</span><br>
</div>
<div>Please excuse random
auto corrects and
misspelled words</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<br>
</blockquote>
</div>
</blockquote>
<br>
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