[Healeys] speedo stuck at 78 MPH

[Roger Grace]

 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 <healeys at autox.team.net>
wrote:

> 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
>       _______                                  _______
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> 1967 MGB  [image: MG]
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