[Rovernet] bouncing P5 speedo

[magnet at ican.net]

Hi Gord,

In my experience, re-lubricating the cable with Molyslip or graphite in 
heavy oil usually helps.  Disconnect the cable from the speedo head, 
pull out the core, apply lube and feed it back into the sheath.  I don't 
know if the P5 uses a right-angle gearbox at the speedo end like the P6, 
but if it does, lubricate this also.  But sometimes a new cable is the 
only answer.

Another possibility if you have a Smiths (or British Jaeger) speedo: In 
these, the mileage counter is worked by a little pawl-and-ratchet 
arrangement.  If this gets stiff, it puts an increased load on the 
speedo drive while the pawl is trying to push the ratchet wheel around 
one notch (which moves the 1/10 mile wheel), and eases the load when the 
pawl is withdrawing.  This puts a much lower frequency flicker on the 
speedo needle, and not quite so kangaroo-like.  Again, lubrication is 
the remedy.

Hope this helps.

Cheers,

-- Bill Daddis

=====================

On 21-Apr-2024 8:16 p.m., Gordon Reddy via Rovernet wrote:
> Hey Rovermaniacs,
>    My P5's speedo is acting like a kangaroo on amphetamines, how do I 
> approach this issue (and don't say quietly, with a large net).
> Cheers,
> Gord
>
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