Re: Strange Speedo behaviour

[George Richardson <gprtech@domain.elided>]

Speedo cable is sticking a bit. When you stop accelerating, the tension is
released and it unwinds slightly. Try using some dry graphite at both ends of
the cable.

David Kirk wrote:

> Dear All,
>
> Over the last few times driving the Stag my eye has caught on the behaviour
> of the speedo. It seems strange and I wondered if there was a logical
> explanation. Here is what happens.
>
> >From rest, I accelerate (medium hard) through the gearbox. At say 35MPH, in
> 3rd (O/D out), I ease back on the throttle to stop accelerating. Just at
> this point, the speedo "kicks" up about 3-5MPH to say just under 40MPH, yet
> the car had stopped acceleraqting!.
>
> It almost seems as if there is some "stored lag" in the system that gets
> released when the tension in the drive train is released.
>
> FYI I have a MK1 car, with 4 speed Manual O/D and a MK1 speedo.
>
> Curiously ..... David Kirk

--
George Richardson
The Wyvern - '57 TR3, TS15559L - http://www.merlingroupinc.com/tr3.htm
The Hippogrif - '71 Stag MKI, LE8176E - soon to get a site of it's own