On 6/15/2015 10:30 AM, 'Mark in Lakewood, CO' beeser750@q.com
[diesel_mercedes] wrote:
> The speedo and odo do run off the same gear, but, the speedo uses a
> magnetic coupling with a spring to return the needle to zero, and this
> spring can be strong or weak. Or, the needle may not be set at the
> same point on the pivot in your car as it is on my car, so there may
> be differences in what my speedo says compared to yours, even when
> we're both going the same actual speed. Keep in mind that speedo
> manufacturers often calibrated the guages to display faster than the
> actual speed, for liability and maybe safety sake.
>
> The odo, on the other hand, is more directly connected to the gear in
> the transmission, though by a slip clutch.
>
> Mark in Centennial, CO
Ah, I see. Interesting, thanks.
Posted by: mobius <mobius@mainestream.us>
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