Calibration can be done. I had mine calibrated after fitting a overdrive
transmission. A local shop, which specializes in gauge repair, as well as
cruise controls did the job. They put the car on a roller.
Alternately, there is an outfit on the Monster List which does gauge
recalibration and repair via mail order. I spoke with them. They provide
you with instructions to perform a road test, the results of which you must
supply when you return the unit. Cost for either option was about the same,
around $120.
Regards,
Chris Delling
> -----Original Message-----
> From: owner-mgs@autox.team.net [mailto:owner-mgs@autox.team.net]On
> Behalf Of imscience@juno.com
> Sent: Sunday, August 23, 1998 4:10 PM
> To: mgs@autox.team.net
> Subject: speedometers
>
>
> My '80 LE MGB speedo has both KPH and MPH on the dial. Never gave it a
> thought.
> However, it reads consistently 10% high, based on mile markers and the
> portable police radar speed displays (LOVE those things! great for
> competitions!) Anybody know how to calibrate a speedometer? (yes,
> everything like wheels and tyres are stock sizes) I know, I know, I
> don't need to if I know the error, but it still bugs me.
>
>
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