Speedo problem

[rocket]

On the way back from Le Mans the mileometer on my speedo got stuck on 19,999 miles. Someone suggested that if you take the car to 150 mph that this can sometimes free up the cogs to get it working again. Sounds like a bit of an old wives tale, but decided to give it a go anyway. Subsequently got to about 170 mph (on a secret private test track in Normandy of course) and although the needle went a bit wild it did not turn over to 20,000 miles.

So, anyone else have any ideas? Can it be freed up manually, or do I need a new clock? If it needs a new clock, would a dealer wind it on to the current mileage, as I would rather not start from zero again?

Thanks for any pointers.

Neil

[rocket]

Thanks for the advice folks. I've tried tapping the speedo and resetting the trip, but worth another go I guess. Hadn't thought about the reversing trick...will give that a go as well!

Cheers.