Bob Lang writes:
>The TR6 speedo is rather simple. There is a little impeller
>that spins due to cable movement. The impeller "blows" on the
>back-side of the indicator needle and the needle deflects as a
>function of how fast the cable is spinning.
It's actually a magnet spinning on the end of the cable, which drags a disc
attached to the needle around against a light spring pressure.
Richard Smith
R.G. Smith Automobile Engineering - Triumph & Alvis specialist
- British parts for British cars
- Tel: (+44) 729 823051 Fax: (+44) 729 824092
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