The shaft the needle it attached to, is connected to a floating cup that is driven by the magnet. as the cable turns the shaft, it spins the cup which makes the needle move. there is a spring that brings the needle back to zero.

The shaft turned by the cable turns the white geared shaft, which turns the second white geared shaft that turns the brass gear.

Charlie

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there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works