Buses with 'stuck' speedo & tach needles

[TheHubbardBus]

I keep finding buses for sale with speedometer and/or tach needles stuck somewhere within their range when the bus is obviously stationary and not running.


Why is this apparently so common? What's the usual cause? Any cause for concern? Could it be a sign of tampering / rolling back the odo?

o

[o1marc]

The needles bounce when they are shut off, they don't rest at 0 when not running. Because they are electric and not mechanical nothing takes them to 0 and holds them there.

[TheHubbardBus]

Coolio. Thanks for the explanation, Marc.

[o1marc]

Watch them when you turn the on, they probably peg the other end of the sweep, before settling at actual numbers.