When I completed the restoration on my '74 Commando, the speedo was in working condition, so I only cleaned the face and replaced the glass and bezel. Sometime later, it started to wave back and forth about 2 mph marks either side of the "actual" speed - something I wasn't happy with, but tolerated. Suddenly, It's dancing wildly all over the place. Does this mean impending disaster? Have the gears gone? Will it possibly seize and do something nasty like break a cable? I should probably disconnect it now, but would be glad for advice. Though I'm confident with getting into every bit of the engine and gearbox, I've never messed with the internals of one of these instruments - is it best left to an expert? If so, who might that be? (I'm in the middle of the USA - Omaha, NE).
Thanks,
Paul.
Thanks,
Paul.