Re: Noisey speedo
The rotating magnet is a relatively close fit to the drag cup that is attached to the needle & spring. On older instruments with some wear on the bearings, the cup can drag against the magnet until things get warmed up and expanded to normal size. The bushings can also get noisy when they have been dry too long. Many of these old units have an oil wick that can be accessed and re-oiled if you know where to look for it.
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