Hi Fred,
I had this happen on a Speedometer that I Rebuilt. Not a very good job,
was it. I actually adjusted the disk too close and it was hitting the
indicator plate. I would say there is a problem inside the unit. Take
it to a shop, don't even try like I did to repair it. Took me almost a
month to figure out what was happening.
Rick
52 MGTD, 74 B, XJ12C, & Puddles (60 Frogeye)
Fred Krampits wrote:
>
> Unfortunately I was stopped at a light, my flaky speedometer had the
> needle fall forward at about 50 mph and stayed there for a few minutes
> before going back to 20. What is interesting is that the mileage is
> increasing correctly on the odometer, but when driving it goes from 40
> to 70 to 50 to 60 without any real change of speed. It was humourous to
> see it pegged out at 100.
>
> Fred
> 1963 Midget MK I 1098CG
> A real Mean Machine
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