Mines an Import and has "apparently" been converter to kmph but its really vague. When I go up the range it seems ok but coming down I can nearly be walking but my speedo says 35. It does this at other speeds to. Bit quirky? And dangerous for the licence

had a cortina that did that once, it had teeth missing from the speedo cable end, maybe that or the cable not fitted properly

Did it stick at various speeds?

Does a Z have a speeo cable? I thought it was something to do with electronic pulses??

yes it did stick at various speeds.

 

I dont know if zeds have cables as have only had mine a few weeks, but thought would offer the info in case it helped

No the speed it detected from a speed sensor on the gearbox which sends pulses to the speedo.

 

Stuart

Cool, im not as daft as I look!!:D

guess that u would have to take the speed converter out first .....

 

then either sensor in gear box or new clocks .......

 

then again it could be something simple like a corroded connector on the gear box