Hello all,

the speedometer on my car was working, but the needle was bouncing and the counters for kilometres driven hasn't counted since 2009. I took the thing apart and studied it. The cable from the automatic transmits through gears to a lever that rotates as if it should pull the counters to increase the reading on the counter. It's close, but it doesn't touch the gear.





Speedometer thingy







Speedometer thingy 1





Speedometer thingy 2

If anyone knows whats missing or what is wrong here I'd appreciate it very much. Soon I will have a series 3 xj6 donor, if I need anything I can cannibalize that.

 

So, that lever DOES appear to be broken. My explanation and choice of words may have been a bit weird.

The speedometer cable drives a set of gears which drive the lever. The lever is off-centre by a little so when the gear rotates the lever momentarily touches another gear and pushes it up slightly. This will read on the kilometre-counter as 1 kilometre.

If anybody has an idea how this rotation is transmitted to the axle with the numbers I would like a picture or exploded diagram. It's hard to explain this all but I do understand most of it now.