The odometer and trip meter stopped incrementing on my analogue speedo recently, although the speedo still works fine. I tried a few resets of the trip meter but no joy. So removed the speedo from the car and checked it out further and a bit of WD40 just to make sure all free. All looked ok and cogs would still rotate manually. So then I used a squared off nail and electric drill and this worked fine - speedo, trip meter and odometer all working and incrementing fine. So I put it back in the car and...... speedo works, odometer and trip meter still not incrementing. So is the cable broken ? - maybe the squared off end is not working, but if so how is the speedo still recording the speed ? thanks in advance