My speedometer works sometimes (mostly not) and jumps around when it
does work. I took the speedo out and ran it with a drill and it works
fine (right up to 100 mph, the fastest it will ever go). I then raised
the car off the ground and ran it in gear. I could hold on to the centre
cable by poking my finger into the speedo end of the cable. Since the
cable would stop moving, I suspect that the right angle drive on the
gearbox (with O/D) is bust. I haven't had the tranny cover off yet to
check it. Is the drive a toothed gear or is it a rubber wheel running on
a disk?
Vic Whitmore
76 Triumph Spitfire
Thornhill, Ontario
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