speedometer strange behaviour...

[david.avrahami@]

1987 Carrera
while driving yesterday, I observed that the speedometer was not working...I removed it and all wires were positioned solid. I drove again, and 5 minutes lated it started to work.
Today, it was not working again but woke up after driving for a while...
Any idea what is the problem here and what can be done?

[Ctopher]

And probably the odometer and trip aren’t working either. Sounds like the gear has broken or starting to disintegrate. I had the same thing happen to mine, it was off and on a couple of times before giving in. I sent mine to North Hollywood speedo. They did quick work and if you can’t stand the 15% +/- speed error you can ask them to perform a precise calibration. They will ask to confirm tire sizes, afterward I’m within 1 mph of GPS…..no 15% off as before.


CTopher

[Malcomgren]

strange tho