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Tachometer stopped working 120-130 1966

posted by  mjamgb on  Mon Jul 11 07:41 CST 2005
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last visit: Tue Sep 4 14:53 CST 2012
[RELATED]

Two types of tach. Binary and inductance.

If your ignition wire runs from the switch through a loop at the tach and then to the "+" side of the coil you have the inductance tach and it is needing a rebuild.

If you just have an "extra" wire either from the "-" or "+" side of the tach it is binary (on-off) and you should check that the wire is still attached at both ends. It may also require a rebuild if a wire has not come loose where you can get to it.

Both diagnoses assume your ignition is otherwise working properly (i.e. the car runs).

--
Mike!






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