Tach inop on my 99 Outback

[gdyupngo]

I have a 99 outback with a 5.7 PCM 310hp carburated. The tach does not work. The red lights inside work but the tach needle won,t move. All other gauges work fine.

Any Ideas?
Bob (gdyupngo)

[Catdog1]

Mine is same year, though Indmar 5.7.

Tach wasn't waterproof. Got a little moisture in it about two years ago. Needle started binding at about 2000 rpm for a while, then after a few months, stopped moving.

Been running without for 2 years. Hour meter still works, though.

I think loss of motion was caused by corrosion inside in our case. Needs a new tachometer--- about $125 or so.