Inop Tack

[76okievette]

Is there any way to tes, with out removing the dash, to see if the circuit card behind the Tack is the problem with a inop Tack?

 

[Artsvette73]

If you have dwell tach you can hook it up to the tach filter on the engine side. Most likely it is the tach board they tend to go south.

 

[LVMYVT76]

I agree, most likely the tach board. Mine went out, replaced it. The old one had a small burnt speck on the board. It's a pretty big job to pull the tach, replacing the board is not that big of a job to do. good luck.

 

[76okievette]

Thanks, I think it will have to wait until the next scheduled dash removal.

 

[jjarrett]

how can i test my tach? i have a 76 coupe and the dash is out of it.i'd lik to know if it works before i put it all back together,the dash was out when i bought the car.thanks----john

 

[76okievette]

John thats a good question all I can say is start the car but may be some of these smart guys will have better suggestion. When I had my dash out I started the car to make sure everything worked, lights, tack, etc before I did the final install.

 

[Artsvette73]

If the car is able to run just connect the tach connector and the ground at the bottom of the tach housing. Start the engine and take a peek.