'79-86 dash cluster help, i need to rewire the voltage and tach

[85_SS_302_Coupe]

Hey guys....i'm wondering if any of you have ever rewired the stock gauges...basically my voltage and tach haven't worked since i ditched the Duraspark and even though they're stock i'd like to get them working again. I'm about to have the speedo working again so those are the last 2 i need to take care of. Is there a way to just wire them up manually as if they're aftermarket gauges?

 

[91 HATCH]

you could wire them manually the voltage would be easy + _ hook it up
the tach im not sure about on a duraspark what distributor are you running now

 

[85_SS_302_Coupe]

Right now i'm running a Mallory Comp 9000 with the built in ignition (sweet for carbed setups). I would imagine it's just like wiring up an Autometer if you can get the wires from behind the cluster. I've got an Autogage and shift light, but i really hate having dead gauges in my dash and it's been loooong over due to be fixed.

 

[91 HATCH]

it should be one ground and the + to positive side of coil

you should check out a wiring diagram for your year car and get a few more opinions first

 

[jrichker]

I have a diagram of the tach inner workings. There is one main ground, one 12 volt switched power, Tach input & another tach ground for 8 cylinder cars. I do not have a pinout for the tach connector.