The original gauge had two leads the classic shows where to place one? Where does the other lead go? It's on a 55 with a 12v.
Thanks
Mike

 

The one lead goes to the sender. The other lead is connected to the G (gauges) terminal on the ignition switch along with the other two original gauges by means of shorting bars connecting the grounds on all three gauges. Of course, you need to protect them from 12 volts with a reducer.

 

The instructions say to attach the sending side to a certain terminal on the gauge cluster and mentions nothing about the other. I assumed it was a ground until it smoked when I turn the key, unles i grounded the wrong one, fortunately I checkef it before I hooked up the gauges This is why I've stuck to engines and thanies, I hate electrical,
Mike

 

OK, I'm not sure what you're doing. When you say "classic" gauges, is that a brand name?

I thought you were connecting the original gauges. Sorry.

 

Thanks, sorry I was not clear. It's a setup from classic instruments.
Mike

 

Where do the instructions tell you to put the one lead? Where does that wire go?

 

Just says to hook the sending unit to a terminal on the cluster does does not say what to with the other lead.
Mike

 

Well, the sending unit should provide the "ground" side and the other lead should go to get "power" from the ignition switch "G" (gauges) post.

 

Perhaps I just have them swapped.
Thanks, I'll try that
Mike

 

Well, don't take my word for it. Try to find instructions online if they didn't come with the unit. I have never worked with Classic Instruments.

 

Will do, just thinking that since there are two leads on the back of the original gage one must be a power lead and since there is only one on the CI unit the power must be supplied by one of the + terminals Was just hoping to get it done before I'm traveling for a couple weeks tomorrow
I will keep you updated
Thanks again
Mike

 

http://www.classicinstruments.com/us...ng_Diagram.pdf

Classic is usually pretty good about sending wiring inst. G= ground,S= sender I = Ignition, Volt gauge only has a wire to I from ignition switch