Name that wire (1974 3.0L)

[bheff]

I'm redoing all the wiring and building a new dash. The large gauge Orange wire has never been hooked up. It goes into the large connector near the engine and doesn't come out. Any ideas?

 

[bheff]

[No message]

 

[kenny nunez]

That would have been used if your instrument panel had a amp meter . That wire was eliminated later on . Volt meters are a lot simpler.

 

[bheff]

That would have been used if your instrument panel had a amp meter . That wire was eliminated later on . Volt meters are a lot simpler.

​Its getting all new gauges. The new one is a volt meter, I would have never guessed an amp meter. Thanks.

 

[Scott Danforth]

simply look up SAE standard wire colors. the wire color coding has been a standard for about 60 years

 

[bheff]

simply look up SAE standard wire colors. the wire color coding has been a standard for about 60 years

The problem is, nothing on this boat is standard. It's been rewired among other things.

 

[Blueghost924]

My vote is the oil pressure sender.

You may have to do what i did with my old boat - completely re-wire it. And get rid of those butt connectors.

 

[bheff]

My vote is the oil pressure sender.

You may have to do what i did with my old boat - completely re-wire it. And get rid of those butt connectors.

Definetly isn't the oil pressure sender. I found that. The orange wire is a thicker diameter. When traced, it comes back to the red/white wire on the alternator. But it also has continuity at the starter.

 

[Blueghost924]

My other thought would be the starting system. I have a 5.7L system now, but I remember back when I had the ol 4 cylinder 470, there was an orange thick 4-6 gauge wire in the starting or solenoid path. This was a while back though....

 

[achris]

That would have been used if your instrument panel had a amp meter . That wire was eliminated later on . Volt meters are a lot simpler.

Your first reply ^^^ was the right one.