Ignition Wiring

[jjorge]

Trying to get the wiring in my 73 mach 1 dialed in (my ammeter doesnt work) and I've been reading the posts about alternator and ammeter wiring questions. The shop manual diagrams are just straightup confusing.

Anyways, I have a white wire with a black stripe in my factory harness, and I cant figure out what it's for. its bundled with the big black/orange, yellow and green/redstripe coming from under the battery. at he end of the white/black there is a plactic connector (coupling), plugged into another white/blackstripe tied to a fusible link. What is this wire for? I thought maybe it was tied to the alternator, but that wouldnt match any diagram I'v seen yet. Any Ideas?

 

[midlife]

White/black is typically the F or FIELD line at the voltage regulator and alternator.

 

[JimNiki]

my ammeter wiring was a mess from the PO, as was the alternator. If you're not fussed about originality, I bit the bullet and installed a new simple one wire alternator. Makes it easier also to rewire the ammeter. Works like a bought one! I like to keep things simple.

 

[jjorge]

White/black is typically the F or FIELD line at the voltage regulator and alternator.

Right, but every diagram I've seen has the white black fron the alternator to the voltage regulator. the white/black I have is in the wire harness heading towards the fire wall.

my ammeter wiring was a mess from the PO, as was the alternator. If you're not fussed about originality, I bit the bullet and installed a new simple one wire alternator. Makes it easier also to rewire the ammeter. Works like a bought one! I like to keep things simple.

Dont really care about originality. What do you do with the rest of the wiring? I'll have to look into this.

 

[JimNiki]

there should be a tutorial on cleaning up the engine bay. Removing the vr was part of the big picture.

 

[midlife]

White/black is typically the F or FIELD line at the voltage regulator and alternator.

Right, but every diagram I've seen has the white black fron the alternator to the voltage regulator. the white/black I have is in the wire harness heading towards the fire wall.

my ammeter wiring was a mess from the PO, as was the alternator. If you're not fussed about originality, I bit the bullet and installed a new simple one wire alternator. Makes it easier also to rewire the ammeter. Works like a bought one! I like to keep things simple.

Dont really care about originality. What do you do with the rest of the wiring? I'll have to look into this.

Can you take a picture of this white/black wire? It might be something that someone added...

 

[Bill73Ragtop]

On my 73 convertible, that wire ran to the electric choke.