76 dart sport fuseible links

[RevboxRyan]

So I picked up 76 dart sport here a month ago going through trying to figure out wiring harness and other electrical gremlins. All I can find is 75 and older a body diagrams and this one is close but there is stuff not where is supposed to be. And things are hacked and cobbled as usual. Ammeter wires are completely gone fuse box hanging under dash. According to 75 wiring diagram missing a wire to starter relay or is moved to "circuit breaker". Distributor plug for pickup coil is up by alternator list goes on. Anybody have a diagram for a 76 or is 75 exactly the same?

 

[Professor Fate]

Distributor plug up by alternator is probably for 6 cyl. installations.

 

[4spdragtop]

Mymopar.com for manuals. Make sure its oem. Yours looks like a Motors manual.

 

[Mattax]

So I picked up 76 dart sport here a month ago going through trying to figure out wiring harness and other electrical gremlins. All I can find is 75 and older a body diagrams and this one is close but there is stuff not where is supposed to be. And things are hacked and cobbled as usual. Ammeter wires are completely gone fuse box hanging under dash. According to 75 wiring diagram missing a wire to starter relay or is moved to "circuit breaker". Distributor plug for pickup coil is up by alternator list goes on. Anybody have a diagram for a 76 or is 75 exactly the same?

View attachment 1715980173

View attachment 1715980174

Do a search here. One of our members has scanned the electrical diagrams out of the '76 Factory Service Manual. edit Here, see if the pdf is still on the server here. Free service manuals
1976 Electrical System implement a fairly major shift in how the alternator and battery connected to the subcircuits.

First of all, the two power sources are joined at a welded splice in the engine bay.
Instead of one fusible link on the battery ouput/charge line, there is a fusible link on each of the lines joined to it.
Line A3 off the battery is for hazards - which they figure will be critically needed with the engine off.

Here's a work in progress of the main circuits.

Here's a previous discussion about 1976 under hood components
Please Help identifying underhood components

 

[67Dart273]

YOU NEED TO BUY YOURSELF a factory service manual and "I ain't kiddin"

I'm pretty sure 76 HAD NO ammeter wires "as such." I'm pretty sure 76 used an "external shunt" ammeter, meaning, small gauge wires go to a sensitive meter for the ammeter, and they were tapped into points in the main harness, which the HARNESS ITSELF acted as the shunt.

If the car has been "hacked up" enough, someone may have inadvertently disabled the shunt effect.

Just about all vehicles which used ammeters did this at some point--before getting rid of the ammeter per se. Ford, Mopar, GM.

My buddy, now gone, bought a brand new Chev K2500 in 1970--external shunt. The "C barge" Mopars went this route about that time, 70-72.

Look at your ammeter connections at the cluster--small wires? External shunt

 

[Mattax]

Hopefull the mess isn't too deep but hard to know just yet from that photo but ...

Ammeter wires are completely gone fuse box hanging under dash.

H'm. So on a standard '75 wiring, the ammeter is a part of the battery feed to the main splice. So the wiring is heavy - 12 ga or larger.
On a '76 a remote shunted ammeter is used. The ammeter leads connect to each side of a shunt. They are only 18 or 20 gage. Hardly any current goes through them.

According to 75 wiring diagram missing a wire to starter relay or is moved to "circuit breaker"

AFAIK '76 uses esentiually the same starting relay and circuits as earlier and no interlock (used in 74).

A1 is from the battery
S2 is from the ignition switch - hot when key is in start
S4 is the ground through neutral safety switch
S5 is to the solenoid terminal on the starter

Top Cowl - Don't know why its above the flange in 76 but it was.