Brown Wire at Alternator

[76was124]

In the image above, there are two ends of a brown wire near the alternator with some type of factory termination on them. The one can be readily seen at the end of the brown wire, the 2nd is just below it sticking up where you can see the tip of the copper wire at the top of connector, it kinda looks like a valve stem jetting up from the harness. (Maybe that is so you can easily check the air in the tires if the car won't start:) I'm pretty sure the brown wires were a single factory oem splice that broke. That is, it was similar to the two red wires shown connected in the same image.

Its an '82 spider, the wiring diagram shows a brown wire terminates at the Starter + post, so does the splice makes sense? Not sure why they spliced it except for maybe easy troubleshooting?

[spider2081]

Looking at your posted diagrams. I believe the large black wire with the white dashes in it comes from the battery +. The brown wire's connection that is broken would be C7 in the wire diagram. A little to the left in your photo is a red wire with a black connection, that is C6 in the schematic. Items 30 in the schematic are the starter solenoid. Your second photo of the starter solenoid shows the large green wire from the cars battery, the brown wire that is broken and the black wire that connects the alternators output to the battery to charge it. That is what the schematic shows so those connections are correct.
The black red wire connection is the wire that connects the ignition switch start position to the starter solenoid and is a problem in many cars. You might want to clean it while you are there. The connections to the solenoid are hot as long as the battery is connected in the car. The broken brown wire is hot at the broken end. I suggest you disconnect the battery negative terminal before making repairs. The brown wire sections need to be reconnected for the circuit to work. Most likely the car will start once you do this.
I believe many of the connectors and splices in cars are part of the manufacturing process and serve no purpose after the car drives off the assembly line. Cars are produced in sections and the wires for each section and in place ad two sections come together the harness is either plugged together or spliced. In this case the engine is probably one harness and the chassis is another and the broken connection was simply the fasted way to connect them together during assembly.

Hope this helps

[76was124]

Thank for the help., This is a restoration project, so no battery currently in the car. Good point on the assembly process being two sections.