Alternator wiring

[Dreamkiller]

Im missing the alternator wires and connector from my loom and was after a little help.

In the sc400 charging diagram, the blk (or white) and the No. 1 white goes through fusable links then to +ve. Thats fine.

But the No. 3 blk/ylw wire goes to HOT IN RUN, and the No. 2 ylw/grn goes to HOT IN RUN OR START.

What the bloody hell is "hot in run" ???

 

[Lextreme II]

Have you seen this thread: How to change Alternator

 

[Peewee]

Hot in run means it has power when the car is running.

Hot is shortcut term for voltage.

 

[Zuffen]

Do you have the appropriate plug for the alternator?

If not ask and I'm sure some one will have one for you off an old loom.

 

[Dreamkiller]

I hadnt seen that article Dave, thanks!

That makes sense now.
The plug may be hiding somewhere in the large amount of unused wires that ive discarded.

I dont understand though, why their is a 7.5A fuse, a 140A fuse and a 120A fuse within a circuit for one wire.
Surely using just one 140A fusible link is enough.

 

[Zuffen]

The 7.5 amp fuse is for the ignition warning light.

The 120amp fuse is for the output of the alternator.

The 140 is actually a fusible link in the wiring. Blow that and you have a real problem on your hands.

Follow the diagram and it will all make sense. Notice some wires are hot in start AND run and others in run only.