How I wired my alternator.

[VetteVet]

Originally Posted by zosoppp

Should the fusible link from the battery + to the junction block really be three (3) sizes smaller (18Ga) than the main primary wire (12Ga)?

I thought fusible links were supposed to be 2 Wire Gauge sizes (4 numbers) smaller (so 16 Ga for this case).

Yes that is correct. A 12 gauge wire would have a 16 gauge fusible link.Where did you see the 3 gauges smaller size?

[zosoppp]

Originally Posted by VetteVet

Yes that is correct. A 12 gauge wire would have a 16 gauge fusible link.Where did you see the 3 gauges smaller size?

The diagram you posted indicates the fusible link is 18B (if Im reading it correctly). Although that might be a scanning error or something I suppose.

[VetteVet]

Originally Posted by zosoppp

The diagram you posted indicates the fusible link is 18B (if Im reading it correctly). Although that might be a scanning error or something I suppose.

You have good eyes I never noticed that. I did not create that part of the diagram so I hadn't noticed it. It's possible that the original diagram showed it that way because of the ammeter wire that attaches to the same junction point.

This is from the factory wiring diagram and it shows the FL as a 16 gauge.






I'll have to modify my diagram. VV