Seymour Snerd
Lifetime Supporter
I already asked SPF this question and got an unhelpful answer, so I'm hoping one of you knows, most likely someone who did his own install:
On my car (P2160) in the wiring harness back by the battery there is a branch that contains two wires, 1 ~10 gauge red that goes to battery positive and supplies the 80A fuse (and therefore everything else but the starter and alternator), and a ~18 ga brown wire ~3/8" ring terminal.
I have hooked up my battery with the aforesaid red wire to +, and the chassis to -, and the small brown mystery wire open, and everything seems to work fine (lights, rad fans, tach, etc. etc.). So where does this small brown wire lead to? Being brown you would think it's for grounding something, but only if that something is a component I haven't tested.
Lynn's picture (the third one) at http://www.gt40s.com/forum/how-fueling-electrics/24132-spf-gt-wire-labels.html is different from the corresponding point in mine: he shows the red wire by itself and two light gauge brown wires which he labels simply as "battery negative". That unfortunately doesn't tell me what it does, even if it is in effect the same signal.
So does anyone know where in the schematic this small brown wire goes?
On my car (P2160) in the wiring harness back by the battery there is a branch that contains two wires, 1 ~10 gauge red that goes to battery positive and supplies the 80A fuse (and therefore everything else but the starter and alternator), and a ~18 ga brown wire ~3/8" ring terminal.
I have hooked up my battery with the aforesaid red wire to +, and the chassis to -, and the small brown mystery wire open, and everything seems to work fine (lights, rad fans, tach, etc. etc.). So where does this small brown wire lead to? Being brown you would think it's for grounding something, but only if that something is a component I haven't tested.
Lynn's picture (the third one) at http://www.gt40s.com/forum/how-fueling-electrics/24132-spf-gt-wire-labels.html is different from the corresponding point in mine: he shows the red wire by itself and two light gauge brown wires which he labels simply as "battery negative". That unfortunately doesn't tell me what it does, even if it is in effect the same signal.
So does anyone know where in the schematic this small brown wire goes?