Alternator regulator wiring help.

[dkm004 11]

Hey Fella's.

 

Im in the process of replacing my numbers matching 351W in a 69 Mach with a 450hp 408W Stroker to put the original 100k mile engine in storage. Everything has gone smooth so far, the only glitch so far being with wiring harness doesn't correspond with the looms wires. The new harness has a Green, Yellow x2, white x2  and a Black.  The cars original loom has A Green/ Red stripe, Orange and Yellow. There is also a black wire that seems to be a ground. The green goes to Green/ Red and the Yellow to Yellow from what I can tell from the manual. Can anyone school me on which wires connect to which colour?

 

                                                        Cheers.

[Midlife 840]

Oh Gawd...I know about this.  Sometime during the middle of the year, Ford changed the wire colors.  Just get the electrical assembly manual or the wiring diagrams and go by the pin locations in the VR plug and to the alternator.  Be careful: there are two basic designs: one for a tach dash and another for the standard dash.  Don't mix them.

[dkm004 11]

I have the diagram. The problem is that my harness fell apart and I have no reference to what pin went in what position. Ive worked all but one out. The new harness has 2 white wires that I have no wire to conect to.

[Midlife 840]

Do a continuity check from those white wires to the alternator plug and other pins around it; if you can find where at least one end of the wire goes, the wiring schematic will tell you where the other end goes.

 

Or...you can send everything to me and I'll fix it right up for you.