Headlight wiring 1915

[Will N]

Ok, so I bought a new 5 wire commutator wiring harness, and it came with a wire for the headlight embedded in the loom, and a second plain black wire with no terminal ends on it. I imagine the wire in the loom for the headlight with the terminal end attaches to one post of the headlight switch, and the other bare end goes into one of the terminals in the passenger side headlight plug. Then I imagine that the plain wire that was provided starts from the other terminal in the passenger headlight and crosses over to one terminal in the driver headlight. But what wasn't provided was any kind of loom to protect the wire crossing over, nor was there provided a short wire to connect the other side of the driver light to ground, nor was there a wire to connect the other side of the headlight switch to the power source (either the mag or battery post on the coil box. Should these "missing" items have been included, or is the expectation that you should make these items yourself?

Thanks
Will

 

[Will N]

PS I looked in the Snyders and Langs catalogs, and neither appear to sell these "extra" bits of wiring and loom, so I'm kind of thinking I'm on my own to complete the circuit.

Will

 

[tmodelman]

Yea, one of those things, that's what makes working on Model T's so much fun


Just get some more black wire, the tail light harness wire is a nice long length. its listed in the catalogs.

Here are a couple of pics of a '15 firewall and front, you can see the 5-wire commutator loom, and the single wire to the magneto bulb.

On the other pic of the firewall, look carefully and you can see the power wire from the mag terminal, and then back to the other lamp, in series I believe. The switch to operate the headlamps is a push /pull type on the passenger side of the fire wall.

 

[CCWKen]

There should be a tube at the bottom of the radiator for the crossover wire. This is "the loom". Check to see if the crossover wire is extra long. You might be able use part of that for the ground wire.

 

[Will N]

Thanks fellas! I just wanted to make sure the kit I got wasn't missing anything.