hot ignition wire. .

[LwReed]

i have an 1981 fiat spider 2000. . . . the ignition wire seems too get hot. . . .smoking somethings. . . . what up with that. . . i have own an fiat 128 one time . . .can't remember the year. . . . but it did the same thing. . . but not as bad. . . . . is this the right place to post this. . . new member. . . the red one

 

[s130]

Welcome.

Sounds like either an overload on that circuit or possibly the ignition switch contacts being so worn with age that they are overheating and warming the cable up via conduction.

I would expose the switch and wires by removing the plastic steering column covers. The unwrap a good 6 inches / 15 cm of the electrical insulation tape that binds the wires together into a cable loom. Now you should be able to see and feel what is going on.

If the problem is caused by an overload than you will need a wiring diagram to find out what loads are on the circuit overheating. They could be disconnected one at a time. If with no loads the problem still occurs then you are probably looking at a chafed / damaged cable somewhere.