[Cobranut]

Jack,

On my car, I wired everything that pulls appreciable current thru relays. ie: fans, headlights, fuel pump, preluber, even the horns.

The only thing that feeds directly thru the ign sw is the ignition system.

I agree with Bob, the switch should not get hot. I'd either replace it per his suggestion, or rewire all the major components thru relays.

If your temp gauges are electric, the drop across the switch may affect their readings, same for the fuel gauges.

Good luck,