55-59 headlight switch "points"?
Putting in a new headlight switch in my 58 and noticed what looks like two sets of "points" inside the switch. Are those like a fusable link for the lighting circuits? The small fuse I believe is for instument lights only.
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Re: 55-59 headlight switch "points"?
I believe those are bi-metal switches that break contact if the load causes the temperature of the bi-metal spring to exceed a certain point. Somewhat of an exposed circuit breaker.
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Re: 55-59 headlight switch "points"?
Exactly. If a fuse was used and it "popped" due to a short you'd have no lights. The breaker allows the lights to flash on and off, potentially allowing one to make it to a safe area to check out the lighting circuit.
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Re: 55-59 headlight switch "points"?
Thats what I figured. Do they protect all the lights (headlights, tail lights, stop, park and dome?
I replaced the wiring harness with a ''stock" V8/ hei harness from classic parts. I'm putting in my own fuse block to protect accessories (heater fan, radio, wiper motor, ect.) I just wanted to make sure my lighting circuit is protected through the contact breakers on that switch. |
Re: 55-59 headlight switch "points"?
Quote:
the fuse block was optional on task force trucks if you had; radio, heater, turn signals or elect wipers i believe the optional cigarette lighter was inline fused if you installed an aftermarket fuse panel with a headlight auto-reset breaker you can tweak the thermals so they never open |
Re: 55-59 headlight switch "points"?
Changing to relays at the headlights and other big power users takes the load off of the switches which instead of carrying full current are just a signal circuit to the relay.
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