Re: 1954 Pacific / headlight out / headlight circuit breaker switch / dimmer switch
Posted by HH56 On 2020/7/5 14:11:10
The circuit breaker is a small rectangular box at the end of the headlight switch but it is odd for the lights to go completely off and stay off since the breaker is self resetting. Normally the breaker will trip and after a few seconds lights come back on only to go off again and have the cycle repeat until the headlight switch is turned off.
The turn signals are separately fused so they will not be affected. Not sure what you are calling driving lights but dash and parking lights are also powered off the headlight breaker so should be affected as well. If dash lights are still on when headlights are off then I would concentrate on a burned or broken/disconnected wire or a bad dimmer switch. If the dash and headlights are both turning on and off then look for a shorted wire or possibly the breaker is just suffering from old age and has lost capacity. That has been known to happen.
If you need a breaker they can usually be found at Napa or other parts stores. 30 amp, stud mount, type I self resetting. If you can only find the breakers with an extra mounting flange, the flange would possibly need to bend down or be removed to properly mount the breaker onto the headlight switch so the battery terminal will be in the correct spot on the switch.
Here is the 51-6 switch. Electrically the switches are all the same with identical terminals. The only difference is in the threads at the short base section and diameter of the shaft which determines the way the switch mounts to the dash and how the knobs attach.
.
Attach file:
(50.35 KB)
The turn signals are separately fused so they will not be affected. Not sure what you are calling driving lights but dash and parking lights are also powered off the headlight breaker so should be affected as well. If dash lights are still on when headlights are off then I would concentrate on a burned or broken/disconnected wire or a bad dimmer switch. If the dash and headlights are both turning on and off then look for a shorted wire or possibly the breaker is just suffering from old age and has lost capacity. That has been known to happen.
If you need a breaker they can usually be found at Napa or other parts stores. 30 amp, stud mount, type I self resetting. If you can only find the breakers with an extra mounting flange, the flange would possibly need to bend down or be removed to properly mount the breaker onto the headlight switch so the battery terminal will be in the correct spot on the switch.
Here is the 51-6 switch. Electrically the switches are all the same with identical terminals. The only difference is in the threads at the short base section and diameter of the shaft which determines the way the switch mounts to the dash and how the knobs attach.
.
Attach file:
(50.35 KB)
This Post was from: https://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?post_id=224288