Hi-beam lights flash
Thread Starter
Intermediate
Joined: Oct 2007
Posts: 33
Likes: 0
From: Grand Ledge Michigan
Hi-beam lights flash
On my wife's 73, the head lights start to flash when on hi-beam. It doesn't matter if the engine is running or not (vibration). There is a new head light switch installed but????
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,118
From: Crossville TN
Since both high-beam headlights are doing this [I assume], but only the high-beams are doing this, there must be a wiring problem or the new headlight switch is defective. Personally, I would suspect the new switch.
Actually, on second thought... it sounds more like a problem with the contacts in the [foot-operated] hi-beam switch.
Actually, on second thought... it sounds more like a problem with the contacts in the [foot-operated] hi-beam switch.
Thread Starter
Intermediate
Joined: Oct 2007
Posts: 33
Likes: 0
From: Grand Ledge Michigan
All four lights are on with the brights and all four flash together.
I have bumped/jiggled/pushed and screwed with the dimmer switch but still don't rule it out. I have bought a new light switch and will be installing it when I get time.
I have bumped/jiggled/pushed and screwed with the dimmer switch but still don't rule it out. I have bought a new light switch and will be installing it when I get time.
Race Director
Joined: May 2006
Posts: 16,528
Likes: 53
From: Dayton, Ohio
You might try pulling the 3 wire connector at the dimmer and putting a jumper between the blue and green,then turn on the HL switch and see if they flash. If they do still flash then jumper from green to 12v ( this willl bypass the HL switch) and see if they flash.
Former Vendor
Joined: Aug 2006
Posts: 76,656
Likes: 1,852
From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
DeucePhaeton,
And if you follow Rogers test above and they don't flash....
It's the headlamp switch. Inside there is a a heat contact beryllium copper switch made to break contact should the switch become overheated. This switch in the lamp switch is defective.
I feel pretty certain that this is your problem.. you'll see this in the picture below. In all the time I've been doing this I've seen this happen one other time about two years ago. I've probably sold a gazillion of these switches so I'd say the problem is very limited but your symptoms sound exactly like the defective switch we had.
Willcox
And if you follow Rogers test above and they don't flash....
It's the headlamp switch. Inside there is a a heat contact beryllium copper switch made to break contact should the switch become overheated. This switch in the lamp switch is defective.
I feel pretty certain that this is your problem.. you'll see this in the picture below. In all the time I've been doing this I've seen this happen one other time about two years ago. I've probably sold a gazillion of these switches so I'd say the problem is very limited but your symptoms sound exactly like the defective switch we had.
Willcox
Thread Starter
Intermediate
Joined: Oct 2007
Posts: 33
Likes: 0
From: Grand Ledge Michigan
Willcox Corvette
I think your on track because I was thinking it was acting like a Flasher unit. As soon as it warms it would disconnect then reconnect when it cools......
So with that said It'll be off to change the switch soon... Hope on Saturday. I'll keep you all posted with the results.
Thanks to all that have posted or about to post.
BKR
I think your on track because I was thinking it was acting like a Flasher unit. As soon as it warms it would disconnect then reconnect when it cools......
So with that said It'll be off to change the switch soon... Hope on Saturday. I'll keep you all posted with the results.
Thanks to all that have posted or about to post.
BKR
Former Vendor
Joined: Aug 2006
Posts: 76,656
Likes: 1,852
From: Jeffersonville Indiana 812-288-7103
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15
Willcox Corvette
I think your on track because I was thinking it was acting like a Flasher unit. As soon as it warms it would disconnect then reconnect when it cools......
So with that said It'll be off to change the switch soon... Hope on Saturday. I'll keep you all posted with the results.
Thanks to all that have posted or about to post.
BKR
I think your on track because I was thinking it was acting like a Flasher unit. As soon as it warms it would disconnect then reconnect when it cools......
So with that said It'll be off to change the switch soon... Hope on Saturday. I'll keep you all posted with the results.
Thanks to all that have posted or about to post.
BKR
Hate it for you but this really sounds like the case.
Willcox
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