Road Runner with laryngitis

[Billccm]

My horn became intermittent this weekend, so I tackled troubleshooting.

I'll spare you all the details other than I pulled the steering wheel and DeOxIt wiped everything really well. The Horn Switch could probably be replaced. I took an emery board and cleaned it up well, and pushing with my fingers as hard as I can it looks like it is making contact, but the phenolic board looks like it has cracks, etc.

Anyhow, looked around for a horn switch on line. I see the usual eBay NOS ones for $70 and up, but did not notice any repo items.

Any recommendation on where to order a new horn switch? I'll also browse the Layson restorations catalog tonight. Thanks.

 

[69L48Z27]

Check out at the relay to make sure it's not making contact. Make sure that's the problem for sure before spending.

Clean the connections out under the hood too.

 

[gkent]

So what is a "horn switch" ???

 

[WileE]

He's referring to the contact ring under the steering wheel ? Anyway, check the horn itself first. You can adjust it.

 

[Billccm]

I can short the horn switch wire to the wheel hub and get a reliable horn 'beep'.

What has happened is the insulated phenolic board inside the switch has cracked where the screw heads mount. I suppose I can open up the screw access holes and use a plastic washer as a fix? I just thought that perhaps there was a repo, or good used one sourced out there somewhere.

As for adjustment, I assume you mean the horn contact ring can be adjusted?

 

[gkent]

The phenolic board has a copper coating on the bottom side that is wired to the horn and makes contact with a roller wheel underneath it. This is the horn circuit. If you go to an electronics hobby shop or somewhere like Radio Shack you can buy a small blank of circuit board material and cut out a new board. The cracks in yours are what's not allowing a complete circuit.

 

[Billccm]

It's fixed. Bought a NOS horn switch from Central Jersey Motor Parts. Cost was $74. Shipped fast; arrived two days after order.

Like my wife says, if a road runner doesn't go beep beep it's just a satellite.

Horns in road runner cars get a workout sometimes. People at shows ask to hear the beep beep often. Thanks for the replies.