67 Low Tone Horn - Stopped Working - Why?

[Kirk M.]

Worked on the car a bit today. Unplugged and dismounted the low tone horn worked on some stuff and then remounted the horn in the same place and it wouldn't work???? Any ideas???

[Howard M.]

Re: 67 Low Tone Horn - Stopped Working - Why?

Kirk:
First thing to do is check for a good ground.

[John F.]

Re: 67 Low Tone Horn - Stopped Working - Why?

Take a little sandpaper to the groung wire and the surface it mates to. I just went thru this with my 62.

[Kirk M.]

Re: 67 Low Tone Horn - Stopped Working - Why?

Where exactly is the ground wire on the driver's side low tone horn??? I have two green wires coming into the horn and that is it. There is a ground on the high tone horn, but I don't see one on the low tone horn. Any ideas?? Thanks.

[Edward B.]

Re: 67 Low Tone Horn - Stopped Working - Why?

Don't know much about a '67, but would assume that the two green wires: 1) Supply power to the driver's side horn from the horn relay; and 2) further transmit that power to the passenger's side horn. Ground should be through the metal base of the horn where it mates to the frame.

[Stephen L.]

Re: 67 Low Tone Horn - Stopped Working - Why?

The green leads are 12vdc power for each horn. Ground is accomplished thru the horn mounting bracket. There should be a "toothed" washer on the mounting bolt to cut thru the paint surface.

Check for 12vdc at the green wire of each horn. (You must depress the horn button during this test).

You can also jumper 12vdc from the positive battery post to the wire connection tab on the horn. If it blows, then your problem is in the wiring.
If it is silent, then you have a faulty horn (assume you've already checked the ground).

Steve

[Howard M.]

Re: 67 Low Tone Horn - Stopped Working - Why?

Kirk:
Both horns have a black wire that goes under the mounting bolt and attaches to the radiator support for ground. Any place on the frame will do. Just make sure the surfaces are clean and free of paint etc.

[John H.]

Re: 67 Low Tone Horn - Stopped Working - Why?

Kirk:
Both horns have a black wire that goes under the mounting bolt and attaches to the radiator support for ground.

That's only true for the RH relocated horn with A/C, as it mounts on the fiberglass inner fender instead of on the steel radiator support. All other horns are grounded through their attaching bolt.

[Kirk M.]

Re: 67 Low Tone Horn - Stopped Working - Why?

Pulled the horn one last time and cleaned up any paint under the bolt to make sure there was a good ground. Horn still didn't work. Noticed that there is a rattling noise in the horn which sounds like sand or small rocks got inside the bell. Spoke with Paragon about restoration and they said if it rattles it can't be restored. Bummer. Now I need an original 67 low note horn. I also tested the wire coming in 11.8V showing when horn button is depressed. Since my car has AC, the pass side horn has been moved and there is only one ground wire which is attached there. John seems to be correct in that grounding of the driver's side horn is through the mounting bracket and bolt. If any knows of a source for an original 67low note horn, I sure would appreciate it. Thanks.

Kirk

[Stephen L.]

Re: 67 Low Tone Horn - Stopped Working - Why?

Just to be sure....

Connect the horn directly to a 12 vdc power source, + to the tab, - to the mounting bracket. Do this on the bench....

Try to find a similiar horn at the salvage yard. Send both to the restorer and assemble 1 good one from 2 horns, using the guts from the salvage unit and your original case.

Can only assume that the restorer disassembles the horn for restoration. If they ONLY paint the exterior then why send any horn out? You can do that yourself.

[Dick W.]

Re: 67 Low Tone Horn - Stopped Working - Why?

Ron Goralski (sp) restores horns. Do a search and you should be able to find contact info for him.

[John F.]

Re: 67 Low Tone Horn - Stopped Working - Why?

Ron Goralski just did both of mine a couple of months ago. Call him at (410)987-1948 or email byegonevette@comcast.net. I had two that needed rebuilding. He told me to find a couple of working horns from 61-63 GM cars. ifound two on ebay and mailed all to him with no $$$. He was able to rebuild both with the numbers in tact and sent back to me with an invoice. That's what this site is all about!

John

[John F.]

Re: 67 Low Tone Horn - Stopped Working - Why?

Call Ron at (410)987-1948 or email byegonevette@comcast.net He did both of my horns. Very reasonable. Sent me a bill with the rebuilt horns. Corvette guys are the greatest!