Have to frequently adjust Ooogah horn to make it work.

[ivaldes1]

Hi, I have a Model A Ooogah horn. I have to frequently turn the adjusting screw on the back to make it work. Is there a way to fix it so that it works most of the time?

[Jim_PTC_GA]

The one I use is also an old A horn and had the same problem. I discovered through trial and error that I needed larger wire in the whole circuit for the horn. I did disassemble the horn and clean / lubricate first. Then later discovered it needed larger wire.

[Humblej]

I agree with Jim, my limited experience with a fussy weak model A horn was electrical, not a mechanical fix.

[John Illinois]

I agree. sometimes a relay helps.

John

[Jim Eubanks]

I have found that lubricating them does wonders.

[Inthegarage]

Have you tried the horn with the rear cover off ? If it works you are tightening the screws to tight. Do you know there’s a adjustment screw behind the cover
Let us know

[ivaldes1]

Here are some photos. If I use a larger gauge wire (red one in the photo) and directly jump it to the terminal block it works fine sounds strong. Using the switch it is weak. If I 'revive' it using the larger gauge wire it is better for a few toots on the switch but then goes back to being weak.

[Sarikatime]

Clean to bare metal on each side of the head bolt and the bracket to get really good ground. Or install a second ground wire. Just a thought. Frank

[Erik Johnson]

In addition to lubricating the bearings as others have mentioned, clean the commutator. I like to use a Q-tips sprayed with electrical contact cleaner to do this.

[ivaldes1]

A screw was loose on the back side of the wire hookup. I tightened it up and it works a lot better now, thanks all!