Have to frequently adjust Ooogah horn to make it work.

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ivaldes1
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Have to frequently adjust Ooogah horn to make it work.

Post by ivaldes1 » Wed Nov 25, 2020 11:42 pm

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?

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Jim_PTC_GA
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Re: Have to frequently adjust Ooogah horn to make it work.

Post by Jim_PTC_GA » Thu Nov 26, 2020 7:22 am

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.
Just give me time to Rust and I'll be good as new. :) Wabi-Sabi


Humblej
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Re: Have to frequently adjust Ooogah horn to make it work.

Post by Humblej » Thu Nov 26, 2020 7:54 am

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


John Illinois
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Re: Have to frequently adjust Ooogah horn to make it work.

Post by John Illinois » Thu Nov 26, 2020 9:06 am

I agree. sometimes a relay helps.

John


Jim Eubanks
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Re: Have to frequently adjust Ooogah horn to make it work.

Post by Jim Eubanks » Thu Nov 26, 2020 9:25 am

I have found that lubricating them does wonders.

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Inthegarage
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Re: Have to frequently adjust Ooogah horn to make it work.

Post by Inthegarage » Thu Nov 26, 2020 9:49 am

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

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ivaldes1
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Re: Have to frequently adjust Ooogah horn to make it work.

Post by ivaldes1 » Thu Nov 26, 2020 12:04 pm

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.
Attachments
IMG_0050.jpg
IMG_0051.jpg


Sarikatime
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Re: Have to frequently adjust Ooogah horn to make it work.

Post by Sarikatime » Thu Nov 26, 2020 12:24 pm

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
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Re: Have to frequently adjust Ooogah horn to make it work.

Post by Erik Johnson » Thu Nov 26, 2020 1:14 pm

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.

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ivaldes1
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Re: Have to frequently adjust Ooogah horn to make it work.

Post by ivaldes1 » Thu Nov 26, 2020 7:38 pm

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!

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