02-13-2013, 02:44 PM | #1 |
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Join Date: Feb 2013
Location: Austin Texas
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Horn tests
Hello, this is my first post, so bear with me!
I recently purchased a 29 closed cab pickup. I have wanted a classic pickup for years and finally found one for sale. Bought it from my neighbors across the street from my home.(go figure). I have been working on mostly electrical parts (Headlights, break light switch ect) And Im finding that the ground and contact points are fixing my problems. My horn does not work and whould like to know what tests I can run on the horn system to see if it is in working order before I take it apart. (Which lead shoud be hot? If horn botton is working ect.) Thanks in advance for any suggestions. |
02-13-2013, 03:03 PM | #2 |
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Join Date: Dec 2012
Location: Indiana
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Re: Horn tests
I'm pretty new at this as well, but look at your ammeter while you push the horn button. If the needle moves to discharge slightly when you push the button, then the button and the wires to the horn are likely ok. There is current draw, but the horn may not be turning. Pull the back cover off the horn and have a look. It gets pretty obvious when you take the cover off. It's only one screw.. Good luck!
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02-13-2013, 04:03 PM | #3 |
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Re: Horn tests
I would remove the horn cover and unplug one wire and ground the horn terminal. If you don't get the horn to blow, or at least a spark, then plug the wire back in and remove the other wire and ground that terminal, and try it again. If you have a volt meter it's easy to test which wire is hot. It doesn't matter which wire goes to which terminal. The ground terminal leads to the horn button, and quite often the horn button doesn't make a good ground due to years of corrosion from not being used. I push the button down and roll it around as it's pushed, and sometimes this will get the horn blowing again.
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02-13-2013, 08:14 PM | #4 |
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Join Date: Feb 2013
Location: Austin Texas
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Re: Horn tests
Thanks guys, I got it working earlier, I cleaned the contact at the bottom of the horn rod. I cleaned the other contacts last week, but overlooked the bottom fo the horn rod.
All I have left is to lube of the truck, inspect brakes, and im on the road. This is fun!!!!! |
02-14-2013, 03:43 AM | #5 |
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Re: Horn tests
Yo, Okie Brother, fun hasn't started 'til you drive It! Go out in the rain, find a backroad with mud holes & bumps & ruts, etc, don't be scared of that dude, it'll bring you home in great style. Report back on this thread of your "ESCAPADES"! Bill W. & The Dog
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02-14-2013, 04:46 AM | #6 |
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Re: Horn tests
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02-14-2013, 08:55 AM | #7 |
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Re: Horn tests
Model A Wiring Diagram in case you don't have one.
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02-14-2013, 09:21 AM | #8 |
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Re: Horn tests
I "test" my horn often... As I'm driving along I sometimes randomly blow it, wait a few minutes, then blow it again. Usually the passenger with me will not say anything the first time, but by the second or third time will ask what thats all about. I tell them I'm testing my horn, I have to keep checking it because who knows, it may have just quit and I wouldn't know it until I needed it. Yeah, I get strange looks... Kind of like leaving a clock stopped in the house and then when asked why I always look at the stopped clock to see what time it is, I say "Haven't you heard? A stopped clock is the most accurate, twice a day it is EXACTLY right". The nice thing about being thought "excentric" is you can get away with just about anything and no one gives it another thought.
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02-14-2013, 09:43 AM | #9 |
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Location: Bethany, Ok
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Re: Horn tests
Have you got with the Sooner Model A Club yet? Good active group and very helpful. Pm me and I will give you more info.Phil
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02-14-2013, 05:00 PM | #10 | |
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Re: Horn tests
Quote:
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"THE ASSISTANT GURU OF STUFF" Last edited by BILL WILLIAMSON; 02-14-2013 at 05:07 PM. |
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02-14-2013, 10:38 PM | #11 |
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Re: Horn tests
Bill, That last picture looks like Mexico today!!! (only the cars are usually newer but not in that good of shape!)
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02-16-2013, 04:54 PM | #12 |
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Join Date: Feb 2013
Location: Austin Texas
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Re: Horn tests
Thanks for the drawing. I only see two wires coming off my gen. One goes into the harness. The other goes up to the fire wall?
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02-16-2013, 05:10 PM | #13 | |
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Re: Horn tests
Quote:
If you ever think the ammeter is bad you can just bypass it by jumping the two wingnuts on the terminal box cover. |
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