|
Sponsored Links (Register now to hide all advertisements) |
|
|
Thread Tools | Display Modes |
05-03-2018, 08:16 AM | #1 |
Senior Member
Join Date: Sep 2013
Location: Connecticut
Posts: 267
|
Sick Ahh-Ooh-Gah
The title should suggest where I am going with this post. My horn kind of sounds Ahh-Ooh-Gah, but is barely audible. When on the road and RPMs are up of course it's a bit louder but still quite weak. Would this seem to be a problem with the horn itself or more likely an electrical problem or deficiency? I am still 6V with stock generator, no voltage regulator or other "modernization" add-ons. Suggestions?
Thanks! |
05-03-2018, 08:49 AM | #2 |
Senior Member
Join Date: Aug 2017
Location: St. Maries, Idaho
Posts: 162
|
Re: Sick Ahh-Ooh-Gah
The first thing I would do would be to take the back cover off the horn, clean everything up then lube it with a light oil or as I prefer, a teflon spray lubricant. Mine was acting the same way and after doing this it now works and sounds like new. Good luck
|
Sponsored Links (Register now to hide all advertisements) |
|
05-03-2018, 09:19 AM | #3 |
Senior Member
Join Date: Feb 2017
Location: Northern Idaho
Posts: 282
|
Re: Sick Ahh-Ooh-Gah
While you are in there doing what Standing Elk suggested, try grounding out the wire from the horn switch directly to a good ground point on the chassis. This might help determine if the problem is in the horn itself or in the horn button/wiring.
|
05-03-2018, 09:20 AM | #4 |
Senior Member
Join Date: Dec 2014
Location: Shawnee, Ok
Posts: 3,471
|
Re: Sick Ahh-Ooh-Gah
__________________
Keith Shawnee OK '31 SW 160-B |
05-03-2018, 09:22 AM | #5 |
Senior Member
Join Date: Dec 2014
Location: Shawnee, Ok
Posts: 3,471
|
Re: Sick Ahh-Ooh-Gah
some other ideas
__________________
Keith Shawnee OK '31 SW 160-B |
05-03-2018, 09:42 AM | #6 | |
Senior Member
Join Date: Sep 2017
Location: Albuquerque
Posts: 162
|
Re: Sick Ahh-Ooh-Gah
Sponsored Links (Register now to hide all advertisements)
Quote:
Until this happened, I didn't know screw had fallen out. Luckily, back was not lost too. Since that occurrence, I have been trying to adjust horn to sound correct again (with no luck as of yet.) Bill |
|
05-03-2018, 10:45 AM | #7 |
Senior Member
Join Date: Sep 2013
Location: Connecticut
Posts: 267
|
Re: Sick Ahh-Ooh-Gah
Thanks for all the suggestions guys! Now I have somewhere to start!
|
05-03-2018, 11:13 AM | #8 | |
Senior Member
Join Date: Feb 2017
Location: Northern Idaho
Posts: 282
|
Re: Sick Ahh-Ooh-Gah
Quote:
|
|
05-03-2018, 01:27 PM | #9 |
Senior Member
Join Date: Dec 2017
Location: Guthrie, OK
Posts: 1,144
|
Re: Sick Ahh-Ooh-Gah
Check brushes for free travel. Springs get weak after 90 yrs. Sand armature contacts with fine grit & clean grooves with a toothpick. Horn relay usually solves weak horn button contact.
The yellow wire is the hot one, directly off the generator. |
05-03-2018, 04:48 PM | #10 |
Senior Member
|
Re: Sick Ahh-Ooh-Gah
Try this. Get someone to push on the horn button while you back off the adjustment. Let the horn motor run up to speed for about a minute. It’s good for the motor to run. Then adjust it and it should sound better.
|
05-03-2018, 04:56 PM | #11 |
Senior Member
Join Date: Mar 2015
Location: Greenville, SC
Posts: 1,099
|
Re: Sick Ahh-Ooh-Gah
[QUOTE=Badpuppy;1624942]Check brushes for free travel. Springs get weak after 90 yrs. Sand armature contacts with fine grit & clean grooves with a toothpick. Horn relay usually solves weak horn button contact.
I found that brake cleaner will make the armature contacts look like new without sanding. Also cleans up the whole area. Let completely evaporate before hitting the horn button or use the non-flammable type. John |
05-04-2018, 08:25 AM | #12 |
Senior Member
Join Date: Dec 2017
Location: Guthrie, OK
Posts: 1,144
|
Re: Sick Ahh-Ooh-Gah
Never heard of using brake cleaner for electrical contacts. Good to know, I"ll have to try it (after pulling the fuse). JacksonIII's idea is a good one too.
|
05-04-2018, 05:24 PM | #13 |
Senior Member
Join Date: May 2010
Location: Burton, Texas
Posts: 681
|
Re: Sick Ahh-Ooh-Gah
When the horns on my Model A’s get lethargic, all I do is to remove the covers and spray the brushes/armatures with non-flammable electric cleaner while the armatures are spinning. Then I lightly oil the bearings and put the covers back on. I need to do this about every three years or so.
Robert |
05-04-2018, 08:27 PM | #14 |
Senior Member
Join Date: Jun 2013
Location: Marana Arizona
Posts: 1,776
|
Re: Sick Ahh-Ooh-Gah
You Tube...Type in Model A horn"
Never had a resource like that when I was young. We would ask each other how to fix it and the guy that was the most convincing we listened to. Kinda like voting. Chap |
05-05-2018, 12:01 PM | #15 |
Senior Member
Join Date: May 2010
Posts: 702
|
Re: Sick Ahh-Ooh-Gah
Or could just use electrical parts cleaner. I'm not sure what the difference is. Both are likely formulated to leave little to zero residue and evaporate quickly.
|
05-05-2018, 12:20 PM | #16 |
Senior Member
Join Date: May 2010
Location: Southern,Maine
Posts: 141
|
Re: Sick Ahh-Ooh-Gah
Be careful using brake cleaner (it's also will ruing any paint that it comes in contact with). Try using electrical contact cleaner on the brushes & armature it's what it is designed for.
Bob |
05-05-2018, 12:53 PM | #17 | |
Senior Member
Join Date: Dec 2017
Location: Guthrie, OK
Posts: 1,144
|
Re: Sick Ahh-Ooh-Gah
Quote:
|
|
05-05-2018, 04:18 PM | #18 |
Senior Member
Join Date: Feb 2017
Location: Northern Idaho
Posts: 282
|
Re: Sick Ahh-Ooh-Gah
|
05-05-2018, 04:57 PM | #19 |
Senior Member
Join Date: Dec 2013
Location: Gloucester, Va
Posts: 464
|
Re: Sick Ahh-Ooh-Gah
I had the same problem with my horn and did most of the cleaning/adjustments mentioned. Ultimately found the generator was not charging enough so the horn got enough juice to go OOOO but not GAAAA. An adjustment of the third brush in the gennie solved the problem.
Glen
__________________
'31 Model A Deluxe Roadster '31 Chrysler Model 70 Sedan '88 Pontiac Fiero GT '36 Auburn Boattail Speedster replica |
05-05-2018, 05:57 PM | #20 |
Senior Member
Join Date: May 2010
Location: Central FL, USA
Posts: 1,137
|
Re: Sick Ahh-Ooh-Gah
It's amazing to me just how much juice it takes for the Model-A horn to work! I'm thinking it takes just as much if not more then the starter?!? But, what do I know, I also own a Chevrolet...
Bob-A |
05-05-2018, 10:27 PM | #21 |
Senior Member
Join Date: Sep 2017
Location: Albuquerque
Posts: 162
|
Re: Sick Ahh-Ooh-Gah
|
05-06-2018, 07:44 AM | #22 |
Senior Member
Join Date: Dec 2014
Location: Shawnee, Ok
Posts: 3,471
|
Re: Sick Ahh-Ooh-Gah
I'm pretty sure they are a lot of us Barner's who also own Chevy's
__________________
Keith Shawnee OK '31 SW 160-B |
Sponsored Links (Register now to hide all advertisements) |
|
05-06-2018, 08:39 AM | #23 |
Senior Member
Join Date: Dec 2017
Location: Guthrie, OK
Posts: 1,144
|
Re: Sick Ahh-Ooh-Gah
|
|
|
Sponsored Links (Register now to hide all advertisements) |
|