Horn Works, BUT!!
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Topic author - Posts: 878
- Joined: Thu Jul 23, 2020 9:28 pm
- First Name: Bruce
- Last Name: Brakke
- * REQUIRED* Type and Year of Model Ts owned: 1927 coupe
- Location: Ames, Iowa
- MTFCA Number: 31192
Horn Works, BUT!!
I have a 6v motor horn made by E.A. Laboratories. It is Model F. It had not been run in 60 years. I took the top cap off and oiled the armature shaft top and bottom. I connected it to a new 6v battery, and it works. However, sometimes the armature won't turn. If I move it just slightly, it works. The is a adjustment screw on the cap, which I assume is to change the sound. ANY THOUGHTS ON WHAT THE PROBLEM IS AND HOW TO FIX IT ?
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- First Name: Kevin
- Last Name: Pharis
- Location: Sacramento CA
Re: Horn Works, BUT!!
Sounds like maybe dirty armature/brush surfaces...? See if you can sand the contact faces to freshen em up
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- First Name: Adam
- Last Name: Doleshal
- * REQUIRED* Type and Year of Model Ts owned: ‘13 Touring, ‘24 Touring, ‘25 TT dump truck, ‘26 Tudor, ‘20 Theiman harvester T powerplant, ‘20 T Staude tractor
- Location: Wisconsin
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Re: Horn Works, BUT!!
1 defective solder joint or broken wire between commutator and armature.
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- First Name: Norman
- Last Name: Kling
- Location: Alpine California
Re: Horn Works, BUT!!
The adjustment screw will allow the armature to spin more freely and also change the sound of the horn. It should be just tight enough to hear a good honk, but still be able to turn easily.
Norm
Norm
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Topic author - Posts: 878
- Joined: Thu Jul 23, 2020 9:28 pm
- First Name: Bruce
- Last Name: Brakke
- * REQUIRED* Type and Year of Model Ts owned: 1927 coupe
- Location: Ames, Iowa
- MTFCA Number: 31192
Re: Horn Works, BUT!!
IT WORKS!! I did three things: 1) Tightened a screw that was loose holding one of brushes. I could see the brush move. 2) Loosened the adjusting screw until the sound stopped and the tightened it until it gave a good sound. 3) Sprayed some brake cleaner on the motor and then blew it with air. I don't know which one worked, maybe all three!
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Topic author - Posts: 878
- Joined: Thu Jul 23, 2020 9:28 pm
- First Name: Bruce
- Last Name: Brakke
- * REQUIRED* Type and Year of Model Ts owned: 1927 coupe
- Location: Ames, Iowa
- MTFCA Number: 31192
Re: Horn Works, BUT!!
Painted it, looks very nice. Sounds great! Is this Model F by E.A. Laboratories a Ahooga horn? Another question: Does it matter which terminal on the horn is connected to battery positive?
L
L
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- Joined: Sun Jan 06, 2019 5:25 pm
- First Name: John
- Last Name: Saylor
- * REQUIRED* Type and Year of Model Ts owned: 1921 Touring, 1927 Tudor
- Location: Citrus Heights, Ca
- MTFCA Number: 1695
- MTFCI Number: 23870
- Board Member Since: 1999
Re: Horn Works, BUT!!
Polarity might make a difference in which way the motor rotates. Test it out. see if any differences.