| bgalla | -- 03-05-2012 @ 9:07 PM |
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I need some help on how the horn works and how to make it work. The horns look in good shape and are off the car. I have tried testing them with the battery (6V)and only get one click out of them. What should the adjustment for the contact points be set at? What is supposed to move to make the sound? I'm at a loss to figure it out. Thanks for any help,testing procedures or helpful hints. Bruce
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| 40 Coupe | -- 03-06-2012 @ 4:45 AM |
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The horns are basically a solenoid. The electrical contact is normally closed. When power is supplied the solenoid picks up through the closed contact, when the solenoid picks up it mechanically opens the contact and the solenoid drops out and the contact closes again. This cycle repeats itself very quickly as long as the horn button is depressed. The solenoid or coil will create an arc across the contacts as they open, so there is a capacitor across the contacts to absorb the arc and minimize it to preserve the contact. It sounds as if your contacts are closed and the solenoid is picking up, but the contacts are not opening. The contacts can arc together. It is best to disassemble and clean the contacts removing all signs of pitting with a point file. keep the contacts flat for max face contact when done. Very small adjustments make a big difference. You want Max. volume when finished.
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| TomO | -- 03-06-2012 @ 7:36 AM |
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Reply deleted. It described the 39-47 horn repair procedure. This message was edited by TomO on 3-6-12 @ 7:38 AM
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| bgalla | -- 03-07-2012 @ 8:18 AM |
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40 Coupe-----thanks for the explanation it all makes sense to me now. Bruce
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