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Ford 9N, 2N & 8N Discussion Forum
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OT/Horn Relays

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R.M. In AL

08-02-2003 12:38:43




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I just purchased a used Yamaha Gas Golf Cart.Im going to upgrade it a little.I plan on putting a lift kit and larger mud tires on it for offroad riding.I have installed the lights, cigaret lighter outlet for accessories.I have ordered a 12volt horn and button.No horn relay comes with this kit, and I was wondering is a horn relay necessary with the horns of today.I really do not know what a horn relay does.I was just wondering if any of you happen to be a retired aviation electronics engineer that could help me.If not I will listen to the Electronically Challenged also. Have a good weekend all...R.M. In AL.

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Hal/WA

08-03-2003 22:44:01




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 Re: OT/Horn Relays in reply to R.M. In AL, 08-02-2003 12:38:43  
The horn relays that I have looked at were set up so that operating the horn button or ring grounded the horn wire in the steering collumn, which completed the circuit to the relay and caused the relay to supply power to the horn. This was easier wiring than having 2 wires to the horn button and allowed much greater power to be routed to the horn(s).

Some of the old motor driven horns took a lot of power and the wiring and horn switch would have had to be much more substantial if they were to carry the large amount of power instead of the much smaller load to ground.

However modern horns take much less power for similar or louder noise. If the horn button that came with your horn has 2 wires, it probably is set up as a switch in the hot side. Were there no directions? I would try just using the supplied horn button. However, for safety's sake, I would add an inline fuse to protect the circuit. Good luck!

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Darrel(ok)

08-03-2003 11:13:01




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 Re: OT/Horn Relays in reply to R.M. In AL, 08-02-2003 12:38:43  
You could go to wal-mart and buy an off-road light relay. You'll find them on the shelf with the add-on off-road lights. I think they cost about $7.00 and are rated at 30 amps. They are very small and have a mounting hole. Hook the switching side to your horn button, requires very little power, hook the switched side to the horn and you should be good.



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Jack-Illinois

08-02-2003 13:16:15




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 Re: OT/Horn Relays in reply to R.M. In AL, 08-02-2003 12:38:43  
A horn relay is designed to carry more current (load) than most contacts and wiring you find in auto type steering wheel units. You will probably be OK with just a button if you are only tooting one horn.



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