BFR
Rocket Surgeon
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anybody have or know who has horn buttons for sale? can't seem to find one. used is ok
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horn button issues
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DavidB
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FOR ?
Crazyguyla
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old style or new??
sailor2000
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Old or new????????????? what is the difference???? I need one too.. there is 'a' spot where mine works... not real good for a panic switch!!! LOL!!
steelandcanvas
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They're on eBay all the time. Usually around 15 to 20 $.
jwaller
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OD Iron has rebuild kits for the button. I got one from him and it's a good piece.
devilman96
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nf6x
Feral Engineer
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The kit pictured above at the OD Iron site link would be the "old" kit. It has a big button that fills the whole center area of the steering wheel hub, with a rubber cover that goes over it. I see two or three of these kits on eBay at the moment, too.sailor2000 said:
The "new" kit looks like this:
http://saturnsurplus.com/m35/4152.jpg
That kit has a big rubber spacer that mounts in the hub in place of the "old" button assembly, and then a smaller sealed button unit mounts in the center of that spacer and is held in place with a snap ring. Saturn Surplus's web page says they're out of stock and I don't see any on eBay at the moment. You might try calling other MV dealers such as Memphis Equipment if you want this style.
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I got a "kit" from ACE a few weeks ago, the old style and must say that it isn't very "military" with the brass parts suspended by a spring and relying on clean contacts to operate correctly.
I gave all parts a good cleaning and checked for good contact as I moved along in the assembly.
It works now, but having a sealed unit should be an advantage. The sliding contact down the steering column (on the xm757 anyway) needed attention too.
I gave all parts a good cleaning and checked for good contact as I moved along in the assembly.
It works now, but having a sealed unit should be an advantage. The sliding contact down the steering column (on the xm757 anyway) needed attention too.
Ugg013
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Re: RE: horn button issues
I got the same issue too, and know what ya mean. It really sucks when ya gotta feel around for that right spot when some moron cuts in front of you & stops.
Later
Ugg
Sailopr:sailor2000 said:
I got the same issue too, and know what ya mean. It really sucks when ya gotta feel around for that right spot when some moron cuts in front of you & stops.
Later
Ugg
BFR
Rocket Surgeon
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RE: Re: RE: horn button issues
so, what does a fouled up solenoid on the horns result in? Full time horns, or no horns? ?
so, what does a fouled up solenoid on the horns result in? Full time horns, or no horns? ?
Barrman
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RE: Re: RE: horn button issues
The horn solenoid has a rubber tipped plunger. Air coming to the horn holds this plunger down. A spring keeps the plunger against the air line to the horns when there is no air in the system, but it is not very strong. When you energize the coil, the plunger is magnetically pulled back and air is allowed to flow to the horns. The plunger has to overcome the air psi to move.
So, to anwswer you question, it will not work if the solenoid is bad.
A solenoid will also not work on 12V either. At least not at a psi where the horns sound good. I have OBA on my M715 and I thought a spare M35 horn would be great to install. It only works below 14 psi in the system and sounds like a sick duck at that low of a pressure.
You can pull a solenoid apart, but you can only get to the plunger and spring. If yours isn't working, you might try that to get crud out. But, the rest is just a coil that works as an electro magnet and can't really be worked on.
The horn solenoid has a rubber tipped plunger. Air coming to the horn holds this plunger down. A spring keeps the plunger against the air line to the horns when there is no air in the system, but it is not very strong. When you energize the coil, the plunger is magnetically pulled back and air is allowed to flow to the horns. The plunger has to overcome the air psi to move.
So, to anwswer you question, it will not work if the solenoid is bad.
A solenoid will also not work on 12V either. At least not at a psi where the horns sound good. I have OBA on my M715 and I thought a spare M35 horn would be great to install. It only works below 14 psi in the system and sounds like a sick duck at that low of a pressure.
You can pull a solenoid apart, but you can only get to the plunger and spring. If yours isn't working, you might try that to get crud out. But, the rest is just a coil that works as an electro magnet and can't really be worked on.
BFR
Rocket Surgeon
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RE: Re: RE: horn button issues
ok, sounds like I have a fault somewhere between the button and the solenoid
ok, sounds like I have a fault somewhere between the button and the solenoid
Barrman
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RE: Re: RE: horn button issues
As always, check your ground would be my first suggestion.
With the air system empty, you should be able to hear the solenoid clicking if it functions. It will sound just like a flipper on a pin ball machine which works exactly the same way.
As always, check your ground would be my first suggestion.
With the air system empty, you should be able to hear the solenoid clicking if it functions. It will sound just like a flipper on a pin ball machine which works exactly the same way.
FormerNewMVGuy
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Saturn surplus sell the horn buttons ,A couple different ones are listed 
jeli
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Where are the air horns normally mounted? Mine are missing and the solenoid too I believe. The sick little electric horn still works but you can't hear it over the engine idling. I have a set of air horns off a different truck I'm going to install.
Crazyguyla
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Passanger side, inner fender.
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Stock deuce air horn
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BFR
Rocket Surgeon
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- North Georgia
Re: RE: Re: RE: horn button issues
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My first thought too. Should one of the wires going to the horn be hot all the time with the other wire going to the button which only grounds/closes the circuit when the button is pushed? Also can i just pull a new lead up the the steering column w/o opening the box(it is probably the only thing that doesn't leak on my truckBarrman said:
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RE: Re: RE: Re: RE: horn button issues
it is just a straight shot up the steering column with a little tapered rubber plug at the bottom. the horn selenoid valve can be rewound for 12 volt, half as many turns of wire that has twice the area, usually 2 wire sizes different (larger) benn there, done that.
it is just a straight shot up the steering column with a little tapered rubber plug at the bottom. the horn selenoid valve can be rewound for 12 volt, half as many turns of wire that has twice the area, usually 2 wire sizes different (larger) benn there, done that.