P15 horn ring parts

[belvedere666]

Does anyone have a pic of the inner parts of a p15 horn ring?

one of our club members horns is in constant on. I think he may be missing internal parts.

thanks.

-Phillip

[DonaldSmith]

With the horn ring setup,there is a big spring that is grounded, that tries to contact a metal thingie where the horn wire is connected. 

 

The horn ring itself is isolated from ground, and has lugs that push the large spring away from the thingie.  When the ring is pushed, it rocks back from the spring, opposite from where it is pushed, allowing the spring to make contact and blow the horn.  

 

Horn rings are counterintuitive.  You would think push to make contact, like maybe a horn button, but in reallity, it's push evenly to keep from making contact.  Disurb this evenness, like pushing the ring in one place, and contact is made.   

 

[belvedere666]

5 minutes ago, DonaldSmith said:

With the horn ring setup,there is a big spring that is grounded, that tries to contact a metal thingie where the horn wire is connected. 

 

The horn ring itself is isolated from ground, and has lugs that push the large spring away from the thingie.  When the ring is pushed, it rocks back from the spring, opposite from where it is pushed, allowing the spring to make contact and blow the horn.  

 

Horn rings are counterintuitive.  You would think push to make contact, like maybe a horn button, but in reallity, it's push evenly to keep from making contact.  Disurb this evenness, like pushing the ring in one place, and contact is made.   

 

This and the button on top are the only parts he has. I feel like there should be something isolating the ring from the tri-bar piece. There spring underneath the tri bar.

[soth122003]

In the Plymouth service manual, pg. 112 bottom picture. 

 

Joe Lee

[belvedere666]

1 hour ago, soth122003 said:

In the Plymouth service manual, pg. 112 bottom picture. 

 

Joe Lee

He and I have the same manual. It only shows the parts for the 49/50 deluxe and special deluxe and what looks like a 53. No pic of the parts for the p15.

[Mezz]

That looks like all he needs, are we sure the wire isn't cracked and grounding somewhere?  With the horn ring not installed the horn would sound constantly.  If he pushes down evenly on the spring, so it's not contacting the tri-bar anymore, the horn should turn off.

[DonaldSmith]

The tri-bar is the "thingie", of which I spoke.  The dark brown thing is the hub and spokes of the steering wheel, which are plastic and isolated from ground.   

 

As pictured, the spring is in contact with the tri-bar thingie, to which the horn wire is connected.  Completed circuit, horn soundsconstantly. 

 

The shiny metal thing, the horn ring, has lugs in itw back side, to hold the spring down.   The steering wheel and the horn ring cover are plastic, so the horn ring is isolated from ground.  

 

What's missing is a center piece to push the horn ring and its lugs against the spring, breaking the contact. 

 

The horn ring spends most of its life pushing evenly against the spring.   Push or pull the horn ring and the lug or lugs opposite where you push will pull back, allowing the spring to make contact - honk.  

[FarmerJon]

I just went through this with my car also. 

As others have said, the steering wheel center trim/horn cover must be secured. If the screws are loose, the ring will touch and honk. 

If you disconnect the tribar and pull it out a little so it doesnt ground on the spring, it should not honk. If it does, or does intermittently, the wire is likely shorting out. I had to run new wire from my relay all the way up to my tribar, because of a internal short, somewhere in the column.