Momo Steering Wheel
Thread Starter
Instructor
Joined: Jul 2007
Posts: 150
Likes: 0
From: Lewisville Texas
Momo Steering Wheel
Does anyone know how to wire up the horn with an aftermarket steering wheel (Momo, Sparco, etc.)? I've got the original wheel off but can't seem to get the Momo horn to work.
Thread Starter
Instructor
Joined: Jul 2007
Posts: 150
Likes: 0
From: Lewisville Texas
I played around with the horn again last night... couldn't sleep with this lingering around in my head.
Am I correct saying that the top contact pad is the ground and once the spring contacts it it completes the circuit? I noticed when I touched it with a screwdriver and the metal part of the steering column the horn would sound. But if I touched either or both of the lower contacts and the metal part of the steering column...nothing happened. This is really racking my brain!!!!!
Am I correct saying that the top contact pad is the ground and once the spring contacts it it completes the circuit? I noticed when I touched it with a screwdriver and the metal part of the steering column the horn would sound. But if I touched either or both of the lower contacts and the metal part of the steering column...nothing happened. This is really racking my brain!!!!!
Safety Car
Joined: Nov 2005
Posts: 3,961
Likes: 573
From: Lompoc, CA. Santa Barbara County
I played around with the horn again last night... couldn't sleep with this lingering around in my head.
Am I correct saying that the top contact pad is the ground and once the spring contacts it it completes the circuit? I noticed when I touched it with a screwdriver and the metal part of the steering column the horn would sound. But if I touched either or both of the lower contacts and the metal part of the steering column...nothing happened. This is really racking my brain!!!!!
Am I correct saying that the top contact pad is the ground and once the spring contacts it it completes the circuit? I noticed when I touched it with a screwdriver and the metal part of the steering column the horn would sound. But if I touched either or both of the lower contacts and the metal part of the steering column...nothing happened. This is really racking my brain!!!!!
Bee Jay
Thread Starter
Instructor
Joined: Jul 2007
Posts: 150
Likes: 0
From: Lewisville Texas
How did you wire it up? The Momo horn button has 2 wires (one in, one ground out). With the orignal horn not having wires only the three contact points how did you connect it?
Melting Slicks
Joined: May 2007
Posts: 3,246
Likes: 4
From: Bay Area CA
If you changed the hub, they should have provided you with a 'spring contacter' that goes it the ~3/8" hole, through to the contact circle below. It would also have a wire coming out of the the back of it to connect to the center lead on the new horn.
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Melting Slicks
Joined: May 2007
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From: Bay Area CA
Instructor
Joined: Oct 2007
Posts: 132
Likes: 0
From: minnesota
Is it roughly the same size as the oem spring contact (about 3" at the point it contacts with the hub???).
I think the steering column has three contact points for the horn, so does the spring contact all three?
Any chance you have a picture of the part I'm missing?
Thanks
I think the steering column has three contact points for the horn, so does the spring contact all three?
Any chance you have a picture of the part I'm missing?
Thanks
Instructor
Joined: Oct 2007
Posts: 132
Likes: 0
From: minnesota
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Do I need to drill a few holes in my new momo hub to make the horn work with this spring? ALternatively I could just snap off the plastic and hope the spring tension is enough to make sure there's contact between the hub and the horn contacts?!?! Ideas anyone.....
[/IMG]Do I need to drill a few holes in my new momo hub to make the horn work with this spring? ALternatively I could just snap off the plastic and hope the spring tension is enough to make sure there's contact between the hub and the horn contacts?!?! Ideas anyone.....
Le Mans Master
Joined: Dec 2003
Posts: 5,727
Likes: 38
From: Fremont CA
The horn activates by grounding the wire in the steering column. You should be able to test easily enough by grounding different connection points.
My Sparco wheel has an all plastic horn button so I would need to connect factory lead to one side then a ground connection on the other terminal (if I were going to use it.)
Being the kind of guy I am, I am making a quick release wheel so I can preserve my tilt-tele column in my 72 LT-1 and still get in-out of my race seat. I am re-engineering the entire quick release and steering wheel adapter systems to "something of my own creation" which will further delay the deployment of the "Green Meanie" until next year's season.
My Sparco wheel has an all plastic horn button so I would need to connect factory lead to one side then a ground connection on the other terminal (if I were going to use it.)
Being the kind of guy I am, I am making a quick release wheel so I can preserve my tilt-tele column in my 72 LT-1 and still get in-out of my race seat. I am re-engineering the entire quick release and steering wheel adapter systems to "something of my own creation" which will further delay the deployment of the "Green Meanie" until next year's season.
Instructor
Joined: Oct 2007
Posts: 132
Likes: 0
From: minnesota
hmmmmmm, so how do I get to the pesky factory lead wire.
I've taken the oem hub off and all I see are contact points. Please don't tell me I need to strip that column down further!!
I was thinking of connecting the large spring to the new hub, and then soldering a wire to it to make the lead connection for the new horn. Providing I feed it through the plastic sleeve, I think it should work. I've got no problem grounding the new horn switch. It's that bloody lead wire I'm scratching my head over.
I've taken the oem hub off and all I see are contact points. Please don't tell me I need to strip that column down further!!
I was thinking of connecting the large spring to the new hub, and then soldering a wire to it to make the lead connection for the new horn. Providing I feed it through the plastic sleeve, I think it should work. I've got no problem grounding the new horn switch. It's that bloody lead wire I'm scratching my head over.
Last edited by autimous; Oct 18, 2009 at 08:47 PM.
