 Momo Steering Wheel, horn wiring... |
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| OllieG |
 Apr 13 2015, 09:22 AM
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#1
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OllieG  Group: Members Posts: 212 Joined: 6-July 11 From: UK Member No.: 13,282 Region Association: England  |
I know it's been discussed a fair bit so bear with me…
Just got a lovely 6-conv shipped from the US - I'm in the process of getting it road-legal here in the UK. The car has no horn..(is that legal in the US?) Anyway I've found the wires to install the horns themselves under the bumper - black/yellow wire and a brown (ground) wire right? OK, next problem is the car has a momo steering wheel and horn-push. The horn push has two connectors at the back. One for the ground-wire which is clearly visible coming through the mono adaptor hub…but no sign of the ring wire for the second connector. So tell me if I'm wrong, but I need to remove the steering wheel and locate the ring wire…right? Is the wire itself obvious?…what should I be looking for?…colour? Thanks all. |
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| Mike Bellis |
Apr 13 2015, 09:32 AM
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#2
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Resident Electrician Group: Members Posts: 8,345 Joined: 22-June 09 From: Midlothian TX Member No.: 10,496 Region Association: None 
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Many Momo hubs are missing the ring. I used a stock ring from a 924 steering wheel to bolt to the Momo hub.
BTW, is is NOT legal to drive a car without a horn in the US. There is not much enforcement. In California for example the state stopped annual inspections decades ago. Now you will only get a citation if you have an over zealous cop with a grudge. In other states with inspections, you will not be allowed to drive it until it's fixed. |
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| Dave_Darling |
Apr 13 2015, 09:56 AM
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#3
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914 Idiot Group: Members Posts: 14,986 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California
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Solid brown wire? Always a ground, unless someone has been "creatively" re-wiring. Sounds like this is a 72+ car? Those have a different setup than the 70-71 cars for the horn.
There should be a single wire coming up the steering column. When that wire gets grounded, it trips the relay, sending power to the horn. So what you need to do is to set it up so that the wire gets grounded when you press the horn button. Verify that grounding the wire makes the horn sound with the key on. If so, then all you have to do is hook the wire up to one of the connectors on the horn button, and a grounded wire to the other. --DD |
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| OllieG |
Apr 13 2015, 01:54 PM
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#4
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OllieG Group: Members Posts: 212 Joined: 6-July 11 From: UK Member No.: 13,282 Region Association: England |
Thanks guys…I'll take the steering wheel off and see if I can find the wire.. Provided I find it, all 'should' be well.
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| Mike Bellis |
Apr 13 2015, 02:11 PM
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#5
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Resident Electrician Group: Members Posts: 8,345 Joined: 22-June 09 From: Midlothian TX Member No.: 10,496 Region Association: None
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You are looking for something similar to this.
 http://www.ebay.com/itm/PORSCHE-924-AND-92...B-/390864328390 |
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| OllieG |
Apr 14 2015, 02:25 PM
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#6
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OllieG Group: Members Posts: 212 Joined: 6-July 11 From: UK Member No.: 13,282 Region Association: England |
QUOTE(Mike Bellis @ Apr 13 2015, 09:11 PM)  You are looking for something similar to this. http://www.ebay.com/itm/PORSCHE-924-AND-92...B-/390864328390 How about this? It's from a Beetle/T2 Camper…I'll ask the seller on ebay UK what diameter it is. (IMG:http://www.914world.com/bbs2/uploads_offsite/i1235.photobucket.com-13282-1429043114.1.jpg) |
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| GregAmy |
Apr 14 2015, 03:02 PM
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#7
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Advanced Member Group: Members Posts: 2,302 Joined: 22-February 13 From: Middletown CT Member No.: 15,565 Region Association: North East States
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QUOTE(OllieG @ Apr 14 2015, 03:25 PM) How about this? It's from a Beetle/T2 Camper…I'll ask the seller on ebay UK what diameter it is. Is that a new part? I could use one of those for my '74 2L... |
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| OllieG |
Apr 14 2015, 03:06 PM
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#8
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OllieG Group: Members Posts: 212 Joined: 6-July 11 From: UK Member No.: 13,282 Region Association: England |
QUOTE(GregAmy @ Apr 14 2015, 10:02 PM) QUOTE(OllieG @ Apr 14 2015, 03:25 PM) How about this? It's from a Beetle/T2 Camper…I'll ask the seller on ebay UK what diameter it is. Is that a new part? I could use one of those for my '74 2L... Yep, it's a new part - 'looks' like it will work.. |
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| Mike Bellis |
Apr 14 2015, 04:11 PM
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#9
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Resident Electrician Group: Members Posts: 8,345 Joined: 22-June 09 From: Midlothian TX Member No.: 10,496 Region Association: None
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There is a difference in the connector location verses the cancel tab. As the turn signals try to cancel after a turn, they may not cancel or may cancel early depending on steering wheel rotation. The wire connector will locate the tab since there is a hole in the hub for it. The tab should be oriented like the Porsche unit.
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| GeorgeRud |
Apr 14 2015, 04:16 PM
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#10
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Advanced Member Group: Members Posts: 3,725 Joined: 27-July 05 From: Chicagoland Member No.: 4,482 Region Association: Upper MidWest |
I'd bet that Porsche used the VW horn ring, but without seeing them next to each other, couldn't say for sure. The brown wire does in fact connect the ground to the horn circuit.
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