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Registered User
Join Date: Nov 2010
Posts: 26
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Horn Troubles
Was wondering if someone can help me with horn issue I am having.
Here is what I know I know the ring on the back of steering wheel is fine because I can attach wire to the wire coming off the ring and touch ground on the car and the horn goes off. I know that the steering shaft is not grounded because if you take that wire coming off the steering wheel ring I should be able to touch the steering shaft with it and have the horn go off. And it does not. I know there was ground wire that goes from the cross member to the rack and pinion and I have tested that we are grounded I even replaced the wire with heavy power ground cable and so I know Rack is grounded good. What I am not sure of is another way that steering shaft gets grounded other than coming off the Rack? I need to get this car inspected so I can transfer the plates over to TX and any help would be much appreciated. Thanks Shawn |
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04-28-2011, 06:56 AM
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James Chimney
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get one of those bumper stickers "horns broke, watch for finger" sorry could not resist all in good fun
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04-28-2011, 10:36 AM
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Registered
Join Date: Jul 2004
Location: Upstate New York
Posts: 3,261
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The steering column is grounded through the universal joints on the steering shaft, then through the ground wire (or strap, in your case) to a screw in the crossmember.
If there is any play in the steering shaft universal joints, you will lose your ground. I would next go there.
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Good luck, George Beuselinck |
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04-28-2011, 10:45 AM
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Join Date: May 2009
Location: Hawkinsville / Perry, Ga.
Posts: 1,239
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Hi Shawn, One sure way to ground the steering column is to mount a 1/4" wide flat steel clip around the column and then to the frame. We do this on fuel lines on aircraft all the time for a continuous grounding.
Cheers, Larry
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Retired USAF and Civil Service, 1985.5 NA Graphite Metallic, A never ending work in progress, 1992 968 Horizon Blue Cab "New Toy" 
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04-28-2011, 07:17 PM
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Join Date: May 2007
Posts: 8
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I'd love to see a diagram or better description for the 1/4" clip. How does that allow the sterring column to rotate round and round?
On my 944, I had to replace the steering linkage to get the continuous ground.
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Joel 87-944 Automatic 300,000 mi 83-944 5 speed 550,000 mi |
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04-30-2011, 02:30 PM
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Banned
Join Date: Apr 2011
Posts: 683
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Quote:
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04-30-2011, 02:50 PM
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Registered
Join Date: May 2007
Posts: 8
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The clip wont work - the ground path has to go through the universal joint in the steering column...and the only way to do it is to replace the steering shaft. It's an easy job, it's done entirely in the engine bay. Read what George said above. It's the only way to repair it as original.
Plus the lack of a proper ground through the shaft is an indication that the bearings are beginning to fail - which could eventually be dangerous...
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Joel 87-944 Automatic 300,000 mi 83-944 5 speed 550,000 mi |
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04-30-2011, 03:20 PM
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Banned
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04-30-2011, 03:23 PM
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Registered User
Join Date: Nov 2010
Posts: 5
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If I understand the thread, does the horn spontaneously sounding at full steering wheel lock indicate a forced ground through the steering column? Any ideas on this issue?
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05-21-2011, 02:17 PM
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Registered
Join Date: May 2009
Location: Colorado Springs, CO
Posts: 721
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Huh? Which issue. His horn isn't working at all. Unless he takes it apart and manualy grounds it. You could easily coil a wire around the shaft thus allowing it to coil and uncoil. This would be possibly dangerous. Fix the underlying issue.I though the shaft is grounded through the shaft bearing at the support point. Its a metal ball bearing right?the whole thing should be full of continuity to ground. Am I wrong?
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82 928 s3&1/2 5 Speed LSD conversion 87 944 N/A 5 Speed (Under Construction) 81 931 (maybe for sale, well their all for sale lol) Always looking for a good deal. Hello, my name is Carl and im a Poschaholic Last edited by vdubr928; 05-21-2011 at 07:56 PM.. |
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05-21-2011, 07:52 PM
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Registered User
Join Date: Nov 2010
Posts: 5
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We have a separate issue - and I am trying to find the fix. Horn is grounded and works correctly in the steering wheel neutral direction. When the steering wheel is at full lock, the horn spontaneously sounds. Any ideas?
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05-22-2011, 12:43 AM
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Registered
Join Date: May 2009
Location: Colorado Springs, CO
Posts: 721
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Start a new thread. Don't hijack this one. Sounds like a short cause by a bad shaft bearing though. Back to the op issue.
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82 928 s3&1/2 5 Speed LSD conversion 87 944 N/A 5 Speed (Under Construction) 81 931 (maybe for sale, well their all for sale lol) Always looking for a good deal. Hello, my name is Carl and im a Poschaholic |
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05-22-2011, 06:27 AM
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1985 Porsche 944
