trevorgilby Posted March 21 Report Share Posted March 21 This is my first post on the forum having recently joined after owning my first TR6, a 1971 PI in red. Anyway the horn doesn't work and when I took off the centre horn push there is a small nut in the centre and tfsts it. I think I need a metal plate or wire to connect it to the small shaft that sits to one side of the wheel retaining bolt. I am no electrician but tried to connect said nutcwith said shaft and got a beep of the horn when pressing the centre whilst grounding the side ring onto the wheel. If you could help me that would be great Quote Link to post Share on other sites
JohnC Posted March 21 Report Share Posted March 21 There should be a hole in the boss with a spring-loaded horn pencil in it (plastic tube with metal contacts either end). That connects the ring to a contact on the horn push, which in turn is grounded via the boss. Quote Link to post Share on other sites
trevorgilby Posted March 21 Author Report Share Posted March 21 I have the pencil but nothing on the underside of the horn push to connect to the end of the pencil Quote Link to post Share on other sites
Waldi Posted March 21 Report Share Posted March 21 If you can beep the horn when making contact between the spring-loaded pin and mass (like the nut that keeps the steering wheel fixed), the button is the likely culprit. The button should have a brass(?) plate the connects to the metal spring which is at the side of the push. This provides the electrical path from pin to mass when you press the button. Waldi Quote Link to post Share on other sites
trevorgilby Posted March 21 Author Report Share Posted March 21 Sounds like I am missing a metal plate that connects horn push centre nut to pencil. That connection is constantly made, right and the horn sounds when you push thr horn button and it breaks the connect to earth? Quote Link to post Share on other sites
trevorgilby Posted March 21 Author Report Share Posted March 21 Thanks all for your help. Quote Link to post Share on other sites
Waldi Posted March 21 Report Share Posted March 21 It’s the other way Trevor, pushing the button “shorts” the horn circuit to mass. Waldi Quote Link to post Share on other sites
JohnC Posted March 21 Report Share Posted March 21 2 hours ago, Waldi said: It’s the other way Trevor, pushing the button “shorts” the horn circuit to mass. But, either way, it sounds like you're right. There should be a metal contact extending from the small nut in the centre of the horn push to make contact with the end of the pencil. The problem is always related in some way to the nut at the wheel... John Quote Link to post Share on other sites
RobH Posted March 21 Report Share Posted March 21 This old thread has some photos that might help: Quote Link to post Share on other sites
JohnC Posted March 21 Report Share Posted March 21 Sorry, senior moment - I have a Motolita wheel so the original setup may be different... John Quote Link to post Share on other sites
stuart Posted March 21 Report Share Posted March 21 Your horn push should have a Copper strip that goes from that centre nut to contact with the pencil. Stuart. Quote Link to post Share on other sites
JohnC Posted March 21 Report Share Posted March 21 11 minutes ago, stuart said: Your horn push should have a Copper strip that goes from that centre nut to contact with the pencil. But is there a nut behind the wheel? Quote Link to post Share on other sites
stuart Posted March 21 Report Share Posted March 21 1 minute ago, JohnC said: But is there a nut behind the wheel? Stuart. Quote Link to post Share on other sites
John L Posted March 21 Report Share Posted March 21 (edited) Sorry didnt read the start correctly, not this bit then..... This is the part, https://www.moss-europe.co.uk/brush-horn-push-contact-142534.html?assoc=131020 There are 2 lengths to suit, but not sure how it works with your steering wheel. John Edited March 21 by John L Quote Link to post Share on other sites
Hawk Posted March 22 Report Share Posted March 22 I had also sorts of issues with my horn push and ended up relocating my horn switch to the dashboard. Quote Link to post Share on other sites
trevorgilby Posted Wednesday at 08:13 PM Author Report Share Posted Wednesday at 08:13 PM Feel really bad that I didnt say thanks for all your replies and help. Been busy with another problem with ignition switch! Anyway I was missing the metal plate from centre nut to pick up the contact on the pin. Made one up from a piece of copper and it works perfectly. Quote Link to post Share on other sites
B Fitzpatrick Posted Thursday at 03:58 PM Report Share Posted Thursday at 03:58 PM On 3/21/2024 at 12:39 PM, JohnC said: But is there a nut behind the wheel? Sorry about this John but Stuart’s response gave me a good chuckle - glad you got sorted Quote Link to post Share on other sites
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