A question on the Samba about the “interchangeability” of horn contact rings made me get off my duff and fix a nagging problem of intermittent horn function on my ’86 Syncro. Someone in the past had made a fairly neat fix with copper wire to form a contact ring, but it only worked when steering wheel at a certain angle 🙂
I had a known good ring on the steering wheel of my ’82 Westy, so I whipped both wheels off, 24 mm socket (15/16″ also works) on nut, and swapped the contact rings. direct fit, no problems even though the steering wheels themselves are different. You just pry the ring out with a flat bladed screwdriver. Pics below show the two wheels and the home made contact ring. The larger of the two wheels is, of course, from the non power steering ’82.
#1 by El Pedro on May 10, 2010 - 8:42 am
Did you lubricate the ring in any way? Mine’s been making a bit of a rubbing noise as I turn the wheel, but I don’t want to foil the electrical properties by lubricating the ring if that’s not appropriate. Bentley wasn’t much help on this topic. But I did end up buying a nice new torque wrench to make sure I got that nut back on tight at 50 ft-lbs.
#2 by albell on May 10, 2010 - 8:50 am
the ring that I swapped in had a bit of grease still on it, looked like white lithium grease. I must have put that on originally years ago. I think a very small smear of silicone grease would be fine, oh heck probably any grease would do.
But you might find that the noise is being made by a worn and ragged copper contact on the steering column. I believe its beryllium copper (a springier, harder, and very toxic copper alloy) and it does wear out (from lack of lube?). Have a look and see if you can’t fix that bit, bending carefully so a new contact surface is presented