Horny

In the bleak mid-winter, when the UK was buried under four feet of snow, the Defender, whilst not at all phased by the onset of a new ice age, developed a mystifying electrical snag where the horn, the alarm and various other bits and pieces would immediately and persistently sound off as soon as the key was removed from the ignition. This was eventually traced to the near-side front side light, and a short feed which was sending a spurious signal to the "BCU" or body control unit, a device installed to prove that electronics don't belong in Land Rovers. Even a tiny leakage of voltage at the wrong point and all hell is let loose in the micro-circuitry that governs everything from the fog lights to the rear wiper. Why systems that've survived for decades using simple elementary electrical principles need the addition of silicon is beyond me.
But anyway, since then, the air horns on the Land Rover have never really worked properly. Having replaced the mute horns with traditional old skool electrics ones a few eeks ago, I thought it was about time to see if the old ones actually worked or if it was the tiddly compressor supplied with them that had given up.
Now, in the garage I have a small workshop compressor for powering tools or pumping up tyres and since this had pressure left in it from another job it seemed like a good idea to test the horns.

I'm happy to report they still work really well, and that 40psi really is more than enough to make a noise. Lots of noise. I think I can still hear it echoing off the brickwork of the surrounding houses.