I want to save the super loud horns on my 1952 Cadillac . The fuse keeps blowing and I pinpointed the problem to only 1 of the horns. As I use this one on a wire with fuse the fuse burns. I opened this one and found no visible problems at first sight. Can some of you old school electricity goeroes help me out? It would be a same to replace this one with a new, ugly one;-) Many thanks, Ramon Verzonden vanaf mijn iPhone met H.A.M.B. View attachment 5011212 View attachment 5011213 View attachment 5011214
I'm far from a guru on electricity. But, just confirming whether all of the factory relays, grounding etc. are in place from the horn ****on on the steering wheel all the way to the parts making the loud "get outa the way" noise.
Simple to find out with horn off. Just attach a good ground and then tap the hot side with a hot lead from a battery source. If it works that way, then there is a bare wire somewhere in between it and the junction box.
That appears to be one that can be serviced and adjusted. A horn is basically a motor, it goes back-and-forth instead of rotating. Check/clean the contacts, if they're pitted clean them with a fine file. There should be an adjusting screw that sets spring tension and contact gap on the contacts, adjusting that sets both volume and current draw. Excessive current draw will take out the fuse. There's probably a spec for current draw in the factory service manual but lacking that info I'd guess adjusting it to about 5-7 amps would get you in the ballpark....
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