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Mod | | | Forums66 Topics128,072 Posts1,055,906 Members48,429 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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old truck web site
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with Ads!  Again, thanks!
| | | | Joined: Jun 2010 Posts: 1,001 Shop Shark | | Shop Shark Joined: Jun 2010 Posts: 1,001 | So, I cannot get the horn to work on my '52 with 12v conversion. I assumed the original wiring scheme that does NOT include a horn relay would work just fine especially due to the 12v conversion (less amperage). But, it does not work. The cheap as heck horn contacts that you get from the vendors relies on a light gauge spring to conduct the entire current required by the horn. The resultant load produced heat ruins the spring to the point it collapses and no longer allows the contacts to make contact to the mast bearing.
So, I am adding a relay to the circuit AND am going to find a better spring for the horn contact mouse trap. Re-pop parts...ugh! The original has a heavy wire inside the spring connecting the two contacts.
Last edited by DavidF; 06/30/2014 4:15 PM.
| | | | | Joined: Jan 2010 Posts: 4,263 Shop Shark | | Shop Shark Joined: Jan 2010 Posts: 4,263 | Yes I went back to my old 6v plunger Heavier spring | | | | | Joined: Jun 2010 Posts: 1,001 Shop Shark | | Shop Shark Joined: Jun 2010 Posts: 1,001 | Yep, mine is worn like yours (grove at mast bearing end), but I am missing the casing entirely. Just have the metal contacts connected by wire and spring. | | |
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