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| | | Forums66 Topics128,080 Posts1,056,063 Members48,433 | | 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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For helping keep this great
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on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Jul 2013 Posts: 863 Shop Shark | | Shop Shark Joined: Jul 2013 Posts: 863 | I've got my original Delco Remy horn mounted on the intake manifold to sound on my '49 Chevrolet 1/2 ton. Questions: How much spark should I see from the points? I have a slight spark from the points right now. What should the air gap be between the diaphragm and front plate? The front plate is about 1/16" from the diaphragm at this point. Anyone have the specifications for setting the proper point setting and air gap on these horns?
Tim
"Pay attention to the details! It ALWAYS pays off."
1949 Chevrolet 3100 Series 1/2 ton Pickup 1964 Chevrolet C10 (Ol' Yella) (SOLD) 1958 Chevrolet Biscayne 2 door (SOLD) 1970 VW Beetle
| | | | | Joined: Jan 2016 Posts: 631 'Bolter | | 'Bolter Joined: Jan 2016 Posts: 631 | One method........keep adjusting until it sounds right. | | | | | Joined: Mar 2002 Posts: 9,115 'Bolter | | 'Bolter Joined: Mar 2002 Posts: 9,115 | At one point I hooked mine up to a battery charger. The pulsing DC from the charger caused the horn to work after a fashion. This gave me hope because I could make it come alive. I then experimented with the point adjustment. | | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | 47-52 standard-horn adjustment - as described above by showkey & truckernix. | | | | | Joined: Jul 2013 Posts: 863 Shop Shark | | Shop Shark Joined: Jul 2013 Posts: 863 | Thanks guys! I GOT IT. Adjusted the points with a multimeter. Set it to ohms, placed probes on the positive and negative terminals and got the points set at 0.5 - 0.8 ohms and the sound is GREAT!!
Tim
"Pay attention to the details! It ALWAYS pays off."
1949 Chevrolet 3100 Series 1/2 ton Pickup 1964 Chevrolet C10 (Ol' Yella) (SOLD) 1958 Chevrolet Biscayne 2 door (SOLD) 1970 VW Beetle
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