The Ford Barn - View Single Post - Dual horns

rotorwrench · 11-26-2019, 06:48 PM

I had points & armature mixed. The air gap is for the armature. Sometimes metal bits will get in there and keep the armature from moving properly. The point gap has to be adjusted by current draw. But they should be closed when the coil is at rest and no power applied. The breaker points gap regulates the oscillation distance. Most manufacturers have info about adjustments but I'd have to do some digging to see if I have any instructions for Ford types. I'm sure there were several manufacturers of them but I don't know about the trumpet types. They were used in the 40s but I can't remember the applications. All I could find was that they draw 24 to 28 amps total with dual horns.

11-26-2019, 06:48 PM	#10
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 16,436	Re: Dual horns - Wiring I had points & armature mixed. The air gap is for the armature. Sometimes metal bits will get in there and keep the armature from moving properly. The point gap has to be adjusted by current draw. But they should be closed when the coil is at rest and no power applied. The breaker points gap regulates the oscillation distance. Most manufacturers have info about adjustments but I'd have to do some digging to see if I have any instructions for Ford types. I'm sure there were several manufacturers of them but I don't know about the trumpet types. They were used in the 40s but I can't remember the applications. All I could find was that they draw 24 to 28 amps total with dual horns.