The Ford Barn

Teltruck · 02-16-2018, 09:41 PM

Have a 1947 Ford with a Mallory Magnetic Breakless Distributor Part No. 5071601. With a 59AB Engine. Was running fine then it started to miss and backfire. The circuit diagram shows a Ballast Resister and a coil. What would be
The value of the resister and what voltage should there be at the coil? It's a 12 Volt Negative ground system. Any help would be greatly appreciated. Thamks,
Bob
Volt

BUBBAS IGNITION · 02-17-2018, 10:36 AM

You need approx 3.0 ohms in the primary circuit. A 1.5 ohm coil and a 1.5 ohm resistor would work well. Also the Bosch Blue coil has 3.0 ohms and dont need a resistor..

Teltruck · 02-17-2018, 11:57 AM

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Bubba:
Thanks very much!
Bob

02-16-2018, 09:41 PM	#1
Teltruck Senior Member Join Date: Feb 2011 Location: Southern Mass Posts: 195	Mallory Electronic Ignition Have a 1947 Ford with a Mallory Magnetic Breakless Distributor Part No. 5071601. With a 59AB Engine. Was running fine then it started to miss and backfire. The circuit diagram shows a Ballast Resister and a coil. What would be The value of the resister and what voltage should there be at the coil? It's a 12 Volt Negative ground system. Any help would be greatly appreciated. Thamks, Bob Volt

02-17-2018, 10:36 AM	#2
BUBBAS IGNITION Senior Member Join Date: May 2010 Location: SPEEDWAY INDIANA Posts: 4,148	Re: Mallory Electronic Ignition You need approx 3.0 ohms in the primary circuit. A 1.5 ohm coil and a 1.5 ohm resistor would work well. Also the Bosch Blue coil has 3.0 ohms and dont need a resistor.. __________________ If it Makes Spark, we do it !!!! www.bubbasignition.com [email protected]

02-17-2018, 11:57 AM	#3
Teltruck Senior Member Join Date: Feb 2011 Location: Southern Mass Posts: 195	Re: Mallory Electronic Ignition Sponsored Links (Register now to hide all advertisements) Bubba: Thanks very much! Bob