The Ford Barn

V848 Ford · 10-20-2015, 12:56 AM

Can anybody tell me if you can check a coil with a volt ohme meter to see if it is any good ?

Charlville · 10-20-2015, 02:56 AM

This may help?

http://www.aa1car.com/library/ignition_coils.htm

Mike V. Florida · 10-20-2015, 03:21 AM

1.2 ohms on the primary and 3,200 to 4,400 on the secondary. Primary should draw 4 1/2 amps if you have a power supply.

Tom Wesenberg · 10-20-2015, 07:33 AM

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Ohm readings is a good preliminary check, but you need to run the coil to be sure the spark doesn't short to the case or jump across the tower to a terminal. Also be sure to run it long enough to get it to normal operating temperature. The same goes for the condenser.

10-20-2015, 12:56 AM	#1
V848 Ford Member Join Date: Jul 2010 Posts: 99	checking a coil for a Model A? Can anybody tell me if you can check a coil with a volt ohme meter to see if it is any good ?

10-20-2015, 02:56 AM	#2
Charlville Senior Member Join Date: Nov 2012 Location: West Berkshire, United Kingdom Posts: 368	Re: checking a coil for a Model A? This may help? http://www.aa1car.com/library/ignition_coils.htm __________________ Kevin Flood West Berkshire UK Member MAFCGB, VHRA, SAH, Brooklands Trust Sporadic progress on My 1929 Sport Coupe can be found here along with my blog http://automotiveamerican.com/

10-20-2015, 03:21 AM	#3
Mike V. Florida Senior Member Join Date: May 2010 Location: Florida between Sarasota and TampaSouth Florida Posts: 14,054	Re: checking a coil for a Model A? 1.2 ohms on the primary and 3,200 to 4,400 on the secondary. Primary should draw 4 1/2 amps if you have a power supply. __________________ What's right about America is that although we have a mess of problems, we have great capacity - intellect and resources - to do some thing about them. - Henry Ford II

10-20-2015, 07:33 AM	#4
Tom Wesenberg Senior Member Join Date: May 2010 Location: Mpls, MN Posts: 27,582	Re: checking a coil for a Model A? Sponsored Links (Register now to hide all advertisements) Ohm readings is a good preliminary check, but you need to run the coil to be sure the spark doesn't short to the case or jump across the tower to a terminal. Also be sure to run it long enough to get it to normal operating temperature. The same goes for the condenser.