The Ford Barn

donQ · 07-13-2013, 09:22 AM

I have a friend who owns a 52 Ford F-1. I noticed that the coil was wired such that the wire from the harness was connected to the plus side and the wire going to the points was the minus side. I thought that with the positive ground system, the + side of the coil should connect to the wire going to the distributor.
Is this right?
Donq

cmbrucew · 07-13-2013, 10:00 AM

Coil should match battery polarity.

Bruce

Works good
Lasts long time

BUBBAS IGNITION · 07-13-2013, 10:24 AM

Like Bruce stated , coil needs to match battery polarity.

Another issue is that once a coil has been ran in a particular0 polarity there is a build up of resisdual magnetism that stays in that coil making it not good to use with another polarity....

oldskool · 07-13-2013, 12:33 PM

Quote:

Originally Posted by donQ

I have a friend who owns a 52 Ford F-1. I noticed that the coil was wired such that the wire from the harness was connected to the plus side and the wire going to the points was the minus side. I thought that with the positive ground system, the + side of the coil should connect to the wire going to the distributor.
Is this right?
Donq

you are correct he has it reversed

zzlegend · 07-13-2013, 03:35 PM

Even though it will run when hooked either way, I never trust the coil markings. This tool will help get it right. I use it on everything. Just a thought.

http://www.brattons.com/product.asp?...=any&PT_ID=all

Ross F-1 · 07-13-2013, 06:17 PM

Sponsored Links (Register now to hide all advertisements)

It also depends if he has changed to negative ground, either 6v or 12v.

donQ · 07-14-2013, 09:33 AM

Thanks for the responses. There were a number of things not right on this truck, this was just one of them.
donQ

07-13-2013, 09:22 AM	#1
donQ Senior Member Join Date: Apr 2011 Posts: 146	coil polarity I have a friend who owns a 52 Ford F-1. I noticed that the coil was wired such that the wire from the harness was connected to the plus side and the wire going to the points was the minus side. I thought that with the positive ground system, the + side of the coil should connect to the wire going to the distributor. Is this right? Donq

07-13-2013, 10:00 AM	#2
cmbrucew Senior Member Join Date: Dec 2010 Location: North of sandy ago, CA. Posts: 2,064	Re: coil polarity Coil should match battery polarity. Bruce Works good Lasts long time

07-13-2013, 10:24 AM	#3
BUBBAS IGNITION Senior Member Join Date: May 2010 Location: SPEEDWAY INDIANA Posts: 4,148	Re: coil polarity Like Bruce stated , coil needs to match battery polarity. Another issue is that once a coil has been ran in a particular0 polarity there is a build up of resisdual magnetism that stays in that coil making it not good to use with another polarity.... __________________ If it Makes Spark, we do it !!!! www.bubbasignition.com [email protected]

07-13-2013, 03:35 PM	#5
zzlegend Senior Member Join Date: May 2010 Location: Reseda, Calif. Posts: 2,188	Re: coil polarity Even though it will run when hooked either way, I never trust the coil markings. This tool will help get it right. I use it on everything. Just a thought. http://www.brattons.com/product.asp?...=any&PT_ID=all

07-13-2013, 06:17 PM	#6
Ross F-1 Senior Member Join Date: Nov 2010 Location: NM Posts: 2,438	Re: coil polarity Sponsored Links (Register now to hide all advertisements) It also depends if he has changed to negative ground, either 6v or 12v. __________________ '52 F-1, EAB flathead

07-14-2013, 09:33 AM	#7
donQ Senior Member Join Date: Apr 2011 Posts: 146	Re: coil polarity Thanks for the responses. There were a number of things not right on this truck, this was just one of them. donQ