The Ford Barn

poolplayer1 · 01-27-2019, 02:57 PM

Hello everyone here. I have a question on the electrical system of my car. I was doing some rewiring yesterday and noticed that the wire coming off the negative side of the coil is connected to the dist. The car is running great but just wanted to make sure that this is ok. I have always heard that if its not broke,don't fix it. Let me know what you guys think about this.
Since its a positive ground system,I thought that the wire going to the dist. from the coil should be the positive wire but not sure.Let me know what you guys think about this. Thanks for your help.

JSeery · 01-27-2019, 03:46 PM

The coil is connected backwards, the (+) terminal should be connected to the distributor. They will run with reversed polarity, but it greatly reduces the ignition performance.

rotorwrench · 01-27-2019, 06:06 PM

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A polarity check with either the pencil lead method or a Sparklite tester if a person wants to know for sure. In the 6-volt era, a lot of coils were marked Dist on one terminal and Bat on the other but that changed in the 12-volt era. Generally it would be the + side that is connected to the breaker points but I don't trust the 3rd world manufacturers to know the difference or care it it's correct or not. The way the primary coil is connected to the other end of the secondary coil inside there is what makes the difference. Here is an old link. https://mgaguru.com/mgtech/ignition/ig104.htm

01-27-2019, 02:57 PM	#1
poolplayer1 Senior Member Join Date: Sep 2015 Posts: 399	1952 ford inline 6/ 6 volt positive system 215 motor Hello everyone here. I have a question on the electrical system of my car. I was doing some rewiring yesterday and noticed that the wire coming off the negative side of the coil is connected to the dist. The car is running great but just wanted to make sure that this is ok. I have always heard that if its not broke,don't fix it. Let me know what you guys think about this. Since its a positive ground system,I thought that the wire going to the dist. from the coil should be the positive wire but not sure.Let me know what you guys think about this. Thanks for your help.

01-27-2019, 03:46 PM	#2
JSeery Member Emeritus Join Date: Nov 2012 Location: Wichita KS Posts: 16,132	Re: 1952 ford inline 6/ 6 volt positive system 215 motor The coil is connected backwards, the (+) terminal should be connected to the distributor. They will run with reversed polarity, but it greatly reduces the ignition performance.

01-27-2019, 06:06 PM	#3
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 16,422	Re: 1952 ford inline 6/ 6 volt positive system 215 motor Sponsored Links (Register now to hide all advertisements) A polarity check with either the pencil lead method or a Sparklite tester if a person wants to know for sure. In the 6-volt era, a lot of coils were marked Dist on one terminal and Bat on the other but that changed in the 12-volt era. Generally it would be the + side that is connected to the breaker points but I don't trust the 3rd world manufacturers to know the difference or care it it's correct or not. The way the primary coil is connected to the other end of the secondary coil inside there is what makes the difference. Here is an old link. https://mgaguru.com/mgtech/ignition/ig104.htm