Negative Ground Wiring Diagram

This is called negative ground since the negative side of the battery is grounded to earth.

Negative ground wiring diagram. Then engineers discovered that with positive voltage on the copper wires copper wires age quickly due to electrolysis. Prior to 1955 when automotive electrical systems upgraded to 12 volts and negative ground electrical systems became the recognized standard some automotive manufactures like ford build their vehicles using a positive ground electrical system while others like general motors and the independents who bought their electrical components from general motors built their vehicles using a negative. Most modern vehicles use a negative ground system that involves wiring the vehicle chassis to the negative side of the battery and this has many advantages over positive ground systems. Positive cable from battery to ground location on frame.

A lot of systems depend on you knowing this essential information. The wiring diagram shown below was obtained from pertronix to show the proper hookup for a pertronix igniter in a car wired for positive ground or earth if you prefer. Diagrams show the best way that i have found to convert your 6 volt positive ground n series tractor to 12 volts negative ground a tractor s regulator takes the voltage provided by the battery manages it by reducing it and sends it on to the alternator or generator at a. Other than mounting the solenoid separate from the starter the wiring is the same as the side distributor 8n tractor.

Pertronix igniter wiring for positive ground cars. The shop manual says it has a positive ground but the 6 volt battery thats in it has been installed as a negative ground. Our tech department shows you a quick and accurate way. To the coil on a positive ground car like a model a 9n 2n 8n ford tractor may 03 simple visual explanation of the wiring of the 6 volt generator regulator on my farmall super a 6 volt positive ground.

Often it is necessary to provide a stronger ground than the negative output of an alarm or keyless entry can provide. Ammeter wiring for a 6 v positive ground alternator sign in to follow this. Bendtsen s speed gems 477 views. Find a copy of a positive groung wiring diagram to prove it to yourself.

1953 packard convertible 6 volt positive ground to 12 volt negative ground conversion duration. Weak negative output to strong ground output relay wiring diagram. It goes without saying that this is valid only for cars without ballast resistors viz our t series cars. Wiring diagram for 1951 truck.

It is not always easy to tell if your car is positive or negative ground.