Should negative side of coil be grounded?
Should negative side of coil be grounded?
The simple answer is no, the coil case does not have to be grounded for the ignition to work properly. The coil does not need an electrical ground, but it does need a thermal ground for heat dissipation, meaning that the “ground” could be compromised by paint etc.
Where is the positive coil wire on a car?
Locate the positive coil wire, which runs from the ignition switch to the positive terminal of the ignition coil. On later model cars, this wire may run back to the car’s computer or the ignition control module. Connect the positive coil wire to the positive terminal of the ignition coil. Locate the negative coil wire.
Where does the positive ground terminal go on an ignition coil?
For positive ground the “+” terminal goes to the distributor (to be grounded on the engine block). For negative ground the “-” terminal goes to the distributor (to be grounded on the engine block).
How do you wire a 12 volt ignition coil?
How to Wire 12 Volt Coils Disconnect the black negative cable on the negative post of the battery. Look at the ignition coil. Connect one end of the spark plug wire to the large center terminal of the ignition coil. Connect the positive terminal of the ignition coil to the ‘On’ terminal of the ignition switch.
What do you need to know about later issue ignition coils?
Later issue ignition coils are marked “+” and “-” on the primary terminals. These are more no-brainers, as you only need to match the terminal markings to the battery posts. For positive ground the “+” terminal goes to the distributor (to be grounded on the engine block).
Where is the negative coil wire on a car?
Locate the negative coil wire. On most cars made before 1980, this wire connects to the points switch, which is located on the distributor. The distributor connects all of the spark plug wires. Most newer cars do not have a points switch, so that terminal is connected to ground or the negative terminal of the battery.
For positive ground the “+” terminal goes to the distributor (to be grounded on the engine block). For negative ground the “-” terminal goes to the distributor (to be grounded on the engine block).
Later issue ignition coils are marked “+” and “-” on the primary terminals. These are more no-brainers, as you only need to match the terminal markings to the battery posts. For positive ground the “+” terminal goes to the distributor (to be grounded on the engine block).
How do I wire a ballast resistor and coil?
Connect the wire to the unused terminal of the ballast resistor and to the previously identified terminal of the coil. Locate the small gauge wire that comes out of the body of the distributor. Connect this wire to the negative terminal of the coil. Reconnect the negative terminal of the battery.
