How is an ignition coil wired?
The primary circuit wire goes into the coil through the positive terminal, loops around the primary windings, then exits through the negative terminal. An electrical transformer, the ignition coil is considered the heart of the ignition system.
Does the distributor wire go to the positive or negative side of the coil?
Original production coils were generally marked on the primary terminals “SW” for Switch and “CB” for Contact Breaker. 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 an ignition coil to a distributor?
The distributor is what gets that high voltage from the coil to the right cylinder. The connection is accomplished through a cap and rotor. The ignition coil connects to the rotor, and the rotor spins around inside the cap.
Where does the coil wire go on a car?
Connect the positive coil wire to the positive terminal of the ignition coil. 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.
Where does the distributor connect the spark plugs?
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. On vehicles made before 1980, connect the points wire to the negative terminal of the coil.
How do you remove a coil from an ignition coil?
Use a nut driver or a small wrench to loosen the securing nuts on the coil terminals and remove the leads; the positive side of the coil has a condenser lead attached in addition to a positive lead. Then loosen the bottom clamp screw, pull out the center cable that goes to the distributor and remove the coil.