On distributors with the pickup separate from the module assembly, you can check the pickup using your Ohm meter. Connect the leads from your Ohm meter to the 2 leads of the pickup. If you show a resistance of 50 to 200 Ohms, the pickup is functioning correctly.
How many ohms should a pickup coil read?
For the pick up coil (magnetic pick up assembly), connect your ohmmeter between the orange and purple wires. Resistance should be 400-800 ohms.
How does a distributor pickup coil work?
They are located inside the distributor and function as the trigger for the ignition system to produce spark. The pickup coil monitors the rotation of the distributor and triggers the ignition system at the optimal moment to produce the best timed spark for best engine performance.
How does a distributor magnetic pickup work?
The magnetic pickup is actually a wire that is wound around a magnet to create a magnetic field. Whenever this field changes, due to another metal object coming into the field, a voltage is generated. MSD uses this voltage as a trigger sig- nal for the ignition control.
What is the pick up in a distributor?
Purpose. The distributor is an integral component of the ignition system, routing voltage from the ignition coil to fire the engine’s spark plugs in sequence. The pickup coil determines this firing order as it spins within the distributor, using a magnetic sensor in place of mechanical breaker points.
Can you test a distributor?
Pull a plug wire off the distributor test each one. A screwdriver can be used to check the arc when the ignition is turned. Put the metal part of a screwdriver against the metal of the plug wire. Place the metal screwdriver near the electrode of the distributor.
Why is it called a pickup coil?
A coil of wire doesn’t respond to a magnet field but rather to a change in magnetic flux through its ends. Such a coil is commonly called a pickup coil or a search coil.
How is voltage induced in the distributor pickup coil?
As the tooth passes the core, the magnetic field lines get extended. This action is repeated every time the tooth passes through the core. The moving lines of magnetic force cut across the coil windings and induce a voltage signal.
