STARTER

A starter is a device used in internal combustion engines to initiate the engine's operation. Here's a simplified explanation of how a starter works:

Engagement: When you turn the ignition key (in older cars) or press the start button (in newer cars), it sends an electrical signal to the starter solenoid.

Solenoid Activation: The starter solenoid is an electromagnet that, when energized by the electrical signal, pulls a plunger or lever mechanism. This action engages the starter gear (also called a Bendix gear) with the engine's flywheel or flexplate.

Rotation: Once engaged, the starter motor receives electrical current from the battery. This current flows through the starter motor windings, generating a magnetic field that interacts with the motor's armature (a rotating shaft with wire windings).

Motor Rotation: The interaction between the magnetic field and the armature causes the armature to rotate rapidly. This rotation is transferred through the starter gear to the engine's flywheel or flexplate.

Engine Start: As the flywheel or flexplate turns, it initiates the engine's cycle, where fuel and air are mixed and ignited, and the engine begins to run under its own power.

Disengagement: Once the engine starts running, a mechanism in the starter, often a one-way clutch or an overrunning clutch, disengages the starter gear from the flywheel or flexplate. This prevents the starter motor from continuing to turn once the engine is running.

Return: The starter solenoid releases the plunger or lever, disengaging its mechanism from the starter gear, readying the starter for the next start cycle.

This process enables the engine to start smoothly and reliably whenever the ignition is engaged.

4BD1, 6BD1, 6SD1, 6RB1
4D31, 6D15, 6D16
4D95, S6D95, S6D108
4HK1, 6HK1, J08E