Starter — General Description (Opel Omega A)

The starter motor is made by Bosch and is mounted on the rear of the crankcase. It is of the pre-engagement type, i.e. the pinion gear engages through a hole with the flywheel ring gear before power is supplied.

When the starter switch is turned on, the electric current from the battery is sent to the traction relay, which is mounted on the starter housing. The plunger in the traction relay is pulled inward and turns the central lever, pushing the pinion into the hole to engage with the flywheel ring gear. When the solenoid plunger reaches the end, it closes the internal contact and all the electric current is sent to the traction relay coils. The anchor turns the crankshaft, thus starting the engine.

The drive gear is equipped with a special freewheel clutch, which disconnects the starter as soon as the car starts moving on its own.

When the starter switch is turned off, the solenoid relay is de-energized and the spring moves the plunger back to its original position. It rotates the lever to remove the pinion gear from engagement with the flywheel ring gear.



(Article posted on Internet portal: OPELBOOK.ru)