940 L4-2.3L SOHC VIN 88 B230F (1992)
The magnitude of the force exerted on a current carrying conductor in a magnetic field is proportional to the strength of the magnetic field and the
current. The force reaches a maximum when the magnetic field and the current are at right angles to each other. The magnetic flux in the field coils is
shown in the illustration.
Output and torque curves
The starter motor produces its highest torque at low revs, with maximum current flowing. It should never be kept engaged for more than 30 seconds
since longer periods may cause overheating and damage.
Solenoid
The solenoid is in principle a strong relay which with the help of a relatively small current can switch on or off larger currents and at the same time-slide
the drive (pinion) in to mesh with the flywheel gear.
Free running clutch
When the starter motor turns, the spring loaded rollers lock the drive (pinion). The car's engine cannot drive the starter motor because the drive (pinion)
