Range Rover Starter Motor Description and Operation
CHARGING AND STARTING
DESCRIPTION AND OPERATION
86-1-5
V8 Alternator
The alternator is located at the front LH side of the engine. The alternator has an output of 90/150 Amps and is
manufactured by Bosch. A polyvee belt drives the alternator pulley, which in turn is driven from the engine crankshaft
pulley.
Starter Motor
The starter motors used on the Td6 and V8 engine are different in their construction, but their principles of operation
are similar.
Both starter motors are of conventional design with the motor in line with the drive pinion and the solenoid mounted
above. Each starter motor is of the pre-engaged type and comprises of a series wound motor, an overunning clutch
and an integral solenoid. The starter solenoid is energised by a signal from the immobilisation ECU when the ignition
switch is moved to the crank position. When engine cranking is requested, the immobilisation ECU checks that a valid
key code has been received before granting the crank request. The power for starter operation is supplied on a
substantial single cable connected direct from the battery positive terminal. The cable is connected to the solenoid via
a copper threaded stud and secured with a nut.