Device and technical description 2.7L (Discovery 3)
Starter power is 2.0 kW. The starter has the third level of tightness according to the Denso standard. The P76S type starter is made according to the traditional scheme with a coaxial arrangement of the motor shaft and the drive gear and the top location of the traction relay. The design of the starter includes an electric motor with sequential excitation and constant meshing of the rotor, a freewheel (overrunning clutch) and built-in traction relay solenoid. The starter motor is ventilated by a labyrinth breather that provides sealing and fluid removal.
Power is supplied to the starter traction relay at the command of the engine control unit (ECM), when the ignition key is turned to the engine start position. Upon receiving a request to start the engine, the ECM checks the ignition key code authority and only then gives permission to crank the crankshaft. Power is supplied to the starter via the power bus directly from the positive terminal of the battery. The other end of the cable is connected to the copper threaded stud of the traction relay and secured with a nut.
The starter motor is located on the right rear of the cylinder block and protrudes into a hole in the flywheel housing flange to engage with the ring gear. The starter is attached with two bolts to the cylinder block and four bolts and a bracket to the ladder structure. The bracket is the most important element of the starter mounting, so when removing and installing the starter, you must not forget about the bracket.
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