Starters Land Rover Range Rover III

DESCRIPTION

The starter motor is of conventional design with the motor in line with the drive pinion and the solenoid mounted above. (Scheme 1) Each starter motor is of the pre-engaged type and comprises a series wound motor, an overrunning clutch and an integral solenoid. The starter solenoid is energized by a signal from the immobilization ECU when the ignition switch is moved to the crank position. When engine cranking is requested, the immobilization 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. The starter motor is located on the rear right hand side of the engine block. The motor is secured to the block and protrudes through an opening to drive the flywheel via a ring gear.

Scheme 1

STARTING

The starting system on the vehicle comprises a 12 V starter motor which drives the engine to start the combustion process. The starter converts electrical energy into mechanical power. The vehicle electrical system must be capable of supplying sufficient power to enable the engine to be cranked.

Range Rover features 'lazy starting'. This entails the driver not having to hold the ignition key in the 'crank position'. Starting of the engine is controlled automatically by the Engine Control Module (ECM), which provides power to the starter motor until engine speed is greater than 400 rpm.

CHARGING

The charging system comprises a battery and an alternator. The battery must be of a sufficient capacity to operate the starter motor and operate the various electrical systems in the vehicle. The alternator charges the battery when the engine is running and increases its output as demand on the battery increases.

The alternator is located at the front LH side of the engine, below the steering pump. The alternator has an output of 90/150 Amps and is manufactured by Valeo. A polyvee belt drives the alternator pulley, which in turn is driven from the engine crankshaft pulley.

The instrument pack incorporates a charge warning lamp which illuminates when there is no output or a low output from the alternator.

The starting system on the vehicle comprises a 12 V starter motor which drives the engine to start the combustion process. The starter converts electrical energy into mechanical power. The vehicle electrical system must be capable of supplying sufficient power to enable the engine to be cranked.

Range Rover features 'lazy starting'. This entails the driver not having to hold the ignition key in the 'crank position'. Starting of the engine is controlled automatically by the Engine Control Module (ECM), which provides power to the starter motor until engine speed is greater than 920 rpm (engine cold) or 680 rpm (engine warm).

The charging system comprises a battery and an alternator. The battery must be of a sufficient capacity to operate the starter motor and operate the various electrical systems in the vehicle. The alternator charges the battery when the engine is running and increases its output as demand on the battery increases.

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.

The instrument pack incorporates a charge warning lamp which illuminates when there is no output or a low output from the alternator.

BATTERY DISCONNECT & RECONNECT

It is imperative that the key is removed from the ignition before disconnecting the battery. A time of 2 minutes must also elapse before disconnection. Failure to do so could result in

1. Navigation computer hardware damage.
2. Incorrect fuel gauge reading.

Before disconnecting the battery, disable the alarm system and switch off all electrical equipment. If the radio is to be serviced, ensure the security code has been deactivated.

Open hood. Disconnect ground lead. Reconnect ground lead.

BENCH TESTING

Note. Bench testing information is not available from manufacturer.

Removal

1. Release hood support stays, raise and secure hood in upright position.
2. Disconnect battery ground lead. See «BATTERY DISCONNECT & RECONNECT»(/land-rover/range-rover/iii-2002-2005/remont/starter/#starters__battery-disconnect-reconnect).
3. Remove hood sealing rubber from air intake molding. (Scheme 2)
4. Release cover from positive cable.
5. Remove nut and disconnect positive cable from stud. (Scheme 3)
6. Remove 2 nuts securing air intake plenum assembly and remove assembly. (Scheme 4)
7. Remove 3 screws securing air intake cover and remove cover.
8. Remove air filter.

Scheme 2

Scheme 3

Scheme 4

Installation

1. Install air filter.
2. Install plenum cover and secure with screws.
3. Install plenum assembly and tighten nuts to specification. See «TORQUE SPECIFICATIONS»(/land-rover/range-rover/iii-2002-2005/remont/starter/#starters__torque-specifications) .
4. Install positive cable to stud and tighten nut to specification. See «TORQUE SPECIFICATIONS»(/land-rover/range-rover/iii-2002-2005/remont/starter/#starters__torque-specifications) .
5. Install cover.
6. Install hood sealing rubber to air intake molding.
7. Connect battery ground lead.
8. Reconnect support stays and close hood.

1. Before disconnecting the battery, ensure all text and cautions in the battery disconnection section are observed. See «BATTERY DISCONNECT & RECONNECT»(/land-rover/range-rover/iii-2002-2005/remont/starter/#starters__battery-disconnect-reconnect). Disconnect battery ground lead.
2. Raise vehicle and support.
3. Remove air intake plenum. See «AIR INTAKE-PLENUM»(/land-rover/range-rover/iii-2002-2005/remont/starter/#starters).
4. Release terminal cover, remove nut and disconnect 2 cables from terminal post.
5. Remove right exhaust manifold. See «RIGHT EXHAUST MANIFOLD»(/land-rover/range-rover/iii-2002-2005/remont/starter/#starters).
6. Remove 2 bolts and heat shield. (Scheme 6)
7. Remove 2 bolts and release starter motor.
8. Reposition starter motor to allow access to electrical connectors.
9. Remove nut and disconnect battery lead from starter motor. (Scheme 7)
10. Remove 2 nuts and disconnect remaining leads from starter motor. (Scheme 8)
11. Disconnect starter motor breather pipe.
12. Remove starter motor.

Scheme 5

Scheme 6

Scheme 7

Scheme 8

1. Clean starter motor and mating face. Clean dowel and dowel hole.
2. Connect starter motor breather pipe.
3. Position starter motor, connect starter motor leads and tighten nuts securing starter motor leads to specification. See «TORQUE SPECIFICATIONS»(/land-rover/range-rover/iii-2002-2005/remont/starter/#starters__torque-specifications) .
4. Connect battery lead to starter motor and tighten nut securing battery lead to starter motor to specification. See «TORQUE SPECIFICATIONS»(/land-rover/range-rover/iii-2002-2005/remont/starter/#starters__torque-specifications) .
5. Install starter motor, install 2 bolts and tighten bolts securing starter motor to specification. See «TORQUE SPECIFICATIONS»(/land-rover/range-rover/iii-2002-2005/remont/starter/#starters__torque-specifications) .
6. Install heat shield, install 2 bolts and tighten bolts securing heat shield to starter motor to specification. See «TORQUE SPECIFICATIONS»(/land-rover/range-rover/iii-2002-2005/remont/starter/#starters__torque-specifications) .
7. Install right exhaust manifold.
8. Install air intake plenum.
9. Connect battery ground lead.

1. Raise vehicle and support.
2. Disconnect battery ground lead. See «BATTERY DISCONNECT & RECONNECT»(/land-rover/range-rover/iii-2002-2005/remont/starter/#starters__battery-disconnect-reconnect).
3. Release clips securing left and right pre-catalyst HO2S harness leads. (Scheme 9)
4. Release clips securing left and right post catalyst HO2S harness leads. (Scheme 10)
5. Support weight of exhaust with jack.
6. Remove 4 nuts securing front exhaust rubber mountings to body. (Scheme 11)
7. Remove 4 nuts securing front pipe flanges to exhaust manifolds and discard nuts. (Scheme 12)
8. Lower exhaust on jack.
9. Remove 8 nuts securing exhaust manifold, remove exhaust manifold and discard nuts and 2 gaskets. (Scheme 13)

Scheme 9

Scheme 10

Scheme 11

Scheme 12

Scheme 13

1. Clean exhaust front pipe and manifold mating faces and install NEW gaskets.
2. Apply copper grease to exhaust manifold studs, install exhaust manifold, install 8 NEW nuts securing exhaust manifold and tighten to specifications. See «TORQUE SPECIFICATIONS»(/land-rover/range-rover/iii-2002-2005/remont/starter/#starters__torque-specifications) .
3. Raise exhaust with jack, locate exhaust flange to exhaust manifold studs.
4. Install 4 NEW nuts securing exhaust front pipes to exhaust manifolds and tighten to specifications. See «TORQUE SPECIFICATIONS»(/land-rover/range-rover/iii-2002-2005/remont/starter/#starters__torque-specifications) .
5. Install 4 NEW nuts securing front exhaust rubber mountings to body and tighten to specifications. See «TORQUE SPECIFICATIONS»(/land-rover/range-rover/iii-2002-2005/remont/starter/#starters__torque-specifications) .
6. Lower support jack.
7. Secure right and left HO2S harnesses to clips on center heat shields and bell housing.
8. Connect battery ground lead.

OVERHAUL

Note. Overhaul procedures are not available from manufacturer.

STARTER SPECIFICATIONS

STARTER SPECIFICATIONS

TORQUE SPECIFICATIONS

TORQUE SPECIFICATIONS

WIRING DIAGRAMS

For appropriate wiring diagram

1. For 2003 models, see «STARTING/CHARGING»(ref-159346-S04768738812003120100000) in SYSTEM WIRING DIAGRAMS - RANGE ROVER article in ELECTRICAL.
2. For 2004 models, see «STARTING/CHARGING»(ref-166687-S35290247702004092700000) in SYSTEM WIRING DIAGRAMS - RANGE ROVER article in ELECTRICAL.

See also:
• BATTERY DISCONNECT & RECONNECT
• TORQUE SPECIFICATIONS
• AIR INTAKE-PLENUM