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Accessory Drive - v8 4.4l Petrol Land Rover Range Rover Sport L320

Cooling System (mechanical) 11 illustrations ~917 words

SPECIFICATIONS

DescriptionNm
Cooling fan belt tensioner pulley bolt25
Cooling fan belt tensioner bolt45
Cooling fan drive pulley bolts25
Accessory drive belt idler pulley bolt25
Viscous fan drive hub bearing/pulley bolts10
Accessory drive belt tensioner retaining bolt40

TORQUE SPECIFICATIONS

Scheme 74

Scheme 74: ACCESSORY DRIVE
Scheme 74: ACCESSORY DRIVE
ItemPart NumberDescription
APrimary accessory drive
BSecondary accessory drive
1Dynamic Response pump pulley (if fitted)
2Deflection pulley
3Coolant pump
4Primary accessory drive belt
5Primary tensioner assembly
6A/C compressor
7Power steering pump
8Crankshaft pulley
9Generator
10Engine cooling fan pulley
11Secondary accessory drive belt
12Secondary tensioner assembly

GENERAL

A single six-ribbed belt drives all the primary engine mounted accessories and a secondary double-sided single eight-ribbed belt drives the engine driven cooling fan.

Both the primary and secondary belts are crankshaft driven via the torsional vibration damper. An automatic tensioner, located on the LH accessory-mounting bracket, keeps the belt at the correct tension. A deflection pulley on the RH accessory-mounting bracket increases the wrap angle around the generator pulley.

The torsional vibration damper incorporates compressed rubber between its inner and outer diameters to absorb vibration and shock loads.

The automatic tensioner consists of a deflection pulley on the end of a spring loaded pivot arm. The pivot arm can be turned counter-clockwise (viewed from the front of the engine) for removal and installation of the belt.

OVERVIEW

There are 2 accessory drive belts on the supercharged engine and this section covers basic checks for both.

For ease of identification, the 2 belts are referred to as primary and secondary drive belts.

For additional information on the description and operation of the system, refer to the relevant service information.

INSPECTION AND VERIFICATION

  1. Verify the customer concern.
  2. Visually inspect for obvious mechanical faults. SYMPTOM CHART Mechanical Primary drive belt condition (cracking/damage/contamination) Secondary drive belt condition (cracking/damage/contamination) Belt tension Pulley alignment Coolant pump Primary tensioner assembly Air conditioning compressor Power steering pump Crankshaft pulley Generator Dynamic response pump pulley Deflection pulley Supercharger pulley Secondary tensioner assembly Cooling fan pulley
  3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step. CAUTION: If the engine is run without the accessory drive belts connected to eliminate driven components, diagnostic trouble codes, (DTCs) may be set which must be cleared before the vehicle is returned to the owner. The engine should not be run for more than 2-3 minutes with the belts disconnected. Failure to follow this instruction may result in damage to the vehicle.
  4. Use the approved diagnostic system or a scan tool to retrieve any DTCs before moving onto the symptom chart or DTC index. Make sure that all DTCs are cleared following rectification.

SYMPTOM CHART

SymptomPossible causeAction
NoiseBelt condition Belt tension Pulleys misaligned Driven components (including tensioners)Check the belt condition (see visual inspection). Check the tensioner function. Check the pulley alignment. Check the driven components for excessive resistance to rotation. Rectify as necessary.
Drive belt does not hold tensionBelt condition Tensioner faultCheck the belt condition (see visual inspection). Check the tensioner function. Rectify as necessary.

DTC INDEX

Note. Generic scan tools may not read the codes listed, or may read only 5-digit codes. Match the 5 digits from the scan tool to the first 5 digits of the 7-digit code listed to identify the fault (the last 2 digits give extra information read by the manufacturer-approved diagnostic system).

Note. For a full list of ECM DTCs, refer to DTC index .

DTCDescriptionPossible sourceAction
P050600Idle Air Control System RPM Lower Than ExpectedAir intake restriction Accessory drive overload (defective/seized component)Check the air intake system. Check the accessory drive belt and components. Refer to the relevant service information.

Scheme 75

Scheme 75: REMOVAL
Scheme 75: REMOVAL
  1. Disconnect the battery ground cable. For additional information, refer to: «SPECIFICATIONS»(/land-rover/range-rover-sport/l320-2005-2009/remont/charging-system/#battery-mounting-and-cables__specifications) .
  2. Coupling unit - viscous fan-renew For additional information, refer to: «COOLING FAN»(/land-rover/range-rover-sport/l320-2005-2009/remont/cooling-system-mechanical/#engine-cooling-v8-44l-petrol__cooling-fan) .
  3. Remove the cooling fan drive belt. Using a 1/2 inch square drive bar, rotate the drive belt tensioner clockwise.

INSTALLATION

  1. To install, reverse the removal procedure.

Scheme 76

Scheme 76: REMOVAL
Scheme 76: REMOVAL

Scheme 77

Scheme 77
Scheme 77
  1. Disconnect the battery ground cable. For additional information, refer to: «SPECIFICATIONS»(/land-rover/range-rover-sport/l320-2005-2009/remont/charging-system/#battery-mounting-and-cables__specifications) .
  2. Remove the viscous fan drive belt. For additional information, refer to: «COOLING FAN BELT»(/land-rover/range-rover-sport/l320-2005-2009/remont/cooling-system-mechanical/#accessory-drive-v8-44l-petrol) .
  3. Remove the viscous fan drive belt tensioner. Remove the bolt.
  4. Remove the drive belt pulley. Remove the bolt.
  1. To install, reverse the removal procedure. Tighten the pulley bolt to 25 Nm (18 lb.ft). Tighten the tensioner bolt to 40 Nm (30 Ib.ft).
  2. Install the viscous fan drive belt. For additional information, refer to: «COOLING FAN BELT»(/land-rover/range-rover-sport/l320-2005-2009/remont/cooling-system-mechanical/#accessory-drive-v8-44l-petrol) .

Scheme 78

Scheme 78: REMOVAL
Scheme 78: REMOVAL

Scheme 79

Scheme 79
Scheme 79

Scheme 80

Scheme 80
Scheme 80
  1. Disconnect the battery ground cable. For additional information, refer to: «SPECIFICATIONS»(/land-rover/range-rover-sport/l320-2005-2009/remont/charging-system/#battery-mounting-and-cables__specifications) .
  2. Remove the viscous fan drive belt. For additional information, refer to: «COOLING FAN BELT»(/land-rover/range-rover-sport/l320-2005-2009/remont/cooling-system-mechanical/#accessory-drive-v8-44l-petrol) .
  3. Remove the cooling fan drive pulley. Remove the 3 bolts.
  4. Remove the cooling fan drive hub bearing. Remove the 5 bolts.
  5. Remove the cooling fan belt tensioner. Remove the bolt.
  6. Release the accessory drive belt. Rotate the accessory drive belt tensioner counterclockwise.
  7. Remove the accessory drive belt.

Scheme 81

Scheme 81: INSTALLATION
Scheme 81: INSTALLATION
  1. Install the accessory drive belt.
  2. Install the cooling fan belt tensioner. Tighten the M10 bolt to 45 Nm (33 lb.ft).
  3. Install the cooling fan drive hub bearing. Tighten the bolts to 10 Nm (7 lb.ft).
  4. Install the cooling fan drive pulley. Tighten the bolts evenly to 25 Nm (18 lb.ft).
  5. Install the viscous fan drive belt. For additional information, refer to: «COOLING FAN BELT»(/land-rover/range-rover-sport/l320-2005-2009/remont/cooling-system-mechanical/#accessory-drive-v8-44l-petrol) .
  6. Connect the battery ground cable. For additional information, refer to: «SPECIFICATIONS»(/land-rover/range-rover-sport/l320-2005-2009/remont/charging-system/#battery-mounting-and-cables__specifications) .

Scheme 82

Scheme 82: REMOVAL
Scheme 82: REMOVAL

Scheme 83

Scheme 83
Scheme 83
  1. Disconnect the battery ground cable. For additional information, refer to: «SPECIFICATIONS»(/land-rover/range-rover-sport/l320-2005-2009/remont/charging-system/#battery-mounting-and-cables__specifications) .
  2. Remove the viscous fan assembly. For additional information, refer to: «COOLING FAN»(/land-rover/range-rover-sport/l320-2005-2009/remont/cooling-system-mechanical/#engine-cooling-v8-44l-petrol__cooling-fan) .
  3. Release the accessory drive belt. Rotate the accessory drive belt tensioner counterclockwise.
  4. Remove the accessory drive belt tensioner. Remove the bolt.
  1. To install, reverse the removal procedure. Clean and inspect the drive pulleys for damage. Tighten the tensioner bolt to 40 Nm (30 Ib.ft).
  2. Install the viscous fan assembly. For additional information, refer to: «COOLING FAN»(/land-rover/range-rover-sport/l320-2005-2009/remont/cooling-system-mechanical/#engine-cooling-v8-44l-petrol__cooling-fan) .
  3. Connect the battery ground cable. For additional information, refer to: «SPECIFICATIONS»(/land-rover/range-rover-sport/l320-2005-2009/remont/charging-system/#battery-mounting-and-cables__specifications) .

Scheme 84

Scheme 84: REMOVAL
Scheme 84: REMOVAL
  1. Disconnect the battery ground cable. For additional information, refer to: «SPECIFICATIONS»(/land-rover/range-rover-sport/l320-2005-2009/remont/charging-system/#battery-mounting-and-cables__specifications) .
  2. Remove the accessory drive belt. For additional information, refer to: «ACCESSORY DRIVE BELT»(/land-rover/range-rover-sport/l320-2005-2009/remont/cooling-system-mechanical/#accessory-drive-v8-44l-petrol) .
  3. Remove the accessory drive belt idler pulley. Remove the bolt.
  1. Install the accessory drive belt idler pulley. Tighten the bolt to 25 Nm (18 lb.ft).
  2. Install the accessory drive belt. For additional information, refer to: «ACCESSORY DRIVE BELT»(/land-rover/range-rover-sport/l320-2005-2009/remont/cooling-system-mechanical/#accessory-drive-v8-44l-petrol) .
  3. Connect the battery ground cable.

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