2011 Jaguar XJ (X351) Service & Repair Manual

2009-2015 JAGUAR XJ REPAIR MANUAL

ENGINE Accessory Drive (V8 5.0L Petrol) ACCESSORY DRIVE (V8 5.0L PETROL) SPECIFICATIONS DESCRIPTION AND OPERATION ACCESSORY DRIVE COMPONENT LOCATION Description Nm lb-ft lb-in Accessory drive belt tensioner retaining bolt 47 35 - Accessory drive belt center idler pulley retaining bolt - vehicles without supercharger 25 19 - Accessory drive belt idler pulley retaining bolt to tensioner bracket - vehicles with supercharger 40 30 - Supercharger belt tensioner bracket retaining bolt 25 19 - Supercharger belt tensioner retaining bolt 40 30 - Supercharger belt idler pulley retaining bolt to tensioner bracket 40 30 - 2010 Jaguar XJ ENGINE Accessory Drive (V8 5.0L Petrol) CARMANUALSUSA Wednesday, June 24, 2015 11:23:33 PM Page 1 © 2011 Mitchell Repair Information Company, LLC.

Item Number Description 1 Coolant pump 2 Power steering pump 3 Belt tensioner 4 air conditioning (A/C) compressor 2010 Jaguar XJ ENGINE Accessory Drive (V8 5.0L Petrol) CARMANUALSUSA Wednesday, June 24, 2015 11:23:31 PM Page 2 © 2011 Mitchell Repair Information Company, LLC.

OVERVIEW The accessory drive is a belt system powered by a pulley attached to the front of the crankshaft. The crankshaft pulley, which incorporates a torsional vibration damper, drives a single (primary) drive belt. An automatic belt tensioner maintains the drive belt at the correct tension. Together with idler pulleys, the belt tensioner also guides the drive belt clear of obstructions and sets the correct 'wrap-around' of the accessory component drive pulleys to ensure a slip-free drive. DRIVE BELT The drive belt is a six-ribbed poly-V belt that drives the:  Coolant pump  Power steering pump  air conditioning (A/C) compressor  Generator. BELT TENSIONER The belt tensioner consists of an idler pulley on the end of a spring loaded pivot arm. The pivot arm can be turned manually for removal and installation of the drive belt. The belt tensioner is calibrated to automatically maintain the correct tension in the drive belt. DIAGNOSTIC PROCEDURES ACCESSORY DRIVE For a detailed description of the accessory drive belt system and operation, refer to the relevant Description and Operation section in the workshop manual. INSPECTION AND VERIFICATION 5 Primary drive belt 6 Crankshaft pulley/torsional vibration damper 7 Idler pulley 8 Generator 9 Idler pulley CAUTION: Diagnosis by substitution from a donor vehicle is NOT acceptable. Substitution of control modules does not guarantee confirmation of a fault and may also cause additional faults in the vehicle being checked and/or the donor vehicle. NOTE: Check and rectify basic faults before beginning diagnostic routines involving 2010 Jaguar XJ ENGINE Accessory Drive (V8 5.0L Petrol) CARMANUALSUSA Wednesday, June 24, 2015 11:23:31 PM Page 3 © 2011 Mitchell Repair Information Company, LLC.

1. Verify the customer concern. 2. Visually inspect for obvious signs of mechanical damage. Visual Inspection 3. If an obvious cause for an observed or reported condition is found, correct the cause (if possible) before proceeding to the symptom chart. 4. If the cause is not visually evident, verify the symptom and refer to the Symptom Chart, alternatively check for Diagnostic Trouble Codes (DTCs) and refer to the DTC Index. SYMPTOM CHART (ACCESSORY DRIVE BELT) DTC INDEX pinpoint tests. Mechanical  Drive belt condition (cracking/damage/contamination)  Idler assembly  Generator  Engine cooling fan  Tensioner assembly  Engine coolant pump  Power steering pump  Air Conditioning (A/C) compressor  Torsional vibration damper  Tensioner assembly  Accessory drive belt  Security/Correct installation of the fuel injection pump cover Symptom Possible Cause Action Noise  Belt 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 tension  Belt condition  Tensioner fault Check the belt condition (see visual inspection). Check the tensioner function. Rectify as necessary. 2010 Jaguar XJ ENGINE Accessory Drive (V8 5.0L Petrol) CARMANUALSUSA Wednesday, June 24, 2015 11:23:31 PM Page 4 © 2011 Mitchell Repair Information Company, LLC.

For a list of Diagnostic Trouble Codes (DTCs) that could be logged on this vehicle, please refer to Diagnostic Trouble Code (DTC) Index - DTC: Engine Control Module 5.0L (PCM) information. REMOVAL AND INSTALLATION ACCESSORY DRIVE BELT REMOVAL 1. Refer to Air Cleaner Outlet Pipe T - Connector - Vehicles Without: Supercharger information. 2. Refer to Air Cleaner Outlet Pipe LH information. 3. See figure. NOTE: Removal steps in this procedure may contain installation details. CAUTION: Clean and inspect the accessory drive belt pulleys for damage. NOTE: Engine shown removed for clarity. NOTE: Note the fitted position. 2010 Jaguar XJ ENGINE Accessory Drive (V8 5.0L Petrol) CARMANUALSUSA Wednesday, June 24, 2015 11:23:31 PM Page 5 © 2011 Mitchell Repair Information Company, LLC.

INSTALLATION 1. To install, reverse the removal procedure. ACCESSORY DRIVE BELT IDLER PULLEY REMOVAL 1. See Accessory Drive Belt . 2. Refer to Air Cleaner Outlet Pipe RH information. CAUTION: Make sure that the accessory drive belt is correctly located on each pulley. NOTE: Removal steps in this procedure may contain installation details. NOTE: Engine shown removed for clarity. 2010 Jaguar XJ ENGINE Accessory Drive (V8 5.0L Petrol) CARMANUALSUSA Wednesday, June 24, 2015 11:23:31 PM Page 6 © 2011 Mitchell Repair Information Company, LLC.

3. Torque: 25 Nm. INSTALLATION 1. To install, reverse the removal procedure. ACCESSORY DRIVE BELT TENSIONER REMOVAL 1. Refer to Air Cleaner Outlet Pipe T - Connector - Vehicles Without: Supercharger information. 2. Refer to Air Cleaner Outlet Pipe LH information. NOTE: Removal steps in this procedure may contain installation details. NOTE: Engine shown removed for clarity. 2010 Jaguar XJ ENGINE Accessory Drive (V8 5.0L Petrol) CARMANUALSUSA Wednesday, June 24, 2015 11:23:31 PM Page 7 © 2011 Mitchell Repair Information Company, LLC.

3. See figure 4. Torque: 47 Nm. NOTE: Note the fitted position of the accessory drive belt. 2010 Jaguar XJ ENGINE Accessory Drive (V8 5.0L Petrol) CARMANUALSUSA Wednesday, June 24, 2015 11:23:31 PM Page 8 © 2011 Mitchell Repair Information Company, LLC.

INSTALLATION 1. To install, reverse the removal procedure. CAUTION: Make sure that the accessory drive belt is correctly located on each pulley. NOTE: Install the bolt finger tight before final tightening. 2010 Jaguar XJ ENGINE Accessory Drive (V8 5.0L Petrol) CARMANUALSUSA Wednesday, June 24, 2015 11:23:31 PM Page 9 © 2011 Mitchell Repair Information Company, LLC.

2011 Jaguar XJ (X351) Service & Repair Manual

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