2010 JAGUAR XFR Exhaust

Item Specification Camshaft journal maximum run out limit (mm) Camshaft journals to end journals 0.03 Camshaft journals to adjacent journals 0.015 Camshaft journal maximum out of round (mm) - all journals 0.005 Torque Specification

NOTE: A = Refer to procedure for correct torque sequence.

Description Nm lb-ft lb-in Engine cover mounting bolts 10 7 - Accessory drive belt tensioner retaining bolt 40 30 - Supercharger belt idler/tensioner bracket retaining bolts 25 18 - Secondary drive belt idler retaining bolts 40 30 - Power steering pump pulley retaining bolts 25 18 - Power steering pump retaining bolts 25 18 - Power steering pump bracket to engine retaining bolts 25 18 - Generator retaining bolts 48 35 - Starter motor retaining bolts 48 35 - Air conditioning compressor retaining bolts 25 18 - Engine mounting to engine mounting bracket retaining nuts 48 35 - Engine mounting to subframe retaining nuts 63 46 - Engine mounting bracket to engine retaining bolts 48 35 - Crankshaft damper pulley retaining LH threaded bolt 200 + 270° 148 + 180° - Flexplate retaining bolts 45 + 90° 33 + 90° - Exhaust manifold heat shield retaining bolts A - - Exhaust manifold retaining bolts A - - Engine wiring harness bracket retaining bolts 10 7 - Coolant outlet pipe 10 7 - Intercooler retaining bolts 25 18 - Intake manifold retaining bolts 25 18 - Oil Cooler retaining bolts 13 10 - Knock sensor (KS) retaining bolt 20 14 - Ignition coil retaining bolts 8 - 71 Spark plugs 20 15 - Fuel rail retaining bolts A - - High pressure fuel pipe retaining bolts A - - High pressure fuel pump retaining bolts 12 9 - Oil filter housing assembly retaining bolts 12 9 - Oil filter cap 28 21 - Lifting eye bolts 25 + 90° 18 + 90° - Manifold absolute pressure and temperature (MAPT) sensor sensor retaining bolts 5 - 44 Coolant pump retaining bolts 12 9 - Variable valve timing (VVT) oil control solenoid retaining bolts 10 7 - Camshaft position (CMP) sensor retaining bolts 10 7 - Camshaft cover retaining bolts 13 10 - Front upper timing cover retaining bolts 12 9 - Front lower timing cover retaining bolts A - - Engine rear cover retaining bolts A - - VVT to camshaft retaining bolts 32 24 - Camshaft bearing caps retaining bolts 11 8 - Primary timing chain fixed guide retaining bolts 12 9 - Primary timing chain tensioner retaining bolts 12 9 - Primary timing chain tensioner guide blade retaining bolts 25 18 - Auxiliary chain tensioner guide retaining bolts 21 15 - Auxiliary chain fixed guide retaining bolt 12 9 - Oil pump sprocket retaining bolt 21 15 - Cylinder head retaining bolts A - - Engine oil level (EOL) sensor retaining bolt 12 9 - Oil pan to oil sump body retaining bolts 12 9 - Oil sump body to engine retaining bolts 25 18 - Oil pan drain plug 23 17 - Oil transfer tube to Oil pan body retaining bolts 11 8 - Oil pump to engine block retaining bolts 25 18 - Pick-up pipe to oil pump retaining bolts 12 9 - Windage tray retaining bolts 25 18 - Piston cooling jet retaining bolts 12 9 - Engine block coolant draining plug 50 37 - Connecting Rod bolts Stage 1 10 7 - Stage 2 50 37 -

1 Cylinder head 2 Gasket 3 Heat shield 4 Gasket 5 Exhaust manifold 6 Bolt (8 off) 7 Heat shield 8 Bolt (4 off) 9 Spacer (8 off) The high SiMo (silicon molybdenum) cast iron exhaust manifolds are unique for each cylinder bank. Each exhaust manifold
installation includes two metal gaskets and two heat shields. Spacers on the securing bolts allow the manifolds to expand and
contract with changes of temperature while maintaining the clamping loads. NOTE: LH (B bank) installation shown, RH (A bank) installation similar.

1 Inlet camshafts 2 Exhaust camshaft 3 Inverted tooth timing chain 4 Nylon chain guide 5 Auxiliary chain tensioner 6 Auxiliary drive chain 7 Oil pump drive 8 Auxiliary drive camshaft 9 Timing chain tensioner 10 Tensioner lever 11 VCT unit 12 VCT solenoids The lightweight valve train provides good economy and noise levels and is chain driven from the crankshaft.

Double overhead camshafts on each cylinder head operate the valves. For each cylinder head, an inverted tooth timing chain
transfers drive from the crankshaft to the VCT (variable camshaft timing) unit on the front of each camshaft. Graded tappets
enable setting of inlet and exhaust valve clearances.

Each timing chain has a hydraulic tensioner operated by engine oil pressure. The chain tensioners incorporate a ratchet
mechanism, which maintains tension while the engine is stopped to eliminate start-up noise. The chains are lubricated with
engine oil from jets located at the front of the engine block. Nylon chain guides control chain motion on the drive side. VALVE TRAIN

1 VCT units 2 Intake camshaft VCT solenoid 3 Camshaft position sensors 4 Exhaust camshaft VCT solenoid The VCT system varies the timing of the intake and exhaust camshafts to deliver optimum engine power, efficiency and emissions. The timing of the intake camshafts has a range of 62 degrees of crankshaft angle. The timing of the exhaust
camshafts has a range of 50 degrees of crankshaft angle.
In the base timing position:

The intake camshafts are fully retarded.
The exhaust camshafts are fully advanced.

VCT Operating Ranges
Camshaft Valve Opens Valve Closes Intake 29 degrees BTDC (before top dead center) to 33 degrees ATDC (after top dead center) 207 to 269 degrees ATDC Exhaust 244 to 194 degrees BTDC 6 to 56 degrees ATDC The system consists of a VCT unit and a VCT solenoid for each camshaft. The ECM controls the system using PWM (pulse width modulation) signals to the VCT solenoids.
The torsional energy generated by the valve springs and the inertia of the valve train components are used to operate the
system. Variable Camshaft Timing

Variable Camshaft Timing Operation

When the engine is running, the compression and expansion of the valve springs causes momentary increases and decreases
in the torque acting on the camshafts. These momentary changes of torque are sensed in the VCT units and used to change the camshaft timing.


ItC
em Description A Camshaft torque B Camshaft rotation (degrees) Valve opening D Peak lift E Valve closing 1 1000 rev/min 2 4000 rev/min 3 7000 rev/min 4 Inertia effects from valve train rotating components 5 Force caused by valve spring 6 Bias torque from friction
NOTE: Intake camshaft VCT unit shown. For exhaust camshaft VCT unit, read advance for retard and retard for advance.

Engine - V8 S/C 5.0L Petrol - Cylinder Head LH
Removal and Installation

Removal


NOTE: Removal steps in this procedure may contain installation details. Published: 18-May-2012

1. Refer to: Battery Disconnect and Connect (414-01 Battery, Mounting and Cables, General Procedures).


2. WARNING: Make sure to support the vehicle with axle stands.
Raise and support the vehicle.

3. Refer to: Camshaft LH (303-01D Engine - V8 S/C 5.0L Petrol, Removal and Installation).

4. Refer to: Exhaust Manifold LH (303-01C Engine - V8 5.0L Petrol, Removal and Installation).

5.
6.

Torque: 12 Nm



















22.
Refer to: Exhaust Manifold LH (303-01C Engine - V8 5.0L Petrol, Removal and Installation).

23. Refer to: Camshaft LH (303-01D Engine - V8 S/C 5.0L Petrol, Removal and Installation).

24. Refer to: Battery Disconnect and Connect (414-01 Battery, Mounting and Cables, General Procedures). www.JagDocs.com

Engine - V8 S/C 5.0L Petrol - Cylinder Head RH
Removal and Installation

Removal


NOTE: Removal steps in this procedure may contain installation details. Published: 11-May-2011

1. Refer to: Battery Disconnect and Connect (414-01 Battery, Mounting and Cables, General Procedures).

2. Raise and support the vehicle.

3. Refer to: Supercharger (303-12D Intake Air Distribution and Filtering - V8 S/C 5.0L Petrol, Removal and Installation).

4. Refer to: Camshaft RH (303-01D Engine - V8 S/C 5.0L Petrol, Removal and Installation).

5. Refer to: Exhaust Manifold (303-01A, Removal and Installation).

6.