2010 JAGUAR XFR Pump

1 Power steering fluid inlet port 2 Flow control valve 3 Power steering fluid outlet port 4 Variable Orifice 5 Pump rotor 6 High pressure 7 Adapter ring 8 Cam Ring 9 Low pressure The pump consists of a shaft containing a number of slots into which vanes are inserted and these vanes run within a cam ring
in the pump body. The centerline of the shaft is not concentric with that of the bore of the body and this creates the expanding
and contracting cavities that form the pumping action.

The vanes rotate within the cam ring and are driven by the shaft. As the vanes rotate, the cam ring causes the space between
the vanes to increase. This causes a depression between the vanes and fluid is drawn from the reservoir via the suction hose
into the space between the vanes. As the shaft rotates, the inlet port is closed to the vanes which have drawn in fluid,
trapping the fluid between the vanes. The cam ring causes the space between the vanes to reduce and consequentially
compresses and pressurizes the hydraulic fluid trapped between them. Further rotation of the shaft moves the vanes to the
outlet port. As the vanes pass the port plate the pressurized fluid passes from the pump outlet port into the pressure hose to
the steering gear.

The cam ring in the pump body can move within the valve body. By moving the cam ring it is possible to vary the eccentricity of
the shaft and the vanes in relation to the cam ring. As the eccentricity is decreased, the volume of hydraulic fluid trapped
between the vanes decreases, maintaining the flow in response to pump speed. This reduces the load required to turn the
pump and therefore improves engine output and economy. This allows the flow rate to be matched to the system demands and
increased flow rate is only required when the steering wheel is turned.

The pump has an internal regulating valve which controls the eccentricity of the cam ring and therefore varies the flow rate
according to demand. The regulating relief valve limits the maximum pressure supplied to the steering gear to 110 bar (1595
lbf in2) ± 4 bar (58 lbf in2) and also limits the maximum flow to 8.5 l/min (1.86 gal/min) ± 0.5 l/min (0.1 gal/min) regardless
of engine speed.

1 Bolt and washer (2 off) 2 Rubber mounting (2 off) 3 Cap 4 Reservoir body 5 Return connection 6 Suction hose connection 7 Max/Min level 8 Lanyard The reservoir is located in the engine compartment, on the LH suspension housing. The reservoir is attached to a bracket via 2 rubber mounts, and the bracket is attached to the suspension housing.

The reservoir is a plastic moulding with an integral 80 micron, non-serviceable filter. Two moulded ports at the base of the
reservoir provide for attachment of the fluid supply hose to the power steering pump and fluid return hose from the fluid cooler.
The reservoir is fitted with a removable cap which is screwed 1/4 turn to lock into the reservoir body.
The reservoir has upper and minimum marks moulded on its outside of the body. Fluid Reservoir

Published: 11-May-2011
Power Steering - Power Steering Pump V8 5.0L Petrol/V8 S/C 5.0L Petrol
Removal and Installation

Removal

NOTES:


Removal steps in this procedure may contain installation details.


Some variation in the illustrations may occur, but the essential information is always correct.

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


2. WARNING: Do not work on or under a vehicle supported only by a jack.
Always support the vehicle on safety stands.
Raise and support the vehicle.

3. Refer to: Power Steering System Bleeding (211-00 Steering System - General Information, General Procedures).

4. Refer to: Air Cleaner Outlet Pipe LH (303-12D Intake Air Distribution and Filtering - V8 S/C 5.0L Petrol, Removal and Installation).

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

6. Torque: 25 Nm 7. NOTE: Do not loosen the bolts more than 2 turns.
Torque: 25 Nm

Published: 05-Feb-2014
Power Steering - Power Steering Pump to Steering Gear Pressure Line V8 5.0L Petrol/V8 S/C 5.0L Petrol
Removal and Installation

Removal


NOTE: Removal steps in this procedure may contain installation details.


1. WARNING: Make sure to support the vehicle with axle stands.

Raise and support the vehicle.

2. Refer to: Power Steering System Filling - V8 5.0L Petrol/V8 S/C 5.0L Petrol (211-00 Steering System - General Information, General Procedures).

3. Torque: 11 Nm 4. NOTE: RHD shown, LHD is similar.













5. Lower the vehicle.

Component Tests
Engine Oil Leaks


NOTE: Before installing new gaskets or oil seals, make sure that the fault is clearly established.

If the oil leak cannot be identified clearly by a visual inspection, carry out an Ultraviolet test:

Fluorescent Oil Additive Method

1. Clean the engine with a suitable cleaning fluid (brake cleaner).

2. Drain the engine oil and refill with recommended oil, premixed with Diesel Engine Oil Dye or equivalent. Use a minimum
14.8 ml (0.5 ounce) to a maximum 29.6 ml (1 ounce) of fluorescent additive to all engines. If oil is not premixed,
fluorescent additive must first be added to the crankcase.

3. Run engine for 15 minutes. Stop the engine and inspect all seal and gasket areas for leaks using a 12 Volt Master UV
Diagnostic Inspection Kit or equivalent. A clear bright yellow or orange area will identify leak. For extremely small
leaks, several hours may be required for the leak to appear.

4. As necessary, pressurize the main oil gallery system to locate leaks due to incorrectly sealed, loose or cocked plugs. If
the flywheel bolts leak oil, look for sealer on the threads.
5. Repair all leaks as necessary.

Compression Test General Remarks
NOTES:

Removing fuses and disconnecting electrical components may cause the Engine Control Module (ECM) to log Diagnostic
Trouble Codes (DTCs). After the measurements have been carried out, DTCs should be cleared from memory by connecting to
the Manufacturer Approved Diagnostic System.


Only check the compression pressure with the valves set to the prescribed clearance (if this can be adjusted).
The compression pressure should be checked with the engine at normal operating temperature.

Check the Compression Pressure


WARNING: Move gear selector lever to 'P' position. Failure to follow this instruction may result in personal injury.
1. Remove the fuel pump relay.

2. Start the engine - the engine will start, run for a few seconds then stall.

3. Remove the spark plugs.
4. Install the compression tester.

5. Install an auxiliary starter switch in the starting circuit. With the ignition switch OFF, using the auxiliary starter switch,
crank the engine a minimum of five compression strokes and record the highest reading. Note the approximate number
of compression strokes required to obtain the highest reading.
6. Repeat the test on each cylinder, cranking the engine approximately the same number of compression strokes.
7. Install the removed components in reverse order, observing the specified tightening torques.

8. Clear all DTCs from the ECM.
Interpretation of the Results


NOTE: Due to the possibility of loose carbon that has become trapped between the valve face and seat effecting the
pressure readings, when carrying out a compression test and cylinders are found to have low pressures, install the spark plugs,
road test the vehicle and re-test the suspect cylinders. If the correct pressures are restored, no further action is required.

The indicated compression pressures are considered within specification if the lowest reading cylinder is within 75% of the
highest reading.

If the cylinder pressures are found to be low, carry out a leakdown test to determine the location of the fault (if any leakback
can be heard through the engine breather system suspect the piston rings, if any leakback can be heard through the inlet
system suspect the inlet valve or seat, if any leakback can be heard through the exhaust manifold suspect the exhaust valve
or seat. If the measurements for two cylinders next to each other are both too low then it is very likely that the cylinder head
gasket between them is burnt through. This can also be recognized by traces of engine oil in the coolant and/or coolant in the

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 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 Oil pump outlet tube 2 Anti-drain valve 3 Oil cooler 4 Oil filter 5 Piston cooling jets 6 Timing chain lubrication jets 7 Oil evacuation tube 8 Oil pump 9 Oil temperature and level sensor 10 Oil pick-up The oil pump is attached to the underside of the windage tray. The input shaft of the oil pump is driven from the front of the
crankshaft, by the auxiliary chain, at 0.87 engine speed.

The oil pump draws oil from the sump pan through a centrally mounted pick-up pipe. The oil is pressurized and pumped
through an output tube to the cylinder block. After passing through an anti-drain valve and a plate type oil cooler, the oil is
filtered by a replaceable cartridge installed on the front of the RH cylinder head. LUBRICATION SYSTEM