2010 ASTON MARTIN V8 VANTAGE fuel pump

1-1-2 Workshop Manual Issue 5, January 2010
RH/LH Seat Switchpack Assembly - Renew...........7-13
Lumbar Pump for the Front Seat (From 08MY)
- Remove and Install.............................................7-13
Lumbar Valve for the Front Seat (From 08MY)
- Remove and Install.............................................7-14
Lumbar Bladder for the Front Seat (From 08MY)
- Remove and Install.............................................7-14
Glass, Frame and Mechanism (01.11) .................. 1-8-1 Description .............................................................8-1 Frameless doors......................................................8-1
Specifications .........................................................8-1
Maintenance ...........................................................8-1 Glass Regulator - Renew .........................................8-1
RH/LH Door Glass - Renew ....................................8-2
Door Glass - Adjust/Reset .......................................8-3
Front Windshield - Renew ......................................8-3
Rear Windshield - Renew .......................................8-4
Quarter Window Glass - Renew .............................8-6
Passenger Window Lift Switch - Renew ..................8-6
Driver Window Lift Switch - Renew........................8-7
Instrument Panel (IP) (01.12)................................ 1-9-1 Specifications ..........................................................9-1
Maintenance ...........................................................9-1 Instrument Panel - Renew ......................................9-1
Airbag Panel and Door Assembly - Renew ..............9-6
Glovebox Assembly - Renew ..................................9-6
Instrument Centre Panel Asse mbly - Renew............9-7
Knee Protector - Renew .........................................9-7
Instrument Panel As sembly - Renew .......................9-7
Cluster Bezel Panel - Renew .................................9-10
Driver Panel Assembly - Renew ............................9-10
Instrument Panel Bezel A ssembly (With Sat. Nav.)
- Renew ...............................................................9-11
Instrument Panel Bezel Assembly
(Without Sat. Nav.) - Renew .................................9-11
Rear Console Panel Assembly - Renew .................9-12
Armrest Pad Assembly - Renew ............................9-13
Console Panel Assembly - Renew .........................9-13
RH/LH Rear Console Pa nel Assembly - Renew
(Roadster Only) ....................................................9-13
Centre Console Panel - Remove and Install
(Coupe Only) .......................................................9-15
Centre Console Panel - Remove and Install
(Roadster Only) ....................................................9-19
RH/LH Lower Quarter Panel Assembly - Renew
(Roadster Only) ....................................................9-29
Handles and Lock Mechanisms (01.14) .............. 1-10-1 Description ...........................................................10-1 Vehicle Key/Remote Transmitter...........................10-1
Central Locking System ........................................10-1
Remote Transmitter ..............................................10-1
Fuel Filler Assembly ..............................................10-1
Boot Emergency Release ....... ...............................10-1
Specifications ........................................................10-2
Maintenance .........................................................10-2 Ignition Cylinder Lock - Re new.............................10-2
RH/LH Front Door Latch As sembly - Renew .........10-2
Bonnet Latch Assembly - Renew...........................10-3
Hood Release Cable Assembly - Renew (Roadster Only) .................................................... 10-3
Bonnet Secondary Latch Asse
mbly - Renew ......... 10-4
Tailgate Latch and Cable Assembly - Renew ......... 10-4
Fuel Filler Actuator Assembly - Renew
(Roadster Only) .................................................... 10-4
Fuel Filler Release Cable - Renew (Roadster Only) 10-5
Fuel Flap Release Switch - Renew ........................ 10-6
RH/LH Tonneau Latch Motor - Renew
(Roadster Only) .................................................... 10-7
RH/LH Tonneau Latch - Renew (Roadster Only) ... 10-7
RH/LH Tonneau Cover Striker Assembly
- Renew (Roadster Only) ...................................... 10-8
Tailgate Latch Assembly-Renew (Roadster Only) ... 10-8
Wipers and Washer System (01.16) ....................1-11-1 Headlamp Washing .............................................. 11-1
Specifications ........................................................ 11-2
Maintenance ......................................................... 11-2 Windscreen Wiper Motor As sembly - Renew ....... 11-2
Wiper Linkage Assembly - Renew ........................ 11-2
Windshield Wash Tube - Renew .......................... 11-2
Windscreen Reservoir and Motor Assembly
- Remove and Install ............................................ 11-3
Low Level Water Sensor - Remove and Install ...... 11-4
Headlamp Wash Motor and Pump Assembly
- Renew ............................................................... 11-5
Headlamp Wash Tube Assembly - Renew ............ 11-5
Washer Fluid Reservoir - Renew........................... 11-6
Convertible Roof and Roof Opening Subsystem
(01.17)..................................................................1-12-1 System Description .............................................. 12-1
Maintenance ......................................................... 12-2 Hood Assembly-Renew ........................................ 12-2
Canopy Cover - Renew ........................................ 12-5
Header Latch Motor - Renew ............................... 12-9
Hydraulic Main Actuator Cy linder - Renew .......... 12-9
Hydraulic Tensrod Cylinder - Renew .................. 12-10
Hydraulic Tonneau Cylinder - Renew................. 12-11
Convertible Top ECU - Renew ........................... 12-13
Hydraulic Pump - Renew ................................... 12-13
Hydraulic Lock Valve - Renew............................ 12-16
RH/LH Front Cantrail Seal - Spare Part
- Renew ............................................................. 12-18
RH/LH Front Cantrail Seal Spare Part Kit
- Renew ............................................................. 12-18
RH/LH Middle Cantrail Seal Spare Part
- Renew ............................................................. 12-18
RH/LH Middle Cantrail Seal Spare Part Kit
- Renew ............................................................. 12-19
Rear Seal Spare Part Assembly Kit - Renew ......... 12-20
LH Fully Automatic Latching Kit - Renew............ 12-21
RH Fully Automatic Latching Kit - Renew ........... 12-22
Convertible Roof Hydraulic Pump
- Check Fluid Level ............................................ 12-23
Cantrail Cover Trim - Renew .............................. 12-25
B-Post Trim Cover - Renew ................................ 12-25
Tonneau Cover - Renew .................................... 12-27
LH Front Main Hydraulic Cylinder Pipe
- Renew ............................................................. 12-29
LH Rear Main Hydraulic Cylinder Pipe

Issue 5, January 2010 Workshop Manual 3-0-1
Engine System (03.00)
Contents
Engine Assembly (03.00) ....................................... 3-0-3Description ............................................................. 0-3
Maintenance ........................................................... 0-4Engine Assembly-Renew ........................................ 0-4
Engine Assembly-Remove for Access and Refit ....... 0-4
Engine Structure (03.01) ........................................ 3-1-1 Description ............................................................. 1-1Engine Block .......................................................... 1-1
Cylinder Block Drain Plug ...................................... 1-2
Knock Sensors........................................................ 1-3
Bedplate ................................................................ 1-3
Engine Mountings .................................................. 1-3
Cylinder Heads ...................................................... 1-4
Inlet/Exhaust Manifolds .......................................... 1-4
Specifications.......................................................... 1-4
Maintenance ........................................................... 1-5 Upper Intake Manifold Assembly (LHD) - Renew ... 1-5
Upper Intake Manifold Asse mbly (RHD) - Renew ... 1-6
Upper Intake Manifold Assembly Gasket (LHD)
- Renew ................................................................. 1-8
Upper Intake Manifold Assembly Gasket (RHD)
- Renew ................................................................. 1-9
Intake Manifold Assembly - Remove for Access
and Refit (With Engine Removed)......................... 1-11
RH/LH Cylinder Head Gasket - Renew................. 1-12
RH/LH Cylinder Head - Overhaul ........................ 1-13
Cylinder Head (Engine Set) - Overhaul ................. 1-14
Valve Set (Engine Set) - Renew
(including de-coke) .............................................. 1-15
Inlet Valve (Set) - Renew ...................................... 1-16
Exhaust Valve (Set) - Renew ................................. 1-16
Spring (Valve Set) - Renew ................................... 1-17
Spring (Inlet Valve Set) - Renew ........................... 1-18
Inlet and Exhaust Valve Seal (Engine Set) - Renew 1-19
Spring (Valve Exhaust Set) - Renew....................... 1-19
RH/LH Cylinder Head Gasket - Renew (with
Engine Removed) ................................................. 1-20
Cylinder Head Gasket (E ngine Set) - Renew (with
Engine Removed) ................................................. 1-21
Lubrication System (03.02) .. .................................. 3-2-1
Dry Sump System .................................................. 2-1
Specifications.......................................................... 2-2 Engine Oil Specification ......................................... 2-2
Maintenance ........................................................... 2-2 Oil Pressure Pump to Sump Gasket - Renew .......... 2-2
Oil Pump Chain - Renew ....................................... 2-2
Oil Sump Pan - Renew........................................... 2-3
Oil Sump Pan - Remove and Reseal ....................... 2-5
Oil Cooler - Renew ................................................ 2-8
Oil Cooler Tank Assembly - Renew ........................ 2-9
Thermostat - Renew ............................................... 2-9
Oil Cooler Tank Pipe Assembly - Renew .............. 2-10
Oil Thermostat to Tank Tube Assembly - Renew .. 2-10
Oil Pump Inlet Tube Assemb ly - Renew ............... 2-11 Oil Pump Inlet Tube Assembly - Renew ............... 2-12
Oil Pump Outlet Tube Asse
mbly - Renew ............ 2-12
Oil Thermostat Cooler Pipe Assembly - Renew .... 2-13
Oil Temperature Controller - Renew .................... 2-14
Oil Sump Pan - Renew (with Engine Removed) .... 2-14
Oil Sump Pan - Remove and Reseal
(with Engine Removed) ........................................ 2-17
Cooling System (03.03) ......................................... 3-3-1 Description ............................................................. 3-1Water Pump .......................................................... 3-1
Thermostat ............................................................ 3-1
Radiator................................................................. 3-1
Cooling Fans .......................................................... 3-1
Coolant Reservoir .................................................. 3-1
Engine Oil Cooler .................................................. 3-2
Specifications......................................................... 3-2
Torque Figures ....................................................... 3-2
Maintenance ........................................................... 3-2 Coolant-Drain/Fill .................................................. 3-2
Thermostat - Renew............................................... 3-3
Water Pump - Renew ............................................ 3-3
Water Pump Pulley - Renew .................................. 3-3
Oil Temperature Controller - Renew ...................... 3-4
Radiator Fan and Motor Assembly - Remove and
Install ..................................................................... 3-4
Radiator and Condenser Assembly - Renew ........... 3-5
Radiator Assembly - Renew.................................... 3-5
Air Conditioning Condenser - Renew ..................... 3-6
Radiator Fan Modulator - Remove and Install......... 3-6
Expansion Tank Assembly - Renew ........................ 3-6
Coolant Recovery Tank Assembly - Remove and
Install ..................................................................... 3-7
Engine Coolant Reservoir Hose - Renew ................ 3-8
Water Inlet/Outlet Manifold - Renew ..................... 3-8
Engine Electric Coolant Temperature Sensor
- Renew ............................................................... 3-10
Thermostat Cover - Renew .................................. 3-11
Fuel Charging System (03.04)................................ 3-4-1 Safety Precautions .................................................. 4-1
Maintenance ........................................................... 4-2Fuel Rails - Renew ................................................. 4-2
Fuel Injection Pressure Sensor - Renew .................. 4-3
Fuel Temperature Sensor - Renew ......................... 4-3
Fuel Injector Engine Set - Renew............................ 4-4
Fuel Injector - Each - LH Bank - Renew.................. 4-5
Fuel Injector - Each - RH Bank - Renew ................. 4-5
Engine Set - Fuel Injector - LH Bank - Renew ......... 4-6
Engine Set - Fuel Injector - RH Bank - Renew......... 4-6
Accessory Drive System (03.05) ............................ 3-5-1 Description ............................................................. 5-1Auxiliary Drives...................................................... 5-1
Automatic Belt Tensioner ....................................... 5-1
Specifications ......................................................... 5-1
Maintenance ........................................................... 5-1

Engine Structure (03.01)
3-1-12Workshop ManualIssue 4, November 2008
6. Install new gasket on exhaust manifold.
7. Install EGR pipe to exhaust manifold and EGR valve.,
8. Install EGR pipe to EGR valve, install pipe union. Do not
torque tighten at this stage.
9. Install and torque tighten bolts (x2), EGR pipe to exhaust manifold. Torque tighten pipe union.
10. Connect EGR vacuum hose.
11. Connect throttle body multiplug and harness clip.
12. Connect manifold heating hoses (x2).
13. Connect EGR vacuum pipe to sensor and manifold.
14. Install coolant pipe bracket, install and torque tighten bolts (x2) and nuts (x2).
15. Connect multiplugs to EGR valve, fuel rail pressure
sensor and injectors.
16. Install alternator and injector harness fir tree clips (x3) to coolant pipe bracket.
17. Install heater hose clips (x2) and EGR vacuum lines clips (x2) to bracket.
18. Install harness bracket to engine.
19. Refit harness fir tree clips to cylinder head.
20. Refit engine breather hose.
21. Install VVT solenoid multiplug, position coil and CMP harness (1x edge clip).
22. Install coil cover.
23. Connect breather hose to manifold (quickfit).
24. Connect IAT multiplug.
25. Secure injector harness clips (x2) to LH engine cover.
26. Connect injector multiplugs (x4).
27. Install pipe support bracket, install and tighten nuts (x2
and bolts(x2).
28. Install harness support bracket, install and tighten bolt (x1) and, nut (x1).
29. Install heater hoses (x2) an d throttle body hoses (x2) in
support bracket.
30. Connect breather hoses (x2) to engine cover.
31. Install coil cover.
RH/LH Cylinder Head Gasket - Renew
Removal
1. Re-install front subframe to body, install and tighten bolts (x6), remove support trolley.
2. Install and tighten engine mounting nuts (x2).
3. With assistance, remove engine lifting beam (SPX M553D). 4. Remove SAI pump and bracket assembly (see Workshop
Manual procedure 03.08.DB/03.08.DJ Pump and
Bracket Assembly - Secondary Air Injection - Renew).
5. Disconnect multiplugs (x2) from knock sensors.
6. Disconnect multiplug from camshaft timing sensor.
7. Remove RH/LH exhaust manifold (see Workshop Manual procedure 09.00.CC/09.00.CD Gasket -
Exhaust Manifold - RH/LH - Renew).
8. Remove RH/LH intake camshaft (see Workshop Manual procedure 03.09.AT/03.09.AV Camshaft - Intake - RH/
LH - Renew).
9. Remove RH exhaust camshaft bearing cap retaining bolts (x10) evenly and in stages (see Figure 1).
Figure 1
10. Note their orientation and markings and remove the RH
exhaust camshaft bearing caps.
11. Remove RH exhaust camshaft (see Figure 2).
12. Remove bolts (x2) securing front end of RH cylinder
head to cylinder block.
Repair Operation Time (ROT)
Figure 2
A0309258
A0309260

Rear Suspension (04.02)
Suspension (04.00)4-2-2 Workshop Manual May 2007
Specifications
Maintenance
RH/LH Rear Hub and Bearing Assembly-
Renew
Removal
1. Raise vehicle on ramp.
2. Remove road wheel(s).
3. Remove RH/LH rear drivesha ft (see Workshop Manual
procedure 05.05.BB/05.05.AB Drive Shaft Assembly -
RH/LH - Renew).
4. Ease caliper pistons to release pads.
5. Remove caliper Allen bolts (x2) release caliper and tie aside.
6. Remove handbrake caliper bolts (x2) and tie caliper aside. 7. Remove brake disc Torx screws (x2), remove disc.
8. Disconnect multiplug fr
om wheel speed sensor.
9. Remove Torx securing wheel speed sensor to vertical link, remove sensor.
10. Remove Allen bolts (x4) se curing hub bearing assembly
in vertical link.
11. Release/remove hub bearing a ssembly from vertical link.
Installation
1. Clean vertical link and mating face on hub bearing
carrier.
2. Install hub bearing assembly. Install and torque tighten Allen bolts (x4).
3. Clean wheel speed sensor.
4. Install wheel speed sensor, install and torque tighten Torx screw.
5. Connect multiplug to wheel sped sensor.
6. Clean disc.
7. Install disc, install and torq ue tighten Torx screws (x2).
8. Install caliper, install and torque tighten Allen bolts (x2).
9. Install handbrake caliper, install and torque tighten
retaining bolts (x2).
10. Install RH/LH driveshaft (see Workshop Manual
procedure 05.05.BB/05.05.AB Drive Shaft Assembly -
RH/LH - Renew).
11. Pump brake pedal.
12. Install road wheel(s).
13. Lower vehicle on ramp.
RH/LH Rear Lower Arm Assembly-Renew
Removal
1. Raise vehicle on ramp.
2. Remove road wheel(s).
3. Remove nut, anti-roll bar li nk to lower suspension arm.
Release link.
4. Remove bolt securing damper to lower suspension arm.
5. Remove bolt and nut/bolt, securing lower suspension arm to subframe.
6. Remove nut/bolt securing lower suspension arm to
vertical link.
7. Release/remove lower suspension arm from subframe and vertical link.
Installation
1. Clean lower suspension arm and mating faces on vertical link, subframe, damper and anti-roll bar link.
2. Install lower suspension ar m to subframe and vertical
link.
Torque Figures
DescriptionNmlb. / ft.
Brake Dust Shield. 9 7
Bearing Assembly to the Vertical
link. 50 37
Halfshaft Nut 300 221.5
Spring and Damper Bracket
Mounting 75-80 55.5-59.5
Spring and Damper Top
Mounting to Bracket 22.5 17
Spring and Damper Lower
Mounting 175 129.5
Track rod Arm to Vertical Link 115 85
Anti-roll Bar Link 110 81.5
Anti-roll Bar Mounting Bolts
Torque bolt 1, then bolt 2, then
bolt 1 again (to allow for rubber
compression) 22.5 17
Ride Height Sensor M8 22.5 17
Torque the following suspensi on fixings with the vehicle
at normal ride height
Vertical Link to the Lower
Suspension Arm. 175 129.5
Vertical Link to the Upper
Suspension Arm. 115 85
Lower Suspension Arm to the
Subframe. 115 85
Upper Suspension Arm to the
Subframe 115 85
Track-Rod Arm to Subframe 115 85
Normal ride height: 2 x 37.5kg in front seats (37.5kg in
each seat) plus a full fuel tank.
Repair Operation Time (ROT)
Repair Operation Time (ROT)
ItemCode
Rear Lower Arm Assembly-Renew RH04.02.AC
Rear Lower Arm Assembly-Renew LH04.02.AD

Anti-lock Braking System (ABS) (06.09)
Brake system (06.00)
Issue 4, November 2008 Workshop Manual 6-9-3
Engine Intervention
In the event of wheel-slip the ABS / DSC module calculates
the torque, which should be applied by the engine to reduce
the wheel-slip (this torque does not exceed driver demand).
Engine torque reduction is then requested from the PCM via
the CAN bus. The PCM, in response to these signals, reduces
engine torque by controlling the ignition and fuelling. A
traction control gearshift pattern is automatically selected
within the automatic transmission software whenever
traction control is active.
Brake Intervention
This function operates by increasing the pressure in the
brake caliper of the slipping wheel, by closing the separation
valve and the inlet valve of the non-slipping wheel and
running the modulator pump. This takes fluid from the fluid
reservoir via the non-actuated master cylinder and
pressurizes the brake caliper. The pressure is modulated at
the caliper via the inlet and outlet valves to achieve the
desired wheel-slip target to maximize traction.
ABS / DSC Circuit
Specifications
SR,05UR,05YR,0.5NR,0.5
WR,05NR,05
YG,05WG,05
YU,05WU,05
W,05N,05
W,0.5U,0.5R,0.5
P,0.5Y,0.5
B,0.5WG,0.5GB,0.5
B,0.5BG,0.5
GW,0.5
P,0.5
U,0.5
U,3.0
BK,1.0BK,1.0
P,0.35P,0.35P,0.35 U,3.0
WG,05YG,05
WU,05
SR,05UR,05YR,0.5NR,0.5
WG,05YG,05
WU,05
WG,05YG,05
WU,05YU,05YU,05YU,05Module-ABS
OBD2-Body (B)
Earth-Module ABSEarth-Module ABS
C1184-18C2410-6
Sensor-Brake Pressure
Sensor-Brake Pedal Travel
Sensor-Rear ABS-LH
C0746-7C0746-6
C0746-5
Switch-Brake Boost
Sensor-Yawrate / Acceleration
C2411-6C2411-5C2411-4
C2411-3
C0144-7C0144-3
C0144-2
Sensor-Front ABS-LH
Sensor-Front ABS-RH
C2410-10C2410-9
C2410-8
Sensor-Rear ABS-RH
C0746-4C0144-1C2410-7
C0877-7
K-LINESPL50-KL/FA
C0362-1C0434-1
C2444-2
SIGC2444-1
GND
C2444-3
SENSP
C2446-2
GNDC2446-1
SENSPT
C2446-3
SIG
C0501-47
GNDC0501-16
GND
C0501-2K-LINE
C0501-24
GND
C0501-31
PWM
C0501-30
NC
C0501-25
CAN HS-
C0501-28
SIGC0501-27
NO
C0501-29
CAN HS+C0501-6
CLUST_SP
C0501-17
PWR
C0501-5
GND
C0501-32BATT FEED
C0501-7
SENSPT
C0501-3 SIG
C0501-20 SIGC0501-19
GND
C0501-18 SENSP
C0501-4IGN FEED
C0501-46
F/L/GNDC0501-45
F/L/SIG
C0501-42
R/R/GNDC0501-43
R/R/SIG
C0501-36
R/L/SIG
C0501-34
F/R/SIGC0501-33
F/R/GND
C0501-1
BATT FEEDC0501-37
R/L/GND
C2448-5
C2448-3
C2448-2C2448-1
C2448-4
C1656-3 CLUS_SPC1656-2
CAN HS+C1656-1 CAN HS-
C1656-5
GND
C0516-2-C0516-1+
C0517-2
-C0517-1+
C0502-1
+
C0503-2 -C0503-1+
C0502-2 -
Sensor
Steering Angle
Sheet 61
F4
30.0 AmpsRelay 1
Underbonnet Fusebox
DIODE 1
F28
10.0 Amps
F20
30.0 Amps
F19
30.0 Amps
Earth
Steering Angle
Sensor
C0576-1
C0577-4C2608-1 VBATT
C0573-2
C0571-3
C0573-3
C0578-8SPL5-VIGN/FOR
C1672-5
VPWRC1672-8
GND
011-6-003
Oils/Greases
Brake FluidCastrol Response Super Dot 4
Torque Figures
DescriptionNm.lb. / ft.
Modulator to Bracket 5 4
Modulator / Bracket to body 9 7
Brake hose unions 17 1413
10.5
17 Nm. 17 Nm.
17 Nm.
14 Nm.
14 Nm. 14 Nm.

May 2007 Workshop Manual 10-1-1
Fuel (10.00)
Contents
Fuel Tank and Lines (10.01) ................................ 10-1-2Description ............................................................. 1-2 Fuel Tank............................................................... 1-3
Fuel Pumps ............................................................ 1-3
Jet Pumps .............................................................. 1-4
Filler Neck and Check Valve .................................. 1-4
Valves and Sensors ................................................. 1-5
Fuel System Schematic ........................................... 1-5
Evaporative Loss System ......................................... 1-6 System Operation .................................................. 1-6
Fuel Tank Vents and Control Valves ....................... 1-6
Safety Precautions .................................................. 1-7
Specifications.......................................................... 1-7
Maintenance ........................................................... 1-8 Fuel System ........................................................... 1-8
Fuel Filter Assembly-Renew .. ................................. 1-8
Fuel Pump and Reservoir Assembly-Renew ............ 1-9
Fuel Tank and Canister Assembly-Renew ............. 1-11
Fuel Tank and Canister Assembly-Remove
for Access/Refit ................................................... 1-13
Fuel Tank Sender Assembly-Renew ...................... 1-15
Fuel Vapour Pipe Assembly-Renew ...................... 1-16
Fuel Supply and Vapour Pipe Assembly-Renew .... 1-17
Manifold Supply Fuel Pipe Assembly- Renew ....... 1-17

Fuel Tank and Lines (10.01)
Fuel (10.00)10-1-2 Workshop Manual May 2007
Fuel (10.00)
Fuel Tank and Lines (10.01)
Description
This vehicle uses a return less fuel system in which the fuel pump, controlled by the fuel pump driver module, is run to
supply fuel through one in-tank filter to the fuel rail (Refer to ’Fuel Charging System (03.04)’, page 3-5-1). A pressure senso r
and a temperature sensor are fitted on th e primary fuel rail. The fuel pump speeds are varied as required to regulate the
fuel pressure in the fuel rails.
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Fuel Tank and Lines (10.01)
Fuel (10.00)
May 2007 Workshop Manual 10-1-3
Fuel Tank
The fuel tank incorporates a single filler neck and check valve, internal fuel pump, internal fuel filter, a sender unit and an
‘on board refuelling vapour recovery’ system.
Fuel Pumps

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The modular fuel pump is immersed in the base of the fuel
tank. The pump can deliver up to 150 litres/hour. The in-
tank fuel line connects to the external line using a quick-fit
connector in the base of the fuel tank. During normal running, pressu
rised fuel from each fuel
pump passes from the tank, through an 3 micron in-tank fuel
filter to one of the two fuel rails on the engine.
Fuel temperature is measured on the primary fuel rail. If fuel
temperature becomes excessive, the fuel pressure is
increased to prevent fuel vaporisation (boiling).
Fuel pressure is measured by sensors on each fuel rail. The
fuel pressure to each rail is regulated as required by
continuously changing the run speed of the associated fuel
pump. Maximum pressure in the system is limited to 5.3 bar
by in-tank pressure regulators.
A constant head of fuel is maintained in the fuel pump
modules to ensure that the pumps cannot run dry in a ‘low
fuel’ situation.

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