1998 JAGUAR X308 fuel

Engine - Intake Manifol
d
In-v
ehic
le Repair
Remov
a
l
W
A
RNING: BEFORE PROCEEDING, IT IS ESSENTIAL THAT
THE WARNINGS GIVEN IN SECTION 100-00 (UNDER THE
HEADING 'SAFETY PRECAUTIONS') ARE READ AND UNDERSTOOD.
S p
ecial Tool(s)

Qu
ic
k Fit Connector Release Tool
310-044

Qu ic
k Fit Connector Release Tool
310-054

Inject or Remov
al Tools
303-539

F u
el Injection Pressu
re Test Equipment
310-058
1. Open the engine compartment and fit paintwork protection
sheets.
2. Carefully remove the en gine covers, taking care not to damage
the plastic fixings or the rubber inserts.

3. Depress
urise the fuel system.
E
n
sure that the ignition is
switched off and remove the
valve cap from the fuel cross-over pipe. Place a cloth
under the valve to collect any spillage.
Pla c
e a closed container, su
itable for collecting fuel,
adjacent to the vehicle. Remove the lid.
4. Connect the fuel injection pres sure test equipment 310 - 058

(or other sui
table type). Insert the drain / bleed tube
into the fuel
container. Follow the manufa cturer's instructions and
depressurise the fuel system.
5. Store the drained fuel safely and ensure that the lid is closed
securely. Remove the equipmen t and discard the cloth from
beneath the valve. refit the valve cap.

6. Di
sconnect the batt
ery ground cable.
R
emove the battery cover.

7. Disconnect the breather pipe fro m the
A-Bank camshaft cover.
1. Disconnect the breather pipe from the stub pipe.
2. Remove and discard the O-ring seal from the breather
pipe.
8. Disconnect the air fl ow meter multi-plug.
9. Cut and remove the strap which secures the vacuum pipe to
the induction elbow.

10
.
Disconnect the intake tube from the throttle body.
1. Remove the two bolts which secure the intake tube to the throttle body.
2. Disconnect the intake tube from the throttle body.

20. Release the induction elbow su pport; working from the right
hand side.
1. Disconnect the vacuum pi pe from the centre of the
induction elbow.
2. Remove the upper bolt from the induction elbow support bracket.

21. Release the induction elbow su pport; working from the left
hand side.
1. Disconnect the vacuum pipe from the front of the
induction elbow.
2. Disconnect the engine breather T-piece from the induction elbow.
3. Remove the upper bolt from the induction elbow support bracket.
4. Loosen, but do not remove , the lower two bolts at the
induction elbow support bracket.

22. Disconnect the electrical conne ctor from each fuel injector.
23. Disconnect the fuel feed hose.
1. Disconnect the fuel f eed hose at the Quick Fit
connector, using special tool 310 - 044.

24. Disconnect the fuel return hose.
1. Disconnect the fuel retu rn hose at the Quick Fit
connector, using special tool 310 - 054.

25. Remove the inlet manifold.
1. Remove the ten bolts which secure the inlet manifold.

2. Remove the inlet manifold

26. Remove and discard the eight se als from the inlet manifold
ports.
27. Remove the fuel pressure regulator from the manifold.
1. Remove the two bolts which secure the pressure regulator.
2. Remove the pressure regulator.

3. Remove and discard the regulator O-ring seal.

28. Remove the fuel feed pipe from the manifold.
1. Remove the two bolts which secure the fuel feed pipe
to the inlet manifold.
2. Remove the fuel feed pipe.
3. Remove and discard the pipe O-ring seal.

29. Remove the fuel cross over elbow from the inlet manifold.
1. Remove the one bolt each side which secures the cross over elbow.
2. Remove the elbow from the manifold.
3. Remove and discard the O-ring seal.

30. Remove the fuel injectors.
1. Remove the securing scre ws from each fuel injector.
2. Remove the inject or clamping plates.
31. Remove the injectors from the ma nifold; use special tool 303
- 539 if necessary.

Installation


32. Remove and discard the sixt een sealing rings from the
injectors.

33. Remove the throttle induction elbow from the inlet manifold.
1. Remove the seven bolts which secure the throttle induction elbow.
2. Remove the elbow.
3. Remove the induction elbow seal from the manifold.
1. Clean all parts and relevant mating faces.

2. Fit the fuel pressure regulator to the manifold.
1. Lubricate and fit a new O-ri ng seal to the regulator.
2. Fit the pressure regulator to the manifold.
3. Fit the two bolts which secu re the pressure regulator.
3. Fit the fuel feed pipe to the manifold.
1. Lubricate and fit a new O-ri ng seal to the feed pipe.

2. Fit the feed pipe to the manifold.
3. Fit the two bolts which secure the feed pipe.

4. Fit the fuel cross over elbow to the inlet manifold.
1. Lubricate and fit new O-ri ng seals to the cross over
elbow.
2. Fit the cross over elbow to the manifold.
3. Fit the one bolt each side which secures the cross over elbow.

5. Fit the sealing rings to the fuel injectors.
1. Lubricate and fit the sixteen (two to each injector) new sealing rings.

6. Fit the fuel injectors to the intake manifold.
1. Locate the injectors into the manifold.
2. Position the injector clamping plates.
3. Fit the securing screws for each fuel injector.
7. Fit the throttle induction elbow to the inlet manifold.
1. Fit a new induction elbow seal to the manifold.
2. Fit the elbow.
3. Fit the seven bolts which secure the throttle induction

elbow.
8. Refit the Manifold Assembly to the Engine, as follows.

9. Fit eight new seals to the inlet manifold ports.

10. Fit the inlet manifold to the engine.
1. Fit the inlet manifold.
2. Fit the ten bolts which secure the inlet manifold.

11. Connect the fuel feed hose.
1. Connect the fuel feed hose at the Quick Fit connector. Ensure that the hose is fully seated to the feed pipe.
12. Connect the fuel return hose.
1. Connect the fuel return hose at the Quick Fit
connector. Ensure th at the hose is fully seated to the
feed pipe.