1998 JAGUAR X308 body

Engine - Valve Cover Gasket LH
In-vehicle Repair
Removal
1. Open the engine compartment and fit paintwork protection
sheets.
2. Carefully remove the le ft hand engine cover, taking care not to
damage the plasti c fixings or the rubber inserts.

3. 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.

4. Disconnect the air cleaner cover.
Release the five clips which se cure the air cleaner cover.
5. Disconnect the air fl ow meter multi-plug.

6. Remove the intake tube / air flow meter / air cleaner cover
assembly.
1. Remove the intake tube / air flow meter / air cleaner
cover assembly.
2. Remove and discard the ru bber seal; air intake tube
to throttle body.
7. Remove the on-plug ignition coils from the 'B' bank. Refer to
Operation 18.20.42.
8. Remove the purge valve, from th e evaporative control system.
Refer to Operation 17.45.01.
9. Release the four clips which secure the engine harness to the
cam cover.

6. Reposition the clips which secure the engine harness to the
cam cover.
7. Refit the on-plug ignition coils and the coil cover. Refer to
Operation 18.20.42.

8. Fit the intake tube / air flow meter / air cleaner cover
assembly.
1. Fit a new rubber seal; air in take tube to throttle body.

2. Fit the intake tube / air flow meter / air cleaner cover
assembly.

9. Reconnect the air cleaner cover.
Fit the five clips which secu re the air cleaner cover.
10. Connect the intake tube to the throttle body.
1. Connect the intake tube to the throttle body.
2. Fit the two bolts which secure the intake tube to the

throttle body.
11. Refit the purge valve. Refer to Operation 17.45.01.
12. Reconnect the air flow meter multi-plug.
13. Refit the left hand engine cover.
14. Remove the paintwork protection sheets and close the engine
compartment.

Installation
20. Clean and inspect all relevant components.

1. Push the tensioner piston (secon dary chain) into the body to
provide clearance for fitting.
1. Insert a thin rigid wire th rough the hole in the end of
the tensioner piston to displace the ball from the non-
return valve seat.
2. With the wire in position, press the piston fully into the tensioner body.
Remove the wire.

2. Fit the VVT unit to the engine.
Assemble the VVT unit, the exhaust camshaft sprocket
and the secondary chain, in pr eparation for fitting to the
engine.
1. Fit the above assembly to the camshafts with the chain correctly positioned over the tensioner; VVT
unit to the inlet and the sprocket to the exhaust.
2. Fit, but do not tighten, each bolt which secures the VVT unit and the exhaust sprocket to the camshafts.
Allow the VVT unit sufficien t space to fit the primary
chain, in a la ter operation.

3. Fit the chain tensioning tool 303 - 532 to the exhaust camshaft
sprocket.
Reposition the sprocket (and the VVT unit) for the most
advantageous position for use of the tool.
Remove the tool.

4. Refit the primary timing chain.
1. Lift the primary chain an d position it over the VVT
unit sprocket (the VVT unit mu st be pulled forward to
clear the cylinder head casting). There must be no
slack on the drive side of the primary chain and the
VVT unit must not be rotated on the camshaft.
2. Slide the VVT unit fully on to the camshaft.
5. Fit the primary chain tensioner blade.
1. Position the tensioner blade to the cylinder block.

Installation

15. Remove the primary ch ain tensioner blade.
1. Remove the pivot bolt which secures the tensioner blade.
2. Remove the tensioner blade.
16. Disconnect the primary chain from the VVT unit and the
crankshaft sprocket, and remove it completely.
17. Do not tamper with the three bolts which secure the VVT
mechanism to the sprockets. It is sealed at the factory to the
correct valve timing specificatio n for the engine and is supplied
only as a complete unit.

18. Remove the VVT unit.
1. Remove the securing bolt from both the VVT unit and
the exhaust cam sprocket.
2. Remove the VVT unit, exhaust sprocket and secondary chain as an asse mbly (release the chain
from the tensioner which is still secured to the
cylinder head).
Remove the secondary chain from the VVT unit and the
sprocket.
19. Clean and inspect all relevant components.

1. Push the tensioner piston (secon dary chain) into the body to
provide clearance for fitting.
1. Insert a thin rigid wire th rough the hole in the end of
the tensioner piston to displace the ball from the non-
return valve seat.
2. With the wire in position, press the piston fully into the tensioner body.
Remove the wire.
2. Fit the VVT unit to the engine.
Assemble the VVT unit, the exhaust camshaft sprocket
and the secondary chain, in pr eparation for fitting to the
engine.
1. Fit the above assembly to the camshafts with the chain correctly positioned over the tensioner; VVT
unit to the inlet and the sprocket to the exhaust.
2. Fit, but do not tighten, each bolt which secures the VVT unit and the exhaust sprocket to the camshafts.

ENSURE THAT ALL FIRE PREVENTION PROCEDURES ARE ACTIVE.
BEFORE PROCEEDING, IT IS ESSENTIAL THAT THE WARNING NOTES GIVEN IN SECTION 100-00 (UNDER THE
HEADING 'SAFETY PRECAUTIONS') ARE READ AND UNDERSTOOD.

9. Depressurise the fuel system.
Ensure 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.
Place a closed container, su itable for collecting fuel,
adjacent to the vehicle. Remove the lid.

10. Connect the fuel injection pressure test equipment 310 - 058
(or other suitable type). Insert the drain / bleed tube into the
fuel container. Follow the ma nufacturer's instructions and
depressurise the fuel system.
11. 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.

12. Disconnect the breather pipe from 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.
13. Disconnect the air flow meter multi-plug.
14. Cut and remove the strap which secures the vacuum pipe to
the induction elbow.
15. 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.

16. Disconnect the air cleaner cover.
Remove the five clips which se cure the air cleaner cover.

17. Remove the intake tube / air flow meter / air cleaner cover
assembly.
1. Remove the intake tube / air flow meter / air cleaner
cover assembly.
2. Remove and discard the ru bber seal; air intake tube
to throttle body.

18. Remove the centre trim panel from the engine compartment.
1. Remove the left hand side enclosure panel.
2. Remove the centre trim panel.
19. Release the hoses (Quick Fit connections) from the expansion
tank, using 303 - 623.
1. Release the hose, expansion tank to thermostat housing (coolant outlet pipe on supercharged
engines).

56. Disconnect the fuel feed and return hoses.
1. Disconnect the fuel hoses at the Quick Fit connectors,
using special tool 310 - 044 for the feed hose and
310 - 54 for the return hose.
Disconnect the return hose from the feed hose clip.
Fit blanking plugs to the pipes.

57. Disconnect the pipes from the purge valve.
1. Remove the clip which secu res the part load breather
hose to the purge valve.
2. Disconnect the part load breather hose.
3. Disconnect the vacuum hose from the purge valve and reposition the hose.

58. Disconnect the throttle cable.
1. Secure the cable abutment to the bracket with tape or a ratchet strap, if nece ssary (to save subsequent
adjustment procedure). Remove the bolts which
secure the abutment bracke t to the throttle body.
2. Rotate the butterfly actuator cam and disconnect the cable. Reposition the cable.
59. Disconnect the heater and brake servo hoses.
1. Disconnect the he ater return hose.
2. Release the heater feed hose locking lever and
disconnect the hose.