1998 JAGUAR X308 engine

se
condary chain, in preparation for installing to the engine.
1. Install 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. Install, but do not tighten, each bolt which secures the VVT unit and the exhaust sprocket to the camshafts.

23 .
Install the chain t
ensioning tool 303 - 532 to the exhaust camshaft
sprocket.
Re p
osition the sprocket (and the VVT unit) for the most advantageous
position for use of the tool.
Re
move the tool.

24 . Install the
primary timing chain.
1. Install the primary chain to position over the crankshaft sprocket and the VVT unit sprocket. There mu st be no slack on the drive
side of the primary chain and the VVT unit must not be rotated on
the camshaft.

25 . Install the pri
mary chain tensioner blade.
1. Position the tensioner blade to the cylinder block.
2. Install the retaining / pivot bolt and tighten it to 14 Nm.

26 . P
ush the primary chain tensioner piston into the body to provide clearance
for installing.
1. Insert a thin rigid wire through 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.
Rem
ove the wire.
27. Assemble the tensioner.
1. Install the two mounting bolts to the tensioner.
2. Locate the tensioner back-plate to the two bolts.

2.
Connect the multi-plug to the temperature sensor.
3. Expand and reposition the hose clip along the bypass hose.
43. Install the Inlet Manifold. Refer to Operation 30.15.01 in this Section. This
operation includes installing the throttle housing.
44. Install the engine front cover.For additional information, refer to: Engine
Front Cover (303-01 Engi
ne, In-vehicle Repair).
45. Move the engine compartment cover from the service position and connect
the gas struts.
46. Remove the paint protection sheets and close the cover.
47. Connect the battery and install th e battery cover.For additional
information, refer to: Battery Connect
(414
-01 Battery, Mounting and
Cables, General Procedures).

Engine - Engine Front Cover
In-vehic
le Repair
Remov
a
l
1.
Op
en the engine compartment and fit paintwork protection
sheets.
2. Set the bonnet to the service access position.

3. Disc
onnect the batt
ery ground cable.
Re
move the battery cover.
4. Drain the coolant from the radiator. Refer to Operation
26.10.01.

5. Disc onne
ct the radiator top hose.
1. Slacken the hose retaining clip and reposition the clip
along the hose.
2. Disconnect the hose from the radiator.

6. Disc
onnect the top hose from the coolant outlet pipe.
1. Release and reposition th e hose clip, and disconnect
the top hose.
7. Slacken the three screws which secure the water pump pulley.

8. Remove the
drive belt from
the generator and accessory
drive.
1. Use a spanner e.g. Churchill JD - 230 or Snap On XDHM 1415, on the centre bo lt of the belt tensioner
idler pulley, to turn the adju ster assembly to the left
against spring tension.
2. Whilst holding the tensioner against spring tension, remove the drive belt from the generator pulley.
Release the tensioner sl owly and remove the
spanner.
D
isconnect the belt from the
other pulleys and remove it.


9. Re
move the pulley from the water pump.
1. Remove the pulley securing screws.
2. Remove the pulley from the water pump.
10. Remove the belt tensione r assembly, from the Front
Accessory Drive. Refer to Operation 12.10.41.
11. Remove the idler pulley, from the Front Accessory Drive.
Refer to Operation 12.10.43.
12. Remove the crankshaft damper. Refer to Operation 12.21.09.
13. Carefully remove the engine covers, taking care not to
damage the plasti c fixings or the rubber inserts.
14. 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.

15. Di
sconnect the air cleaner cover.
R
e
lease the five clips which se
cure the air cleaner cover.
16. Disconnect the air flow meter multi-plug.

17 . R
emove 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 purge valve, fro m the evaporative control
system. Refer to Operation 17.45.01.
19. Remove the on-plug ignition coils. Refer to Operation
18.20.41 and 18.20.42.
20. Remove the camshaft covers. Refer to Operations 12.29.43
and 12.29.44.
21. Remove the variable valve ti ming solenoids. Refer to
Operation18.30.63.
22. Disconnect the engine harness retaining clips from the timing
cover.

23
.
Remove the timing cover securing bolts.
1. Remove the twenty-fou r bolts which secure the
timing cover.

24
.
Remove the timing cover, step 1.
Ease the cover towards the front of
the vehicle to separate

it from the engine.

25
.
Remove the timing cover, step 2.
Stan
ding at the right hand side
of the vehicle, rotate and
manoeuvre the cover upwards to clear the water pump
and hoses.
26. Remove the timing cover, step 3.
Li
ft the cover clear of th
e engine compartment.

In
stallation

27
. Clean all parts and mating faces.


1. Fit ne
w seals to the timing cover.
1. Fit and fully locate, a new seal to the inner groove on the face of the timing cover.
2. Fit and fully locate, a new seal to the outer groove on the face of the timing cover.
Re
move the transit ring and check that the oil seal is not
damaged.

2. Appl y s
ealant to the eight joints on the engine face.
Sealant
beads to be 3mm di ameter an
d 12mm long. Cut
the nozzle of the sealant tube to produce a 3mm bead.
(Fit and tighten the securing bolts within twenty minutes
of sealant application)

3. Re
fit the timing cover, step 1.
Lo
wer th
e cover into the engine compartment, to its
approximate position.
4. Refit the timing cover, step 2.
Stan din
g at the right hand side
of the vehicle, rotate and
manoeuvre the cover downwards to clear the water pump

and hoses.

5. R
efit the timing cover, step 3.
Ease

the cover towards the engi
ne and locate it directly
onto the dowels so that th e gaskets or sealant are not
smeared.

6. F
it and tighten the securing bolt
s in the correct order. Tighten
to 11-13 Nm.
7. Reposition and secure the engine harness clips to the timing
cover.