1998 JAGUAR X308 lock

8.
With assistance, install the cylinder head.
Engage t

he cylinder head with the dowels on the block face, and the
exhaust manifold flange with the studs on the downpipe catalyst.
9. Install the cylinder head bolts, hand tight only.

10 . Ti
ghten the cylinder head bolts in stages, in the sequence shown, using
the following procedure:
Stage 1 - ti
ghten all M10 bolt
s in sequence, to 20 Nm.
11. Stage 2 - tighten all M10 bolt s in sequence, to 35 Nm.

To th
e upper face of each bearing surface (two places) in the cylinder
head.
To th
e upper face of each bearing surface (two places) in each bearing
cap.
On
the cam lobes ONLY, not on the base circle area.

17
.
Install the camshafts.
1. Install the camshafts to position in the cylinder head, with the timing flats uppermost.
2. Install the camshaft caps to their respective locations (inlet 0 to 4 and exhaust 5 to 9 from the front) and in the correct orientation
(arrow to front of engine).
3. Install and tighten the cap securing bolts. Tighten evenly, in stages, to 10 Nm.
18. Install the camshaft locking tool 303 - 530, align the camshafts as
necessary.

19
.
Install the chain guide.
• NOTE: The chain guide must be installed so that the slotted hole is
towards the top, and the raised shoulder to the cylinder block. 1. Install the chain guide to the block and locate it onto the upper retaining pin.
2. Install the retaining bolt and tighten it to 12 Nm.

20
.
Push the secondary chain tensioner piston into the body to provide
clearance for installing the chain.
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.
Re
move the wire.

21
.
Install the secondary chain tensioner to the engine.
1. Fully seat the tensioner to the cylinder head.
2. Install the two bolts which secure the tensioner and tighten to 12 Nm.
22. Install the VVT unit to the engine.
A
ssemble the VVT unit, the exhaust camshaft sprocket and the

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.

28
.
Install the tensioner to the cylinder block.
1. Position and align the tensioner to the cylinder block and to the mating slot on the rear face of the tensioner blade.
2. Install and tighten the two bolts to 12 Nm.

29
.
Use a wedge 303 - 533 (or two if required) between the primary chain
tensioner and tensioner blade, to ta ke up the slack in the chain, for
tightening the VVT unit and exhaust camshaft sprocket.

30
.
CAUTION: Make sure that a new bolt is installed.
Tighten the exhaust camshaft sprocket securing bolt. 1. Instal the chain tensioner t ool 303 - 532 to the sprocket holes.
Appl
y force to the tool in an anti
-clockwise direction to tension the
chain on its drive side.
2. Whilst applying the opposing force to the sprocket and chain, tighten the sprocket securing bolt to 20 Nm + 90°.

31
.
CAUTION: Make sure that a new bolt is installed.
Tighten the VVT unit securing bolt. 1. Whilst still applying the opposing force to the sprocket and chain (using 303 - 532), check that the wedges are still in place, tighten
the VVT unit securing bolt to 20 Nm + 90°.
R
emove the chain tensioning tool and the wedge(s).
32

.
Remove the camshaft locking tool 303 - 530.
33. Raise the vehicle on the ramp.
34. Remove the crankshaft setting tool 303 - 531.
35. Install the crankshaft position sensor.
1. Install the sensor to the flywheel housing and Install the securing bolt. Tighten to 10 Nm.

2. In
stall the access grommet to the housing.
36. Lower the ramp.

37. Ins
tall and tighten the nuts which secure the exhaust manifold to the
downpipe catalyst.

38 . In
stall new seals to the A-Bank VVT bush carrier.
1. Install the new sealing ring (scarf jointed) to the carrier bush groove.
2. Install a new O-ring to the carrier oil-way.

39 . Install the bush c
arrier to the cylinder block.
Lu
br
icate the seal (scarf
jointed) and the bush.
1. Install the bush carrier assembly.
Chec k that
the seals are
in place and that the ri ng dowels are engaged
squarely. Fully locate the assembly as much as possible by hand
pressure.
2. Install the three securing bolts. Tighten to 21 Nm.
40. Install new sealing rings to the coolant outlet pipe grooves.

41. Install the coolant
outlet pipe.
1. Install the outlet pipe to the bypass hose and to the cylinder heads.
2. Install the four bolts which secure the outlet pipe.
42. Connect the hoses and multi-plug to the coolant outlet pipe.
1. Connect the heater hose and reposition the hose clip.

Engine - Exhaust Camshaft LH
In-vehicle Repair
Removal
Installation
1. Open the engine compartment and fit paintwork protection
sheets.
2. Set the engine compartment cover to the service access
position.

3. Disconnect the batt ery ground cable.
Remove the battery cover.
4. Remove Exhaust Camshaft Sp rocket. Refer to Operation
12.65.74.
5. Remove the camshaft locking tool 303 - 530 (fitted for
previous operation).

6. Remove the camshaft.
1. Remove the bolts which secure the camshaft caps; loosen them evenly, in stages.
2. Remove the camshaft caps. Note their orientation and
markings - each is marked with its position (a
number) and orientation (an arrow).
3. Remove the camshaft from the engine.
7. Clean and inspect all relevant components.

1. Apply oil (EP - 90) to the cams haft and bearing surfaces, as
follows:
To the upper face of each be aring surface (two places) in
the cylinder head.
To the upper face of each be aring surface (two places) in
each bearing cap.
On the cam lobes ONLY, not on the base circle area.
2. Refit the camshaft.
1. Fit the camshaft to position in the cylinder head, with the timing flats uppermost.

2. Fit the camshaft caps to their respective locations (5 to 9 from the front) and in the correct orientation
(arrow to front of engine).
3. Fit and tighten the cap securing bolts. Tighten evenly,
in stages, to 9 - 11 Nm.
3. Fit the camshaft locking tool 303 - 530 (fitted for following
operation) align the camshaft as necessary.
4. Refit Exhaust Camshaft Sprocket . Refer to Operation 12.65.74.
5. With the camshaft (303 - 530) and crankshaft (303 - 531)
setting tools removed, after the previous operation, adjust the
valve clearances on the exhaus t camshaft. refer to Operation
12.29.48.
6. Move the engine compartment co ver from the service position
and connect the gas struts.
7. Remove the paint protection sheets and close the cover.
8. Connect the battery and fit the battery cover.
Refer to the Battery Reconnection Procedure 86.15.15.

Engine - Exhaust Camshaft RH
In-vehicle Repair
Removal
Installation
1. Open the engine compartment and fit paintwork protection
sheets.
2. Set the engine compartment cover to the service access
position.

3. Disconnect the batt ery ground cable.
Remove the battery cover.
4. Remove Exhaust Camshaft Sp rocket. Refer to Operation
12.65.73.
5. Remove the camshaft locking tool 303 - 530 (fitted for
previous operation).

6. Remove the camshaft.
1. Remove the bolts which secure the camshaft caps; loosen them evenly, in stages.
2. Remove the camshaft caps. Note their orientation and
markings - each is marked with its position (a
number) and orientation (an arrow).
3. Remove the camshaft from the engine.
7. Clean and inspect all relevant components.

1. Apply oil (EP - 90) to the cams haft and bearing surfaces, as
follows:
To the upper face of each be aring surface (two places) in
the cylinder head.
To the upper face of each be aring surface (two places) in
each bearing cap.
On the cam lobes ONLY, not on the base circle area.
2. Refit the camshaft.
1. Fit the camshaft to position in the cylinder head, with the timing flats uppermost.