1998 JAGUAR X308 coolant

E
ngine - Cylinder Head LH
In-ve
hicle Repair
Remova

l
CAU
TION: If a replacement cylinder head is to be installed to a
vehicle with variable camshaft timing (VCT) the cylinder head m ust have the
oil gallery blind rivet removed before installation.
Spe
cial Tool(s)

Cams

haft setting
303-530

Ti
ming chain tensioning
303-532

Wedges, prim
ary chain
303-533

Cr
ankshaft setting
303-531
1.
Open the engine compartment and install paintwork protection sheets.
2. Set the engine compartment cover to the service access position.

3.
Disconnect the battery ground cable.
Re

move the battery cover.
4. Remove the engine fron cover.For additional information, refer to: Engine
Front Cover (303-01 Engi
ne, In-vehicle Repair).
5. Remove the Inlet Manifold. Refer to Operation 30.15.01 in this Section. This operation includes depressurising the fuel system and removing the throttle
housing.
6. Disconnect the hoses and multi-plug from the coolant outlet pipe.
1. Release and reposition the hose clip, and disconnect the heater hose.
2. Disconnect the multi-plug from the temperature sensor.
3. Release and reposition the hose clip along the bypass hose.

7.
Remove the coolant outlet pipe.
1. Remove the four bolts which secure the outlet pipe.
2. Remove the outlet pipe from the bypass hose and from the cylinder heads.
8. Remove and discard the sealing ring s from the outlet pipe grooves.

9.
Remove the nuts which secure the catalytic converter to the B-Bank
exhaust manifold flange.

10 . Re
move the VVT bush carrier.
1. Remove the two bolts and one nut which secure the carrier to the cylinder block.
2. Release the carrier from the two ring dowels and remove it.

11. R
emove the seals from the bush carrier.
1. Remove the sealing ring (scarf jointed) from the carrier bush groove.
2. Remove the O-ring from the carrier oil-way recess.
12. Raise the vehicle on a ramp.
13. Remove the crankshaft position sensor.

33. R
emove residual coolant from the cylinder head.
1. Place a drain tray under the engine.
2. Use a syringe with a length of thin rubber pipe connected, to drain the residual coolant from the outlet pipe water-way.
A s u
itable syringe is Snap On YA 745.

34 . R
emove the cylinder head.
1. Place cloth around the area of th e cylinder head to absorb coolant
spillage, when removing the head.
2. Remove the bolts (10xM10 and 2xM8) which secure the cylinder head.
3. With assistance, remove the cylinder head.

35 . R
emove the cylinder head gasket.
1. Note how the gasket is installed and remove it.
2. Remove and discard the cloth, placed previously to absorb coolant spillage.
Wipe up any l e
aked coolant.
36. Remove the coolant drain tray from under the engine.
37. Remove and discard the gasket from the downpipe catalyst.

d
ownpipe catalyst.

39
.
Install new seals to the B-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.

40
.
Install the bush carrier to the cylinder block.
Lu
bricate 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 two securing bolts and one nut. Tighten to 21 Nm.
41. Install new sealing rings to the coolant outlet pipe grooves.

42
.
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.

43
.
Connect the hoses and multi-plug to the coolant outlet pipe.
1. Connect the heater hose and reposition the hose clip.
2. Connect the multi-plug to the temperature sensor.
3. Expand and reposition the hose clip along the bypass hose.
44. Install the Inlet Manifold. Refer to Operation 30.15.01 in this Section. This
operation includes installing the throttle housing.
45. Install the engine front cover.For additional information, refer to: Engine
Front Cover (303-01 Engi
ne, In-vehicle Repair).

E
ngine - Cylinder Head RH
In-ve
hicle Repair
Remova

l
CAU
TION: If a replacement cylinder head is to be installed to a
vehicle with variable camshaft timing (VCT) the cylinder head m ust have the
oil gallery blind rivet removed before installation.
Spe
cial Tool(s)

Cams

haft setting
303-530

Ti
ming chain tensioning
303-532

Wedges, prim
ary chain
303-533

Cr
ankshaft setting
303-531
1.
Open the engine compartment and install paintwork protection sheets.
2. Set the engine compartment cover to the service access position.

3.
Disconnect the battery ground cable.
Re

move the battery cover.
4. Remove the engine front cover.For additional information, refer to: Engine
Front Cover (303-01 Engi
ne, In-vehicle Repair).
5. Remove the Inlet Manifold. Refer to Operation 30.15.01 in this Section. This operation includes depressurising the fuel system and removing the throttle
housing.
6. Disconnect the hoses and multi-plug from the coolant outlet pipe.
1. Release and reposition the hose clip, and disconnect the heater hose.
2. Disconnect the multi-plug from the temperature sensor.
3. Release and reposition the hose clip along the bypass hose.

7.
Remove the coolant outlet pipe.
1. Remove the four bolts which secure the outlet pipe.
2. Remove the outlet pipe from the bypass hose and from the cylinder heads.
8. Remove and discard the sealing ring s from the outlet pipe grooves.

9.
Remove the nuts which secure the catalytic converter to the A-Bank
exhaust manifold flange.

10 . Re
move the VVT bush carrier.
1. Remove the three bolts which secure the carrier to the cylinder block.
2. Release the carrier from the two ring dowels and remove it.

11. R
emove the seals from the bush carrier.
1. Remove the sealing ring (scarf jointed) from the carrier bush groove.
2. Remove the O-ring from the carrier oil-way recess.
12. Raise the vehicle on a ramp.
13. Remove the crankshaft position sensor.

1.
Remove the two bolts which secure the chain tensioner to the
cylinder head.
2. Remove the tensioner.

29
.
Remove the chain guide.
1. Remove the bolt which secures the chain guide.
2. Note the orientation of the chain guide and remove it from the upper retaining pin.

30
.
Remove the camshafts.
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 camshafts from the engine.

31
.
Remove the tappets and shims.
1. Note the position of each tappet, for reassembly, and remove each
tappet and shim assembly - retain each shim with its original
tappet.
Mark
the inside face of each tappet in pencil or felt tipped pen, with its
original position within the cylinder head.

32
.
Remove residual coolant from the cylinder head.
1. Place a drain tray under the engine.
2. Use a syringe with a length of thin rubber pipe connected, to drain the residual coolant from the outlet pipe water-way.
A s
uitable syringe is Snap On YA 745.
33. Remove the cylinder head.
1. Place cloth around the area of th e cylinder head to absorb coolant
spillage, when removing the head.
2. Remove the bolts (10xM10 and 2xM8) which secure the cylinder

Installation

hea
d.
3. With assistance, remove the cylinder head.

34 . R
emove the cylinder head gasket.
1. Note how the gasket is installed and remove it.
2. Remove and discard the cloth, placed previously to absorb coolant spillage.
Wipe up any l e
aked coolant.
35. Remove the coolant drain tray from under the engine.
36. Remove and discard the gasket from the downpipe catalyst.
Cle
an the gasket faces of the catalyst and the exhaust manifold.
37. Clean cylinder head and cylinder block gasket faces.
Ensu
re that all threaded holes in the cylinder block face are clean and
free from oil.
Cl ean and
inspect the cylinder head bolts. They may be re-used on two
occasions. When re- used, each bolt head should be marked with one
dot from an automatic centre punch.
38. Clean and inspect all relevant components and mating faces.
1. CAUTIONS: If a replacement cylinder head is to be installed to a vehicle with VCT
the cylinder head must have the oil gallery blind rivet removed before
installation.
Make sure that all debris is removed from the cylinder head and cylinder
head oil gallery.
Vehicles fitted with VCT: Remove the blind rivet from the VCT oil gallary. • NOTE: The centre bore of the blind rivet is 6 mm diameter.