1998 JAGUAR X308 engine oil

Engine - Crankshaft
Rear Seal4.0L
NA V8 - AJ27/3.2 L NA V8 - AJ26
In-v
ehicle Repair
Remov

al
S
pecial Tool(s)
Crankshaft Rear Oi

l Seal Remover /
Replacer.
303 - 538
1. Open the engine compartment and fit paint protection sheets.

2. Di
sconnect the batt
ery ground cable.
R
emove the battery cover.
3. Remove the transmission. Refer to Operation 44.20. 01 in
Section 307-01A.
4. Remove the drive plate. Refer to Operation 12.53.13.

5. F
it and align the seal removal tool 303 - 538 to the crankshaft.
1. Unscrew the two nuts towards the head of each bolt to allow the bolts to fit fully into the crankshaft.
2. Unscrew the center bolt until it is below the face of the main tool and position the tool to the rear of the
crankshaft.
3. Lightly tighten the two bolts so that they fully locate in the crankshaft.

6. Hold the tool against th
e cran
kshaft and lightly and evenly
tighten the two nuts to the face of the tool; to secure the tool
and to hold it parallel to the face of the crankshaft.
7. Secure the oil seal to the tool using the three self-tapping

Engine - Crankshaft Rear Seal4.0L SC V8 - AJ26
In-vehic
le Repair
Remov
a
l
S
p
ecial Tool(s)
Crankshaft Rear Oi
l Seal R
emover /
Replacer.
303 - 538
1. Open the engine compartment and fit paint protection sheets.

2. Disc
onnect the batt
ery ground cable.
Re
move the battery cover.
3. Remove the transmission. Refer to Operation 44.20. 01 in
Section 307-01B.
4. Remove the drive plat e. Refer to Operation (SC) 12.53.13.

5. Fi
t and align the seal removal tool 303 - 538 to the crankshaft.
1. Unscrew the two nuts towards the head of each bolt to allow the bolts to fit fully into the crankshaft.
2. Unscrew the center bolt until it is below the face of the main tool and position the tool to the rear of the
crankshaft.
3. Lightly tighten the two scre ws so that they fully locate
in the crankshaft.

6. Hold the tool against th e cr
an
kshaft and lightly and evenly
tighten the two nuts to the face of the tool; to secure the tool
and to hold it parallel to the face of the crankshaft.
7. Secure the oil seal to the tool using the three self-tapping

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.

15
.
Connect the plug to the engine position sensor, at the rear of the cylinder
head.

16
.
Install the tappet and shim assemblies.
Lu
bricate each tappet assembly.
1. Install each tappet and shim asse mbly to its previously identified
position in the cylinder head.

17
.
Apply oil (EP-90) to the camshaft and bearing surfaces, as follows:
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.
18. Install the camshafts.
1. Install the camshafts to position in the cylinder head, with the timing flats uppermost.

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.

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.

I
dentify the VCT oil supply gallery and the 8 mm blind rivet.
U

sing a suitable 3 mm punch release the centre of the blind rivet until
it is released from the outer part of the blind rivet.
U
sing a suitable extraction tool, remo
ve the remaining part of the blind
rivet.
2. Clean the component mating faces.

3.
Check cylinder head face for distortio
n, across the center and from corner
to corner.
4. For cylinder head face distortion data, refer to specifications.For additional
information, refer to: Specifications
(303
-00 Engine System - General
Information, Specifications).

5.

NOTE: For
cylinder head with
distortion above the
maximum allowance,
the cylinder head
material must be
measured.
Measure the
cylinder head
material.
Che
ck
measurement
from the
centre of the
exhaust
dowel to the
cylinder head
face as
shown.
If the

measurement
is less than
51.88 mm
the cylinder
head requires
replacement.

6.
Install a new gasket to the downpipe catalyst flange.
7. Install and align a new cylinder head gasket to the cylinder block face.