1998 JAGUAR X308 head bolt

Installation

1.
Use new manifold securing bolt s and.fit a spacer to each.

2. Fit each manifold and manifold gasket.
1. Fit and align the new gasket to the cylinder head.
2. Fit and align the manifo ld to the cylinder head.
3. Fit the rear four bolts wh ich secure the manifold, but
do not tighten.
3. Working from above the vehicle, fit and tighten the remaining
manifold securing bolts.
4. Working from below the vehicle, fu lly tighten the rear bolts on
each manifold.

5. Refit the steering rack.
1. reposition the steering rack.
2. Fit and tighten the rack mounting bolts on the driver's
side.
3. Tighten the rack mounting bolts on the passenger side.

6. From above the vehicle, connect the EGR pipe to the right
hand exhaust manifold.
1. Fit a new EGR gasket to the manifold.
2. Reposition the EGR pipe to the manifold.
3. Fit the two nuts which secure the EGR flange to the exhaust manifold.
7. Fit the downpipe catalytic converter, left hand side. Refer to
Section 309-00.
8. Fit the downpipe catalytic converter, right hand side. Refer to
Section 309-00.
9. Fit the front silencer. Refer to Section 309-00.
10. Fit the air cleaner assembly . Refer to Section 303-12.
11. Remove paintwork protection sheets and close the engine
compartment.

Engine - Intake 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 the Timing Cover. Re fer to Operation 12.65.01.
5. Remove the VVT Unit from the B-Bank. Refer to Operation
12.65.71. This also includes the VVT Bush Carrier Assembly,
Primary Chain and Tensioner.
6. Remove the camshaft locking tool 303 - 530 (fitted for
previous operation).

7. 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.
8. Clean and inspect all relevant components.

1. Apply oil (EP-90) to the camsha ft 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 (0 to 4 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 the VVT Unit to the A-Bank. Refer to Operation 12.65.71.
This also includes the VVT Bu sh Carrier Assembly, Primary
Chain and Tensioner.
5. With the camshaft (303 - 530) and crankshaft (303 - 531)
setting tools removed, after the previous operation, adjust the
valve clearances on the inlet camshaft. refer to Operation
12.29.48.
6. Refit the Timing Cover. Re fer to Operation 12.65.01.
7. Move the engine compartment co ver from the service position
and connect the gas struts.
8. Remove the paint protection sheets and close the cover.
9. Connect the battery and fit the battery cover.
Refer to the Battery Reconnection Procedure 86.15.15.

Engine - Intake 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 the Timing Cover. Re fer to Operation 12.65.01.
5. Remove the VVT Unit from the A-Bank. Refer to Operation
12.65.70. This also includes the VVT Bush Carrier Assembly,
Primary Chain and Tensioner.
6. Remove the camshaft locking tool 303 - 530 (fitted for
previous operation).

7. 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.
8. Clean and inspect all relevant components.

1. Apply oil (EP-90) to the camsha ft 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 (0 to 4 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 the VVT Unit to the A-Bank. Refer to Operation 12.65.70.
This also includes the VVT Bu sh Carrier Assembly, Primary
Chain and Tensioner.
5. With the camshaft (303 - 530) and crankshaft (303 - 531)
setting tools removed, after the previous operation, adjust the
valve clearances on the inlet camshaft. refer to Operation
12.29.48.
6. Refit the Timing Cover. Re fer to Operation 12.65.01.
7. Move the engine compartment co ver from the service position
and connect the gas struts.
8. Remove the paint protection sheets and close the cover.
9. Connect the battery and fit the battery cover.
Re
fer to the Battery Reconnection Procedure 86.15.15.

Installation
19.70.28.
15. Remove the supercharger outlet duct and gasket. Refer to
Operation 18.50.17.
16. Remove the coolant output pipe. Refer to Operation (SC)
26.31.08.
17. Remove the supercharger driv e belt. Refer to Operation
18.50.08.
18. Remove the supercharger as sembly. Refer to operation
18.50.15.
19. Remove the B-Bank intercooler. Refer to Operation 18.50.19.

20. Disconnect the fuel injector harness.
1. Disconnect the multi-plugs from the B-Bank injectors.

2. Loosen, do not remove, the nuts which secure the
harness to the camshaft cover.
3. Reposition the harness for access.

21. Remove the fuel rail.
1. Remove the three bolts whic h secure the fuel rail to
the intercooler adaptor.
2. Remove the fuel rail from the adaptor; still connected
to the fuel crossover pi pe and fuel feed pipe.

22. Remove the intercoole r adaptor assembly.
1. Remove and discard the seals from the fuel rail.
2. Remove the five bolts which secure the adaptor
assembly to the cylinder head.
3. Remove the adaptor assembly from the cylinder head.
Remove the gasket; adaptor assembly to cylinder head.
23. Clean and inspect all relevant mating faces.
1. Fit the intercooler adaptor assembly.
1. Fit a new gasket; adaptor assembly to cylinder head.
2. Align and fit the adaptor assembly to the cylinder head.

3. Fit the five bolts which secure the adaptor assembly to the cylinder head.
4. Fit new seals to the fuel rail.

2. Fit the fuel rail to the intercooler adaptor.
1. Align the fuel rail to the adaptor; still connected to the fuel crossover pipe and fuel feed pipe. Locate the
fuel rail into the adaptor.
2. Fit the three bolts which secure the fuel rail to the adaptor.

3. Connect the fuel injector harness.
1. Reposition the harness.
2. Tighten the nuts which secure the harness to the
camshaft cover.
3. Connect the multi-plugs to the B-Bank injectors.
4. Fit the B-Bank intercooler. Refer to Operation 18.50.19.
5. Fit the supercharger assembly. Refer to operation 18.50.15.
6. Fit the supercharger drive belt . Refer to Operation 18.50.08.
7. Fit the coolant output pipe. Refer to Operation (SC) 26.31.08.
8. Fit the throttle induction elbow. Refer to Operation 19.70.28.
9. Fit the throttle housing. Refer to Operation 19.70.04.
10. Fit the supercharger outlet duct and gasket. Refer to
Operation 18.50.17.
11. 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.

Installation
19.70.28.
15. Remove the supercharger outlet duct and gasket. Refer to
Operation 18.50.17.
16. Remove the coolant output pipe. Refer to Operation (SC)
26.31.08.
17. Remove the supercharger driv e belt. Refer to Operation
18.50.08.
18. Remove the supercharger as sembly. Refer to operation
18.50.15.
19. Remove the A-Bank intercooler. Refer to Operation 18.50.18.

20. Disconnect the fuel injector harness.
1. Disconnect the multi-plugs from the A-Bank injectors.

2. Loosen, do not remove, the nuts which secure the
harness to the camshaft cover.
3. Reposition the harness for access.

21. Remove the fuel rail.
1. Remove the three bolts whic h secure the fuel rail to
the intercooler adaptor.
2. Remove the fuel rail from the adaptor; still connected
to the fuel crossover pipe and fuel return pipe.

22. Remove the intercoole r adaptor assembl y.
1. Remove and discard the seals from the fuel rail.
2. Remove the five bolts which secure the adaptor
assembly to the cylinder head.
3. Remove the adaptor assembly from the cylinder head.
Remove the gasket; adaptor assembly to cylinder head.
23. Clean and inspect all relevant mating faces.
1. Fit the intercooler adaptor assembly.
1. Fit a new gasket; adaptor assembly to cylinder head.
2. Align and fit the adaptor assembly to the cylinder head.