Jaguar XJ (X350). Manual — part 480
4 . Detach the engine wiring harness.
5 . Disconnect the positive crank ventilation (PCV) pipe.
6 . Disconnect the ignition coil on-plug electrical connectors.
7 . NOTE:
Left-hand shown, right-hand similar.
Remove the ignition coil-on-plugs.
8 . Remove the valve cover assembly.
Remove and discard valve cover gaskets.
9 . NOTE:
On removal of the valve cover retaining bolts note their positions in the valve cover.
Remove the valve cover retaining bolts.
Remove and discard the valve cover retaining bolt O-ring seals.
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Installation
All vehicles
1 . NOTE:
Install the valve cover retaining bolts to their positions previously noted.
Install the valve cover retaining bolts.
Install new valve cover retaining bolt O-ring seals.
2
.
Apply bead of silicone gasket sealant or equivalent meeting Jaguar specification on the two
places where the cylinder head and front cover join.
The application of sealant must be 3mm diameter by 12mm long. Install the
valve cover immediately after applying the sealant.
The cover should be fitted directly to the head without smearing the
sealant or the seals.
3 . Install the valve cover.
Install new valve cover gaskets.
Complete the tightening sequence.
Tighten to 10 Nm.
4 . NOTE:
Left-hand shown, right-hand similar.
Install the ignition coil-on-plugs.
Tighten to 5 Nm.
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