Jaguar XJ (X350). Service manual — part 582
27 . Remove the valve cover.
Remove and discard the valve cover gasket.
Installation
WARNING: Wait at least 30 seconds after the engine stops before commencing any repair to
the high-pressure fuel injection system. Failure to follow this instruction may result in personal
injury.
WARNING: Do not smoke or carry lighted tobacco or open flame of any type when working
on or near any fuel related components. Highly flammable mixtures are always present and may
ignite. Failure to follow these instructions may result in personal injury.
WARNING: This procedure involves fuel handling. Be prepared for fuel spillage at all times
and always observe fuel handling precautions. Failure to follow this instruction may result in
personal injury.
WARNING: Do not carry out any repairs to the fuel injection system with the engine
running. The fuel pressure within the system can be as high as 1650 bar. Failure to follow this
instruction may result in personal injury.
CAUTION: Make sure the workshop area in which the vehicle is being worked on is as clean
and as dust free as possible. Foreign matter from work on clutches, brakes or from machining or
welding operations can contaminate the fuel system and may result in later malfunction.
CAUTION: Do not disconnect the fuel injector electrical connectors with the engine running.
Failure to follow this instruction may result in damage to the vehicle.
CAUTION: Always carry out the cleaning process before carrying out any repairs to the fuel
injection system components. Failure to follow this instruction may result in foreign matter ingress
to the fuel injection system.
CAUTION: Diesel fuel injection equipment is manufactured to very precise tolerances and
fine clearances. It is therefore essential that absolute cleanliness is observed when working with
these components. Always install blanking plugs to any exposed ports.
1 . Install the valve cover.
Install a new valve cover gasket.
Tighten to 10 Nm.
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2 . Install the engine cover locating studs.
3 . Attach the EGR coolant rail.
4 . Attach the diesel particulate filter high and low-pressure pipes.
Tighten to 10 Nm.
5 . Install the fuel rail securing bracket.
Tighten to 24 Nm.
6 . Install the fuel rail.
Tighten to 24 Nm.
7
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Install a new high-pressure fuel supply line.
Tighten the high-pressure fuel supply line in the sequence shown:
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