Jaguar XJ (X350). Manual — part 705

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 caps to any open

orifices or lines.

Disconnect the battery ground cable.

For additional information, refer to Battery Disconnect and Connect

2 . Remove the secondary bulkhead center panel.

For additional information, refer to Secondary Bulkhead Center Panel

3 . NOTE:

Left-hand shown, right-hand similar.

Remove the injector sound proofing.

4 . NOTE:

Left-hand shown, right-hand similar.

Detach the injector harness from the fuel rail.

5 . Clean around the high-pressure fuel supply line and surrounding areas.

For additional information, refer to Fuel Injection Component Cleaning

6 . NOTE:

Left-hand shown, right-hand similar.

Remove the high pressure fuel supply line clamp retaining bolt.

7

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CAUTION: Make sure that the high-pressure fuel supply line remains in contact with

the fuel rail and fuel injection diverter rail until both unions have been detached and

cleaned. Failure to follow this instruction may result in foreign matter ingress to the fuel

injection system.

CAUTION: Make sure the tool used to loosen the high-pressure fuel supply line

unions is used at the top of the unions as this is where there is most material. Failure to

follow this instruction may result in damage to the unions.

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NOTE:

Left-hand shown, right-hand similar.

Loosen the high pressure fuel supply line.

8

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Using the pneumatic vacuum gun, vacuum foreign material from the high-pressure fuel supply

line, the fuel injection diverter rail and the fuel rail.

For additional information, refer to Fuel Injection Component Cleaning

9

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NOTE:

Left-hand shown, right-hand similar.

Remove and discard the high pressure fuel supply line.

Install suitable blanking caps to the open threaded ports on the fuel

injection diverter rail and fuel rail.

10

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CAUTION: Make sure that the high-pressure fuel supply lines remain in contact

with both the fuel injectors and the fuel rail until all unions have been detached and

cleaned. Failure to follow this instruction may result in foreign matter ingress to the fuel

injection system.

CAUTION: Do not use any aggressive cleaning fluid or a wire brush to clean the

fluid injector nozzle.

Using the pneumatic vacuum gun, vacuum foreign material from the high-pressure fuel

supply lines, the fuel injectors and the fuel injection supply manifold.

For additional information, refer to Fuel Injection Component Cleaning

11

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CAUTION: Make sure that the high-pressure fuel supply lines remain in contact

with both the fuel injectors and the fuel rail until all unions have been detached and

cleaned. Failure to follow this instruction may result in foreign matter ingress to the fuel

injection system.

CAUTION: Make sure that the fuel injector adaptor unions do not move when

loosening the high-pressure fuel supply lines. Failure to follow this instruction may result

in damage to the fuel injectors or the fuel injector adaptor unions.

NOTE:

Left-hand shown, Right hand similar.

Loosen the high-pressure fuel supply lines from the fuel injectors and fuel rail.

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