Jaguar XJ (X350). Manual — part 537

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: 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.

CAUTION: Make sure that the colored links on the secondary timing chain align with

the dots and scribed line on the sprocket shoulder. Failure to follow this instruction may

result in damage to the engine.

Install the camshafts.

Install the secondary timing chain onto the camshafts.

2 . Install the secondary timing chain tensioner assembly.

3

.

CAUTION: Make sure that the dots on the camshafts are aligned at the 12 o'clock

position. Failure to follow this instruction may result in damage to the engine.

NOTE:

Lubricate the camshafts and the camshaft bearing caps with oil meeting Jaguar

specification prior to installation.

Install the camshafts.

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4 . Install the secondary timing chain tensioner retaining bolts.

Tighten to 10 Nm.

5

.

Apply Loctite 518 sealant to the exhaust camshaft seal bearing caps.

Apply Loctite 518 sealant, 2 mm wide, to the left-hand rear and right-hand

front camshaft bearing caps.

Apply Loctite 518 sealant, 7 mm in diameter, to the left-hand front and

right-hand rear camshaft bearing caps.

6 . NOTE:

Install the camshaft bearing cap retaining bolts evenly.

Install the camshaft bearing caps in their original position.

Tighten the retaining bolts in the sequence shown.

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