Jaguar XJ (X350). Manual — part 459

17

.

NOTE:

The timing chain tensioner piston should retract with minimal force. If binding occurs,

reposition the timing chain tensioner to eliminate side loading.

Slowly compress the right-hand timing chain tensioner.

18

.

NOTE:

The retaining tool must remain in the timing chain tensioner until the timing chain

tensioner is installed to the engine with the piston bottomed in the bore.

Using a suitable tool, retain the right-hand timing chain tensioner piston.

19 . Install the primary timing chain tensioner assembly.

Tighten to 12 Nm.

20 . Release the tension in the right-hand timing chain tensioner.

Remove the retaining tool.

21

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CAUTION: While applying the opposing force to sprocket and chain, tighten the

sprocket bolt.

Using the special tool, apply force to the tool in an anti-clockwise direction to tension the

primary timing chain on its drive side.

Tighten to 120 Nm.

22

.

CAUTION: While applying the opposing force to sprocket and chain, tighten the

sprocket bolt.

Using the special tool, apply force to the tool in an anti-clockwise direction.

Tighten to 120 Nm.

23 . Remove the special tool to the right-hand cylinder head.

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24 . Remove the special tool to the left-hand cylinder head.

25 . Install the left-hand variable camshaft timing oil control unit housing.

Install new O-ring seals.

Tighten to 22 Nm.

26 . Install the right-hand variable camshaft timing oil control unit housing.

Install new O-ring seals.

Tighten to 22 Nm.

27

.

Install the engine front cover.

For additional information, refer to Engine Front Cover - VIN Range: G45704->G99999

(12.65.01)

28 . Remove the special tool.

29 . Install the CKP sensor.

Tighten to 10 Nm.

30 . Connect the CKP sensor electrical connector.

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