Jaguar XJ (X350). Manual — part 348

21

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CAUTION: Make sure the crankshaft keyway is at the 9 O'clock position before any

further engine repairs are carried out.

Remove the crankshaft pulley retaining bolt and washer.

22 . Remove the crankshaft sprocket.

Installation

1 . NOTE:

Make sure the crankshaft sprocket timing marks are facing outwards.

Install the crankshaft sprocket.

2

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CAUTION: Make sure the crankshaft keyway is at the 9 O'clock position before the

camshaft positions are aligned.

Install the crankshaft pulley retaining bolt and washer.

3

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Rotate the left-hand intake camshaft clockwise until the camshaft sprocket alignment mark is

at the 9 O'clock position and rotate the left-hand exhaust camshaft sprocket clockwise until

the camshaft sprocket alignment mark is at the 2 O'clock position.

4

.

Rotate the right-hand intake camshaft clockwise until the camshaft sprocket alignment mark is

at the 5 O'clock position and rotate the right-hand exhaust camshaft sprocket clockwise until

the camshaft sprocket alignment mark is at the 12 O'clock position.

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5 . Rotate the crankshaft clockwise until the keyway is at the 11 O'clock position.

6 .

CAUTION: Inspect and replace the O-ring seal if necessary.

CAUTION: Make sure the O-ring seal is correctly installed.

Install the left-hand timing chain outer guide.

Tighten the retaining bolts in the sequence shown in two stages.

Stage 1: Tighten bolt 1 to 25 Nm.

Stage 2: Tighten bolts 2 to 25 Nm.

7

.

CAUTION: Make sure the crankshaft keyway is at the 11 O'clock position, the

alignment mark on the left-hand intake camshaft sprocket is at the 9 O'clock position and

the alignment mark on the left-hand exhaust camshaft sprocket is at the 2 O'clock position.

CAUTION: Make sure the timing chain alignment marks are correctly positioned to

the crankshaft sprocket and camshaft sprocket alignment marks.

CAUTION: Make sure the timing chain slack is on the tensioned side of the timing

chain.

Install the left-hand timing chain.

8 . Install the left-hand timing chain inner guide.

9 .

CAUTION: Do not manually adjust the timing chain tensioner.

Install the left-hand timing chain tensioner.

Tighten to 25 Nm.

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