Jaguar XJ (X350). Manual — part 360

ratchet stem will result.

Using a suitable tool, hold the left-hand timing chain tensioner ratchet lock mechanism away

from the ratchet stem.

40

.

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 left-hand timing chain tensioner.

41

.

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 left-hand timing chain tensioner piston.

42 . Install the left-hand timing chain tensioner.

•

Tighten to 25 Nm.

43 . Release the tension in the left-hand timing chain tensioner.

•

Remove the retaining tool.

44

.

Make sure the left-hand timing chain alignment marks have remained correctly positioned to

the camshaft sprocket and crankshaft sprocket alignment marks.

45

.

CAUTION: Do not rotate the crankshaft counterclockwise. The timing chains may

bind causing engine damage.

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Install the crankshaft pulley retaining bolt and washer.

46

.

CAUTION: Do not rotate the crankshaft counterclockwise. The timing chains may

bind causing engine damage.

Rotate the crankshaft clockwise until the crankshaft keyway is at the 3 O'clock position.

47

.

CAUTION: Do not rotate the crankshaft counterclockwise. The timing chains may

bind causing engine damage.

Remove the crankshaft pulley retaining bolt and washer.

48 . Install the crankshaft outer sprocket.

49 . Install the right-hand timing chain inner 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.

50

.

CAUTION: Make sure the crankshaft keyway is at the 3 O'clock position, the

alignment mark on the right-hand intake camshaft sprocket is at the 5 O'clock position

and the alignment mark on the right-hand exhaust camshaft sprocket is at the 12 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 right-hand timing chain.

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