Jaguar XJ (X350). Manual — part 503

•

Tighten to 20 Nm + 90 deg.

61

.

CAUTION: Do not tighten the camshaft sprocket retaining bolts.

CAUTION: Make sure the secondary timing chain and camshaft sprockets are free

to rotate.

Install the camshaft sprockets.

•

Install the secondary timing chain tensioner and secondary timing chain to the

camshaft sprockets.

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

63 . Install the secondary timing chain tensioner retaining bolts.

•

Tighten to 12 Nm.

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

•

Remove the retaining tool.

65

.

Install the timing chain tensioning tool 303-532 to the exhaust camshaft sprocket.

•

Reposition the camshaft sprockets for the most advantageous position for use of the

tool.

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66 . Install the primary timing chain guide.

•

Tighten to 12 Nm.

67

.

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

chain.

Install the primary timing chain.

•

Install the primary chain over the crankshaft sprocket and the intake sprocket.

68 . Install the primary timing chain tensioner guide.

•

Tighten to 12 Nm.

69

.

CAUTION: During timing chain tensioner compression, do not release the ratchet

stem until the timing chain tensioner piston is fully bottomed in its bore or damage to the

ratchet stem will result.

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

away from the ratchet stem.

70

.

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.

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