Jaguar XJ (X350). Service manual - part 464

3 . Install the secondary timing chain tensioner retaining bolts.

Tighten to 12 Nm.

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

Remove the retaining tool.

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.

6 . Install the primary timing chain tensioner guide.

Tighten to 12 Nm.

7 . Install the crankshaft sprocket.

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.

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9 . Install the primary timing chain tensioner guide.

Tighten to 12 Nm.

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 left-hand timing chain tensioner ratchet lock mechanism away

from the ratchet stem.

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.

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.

13 . Install the primary timing chain tensioner assembly.

Tighten to 12 Nm.

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

Remove the retaining tool.

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