XJ (X350) V8-4.2L (2005)
4. CAUTION: Make sure the timing chain slack is on the tensioned side of the timing chain.
Install the primary timing chain.
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Install the primary chain over the crankshaft sprocket and the intake sprocket.
5. Install the primary timing chain tensioner guide.
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Tighten to 12 Nm.
6. 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.
7. 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.
8. 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.
9. Install the primary timing chain tensioner assembly.