XJ (X350) V8-4.2L SC (2004)
16. 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.
17. 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 right-hand timing chain tensioner piston.
18. Install the primary timing chain tensioner assembly.
^
Tighten to 12 Nm.
19. Release the tension in the right-hand timing chain tensioner.
^
Remove the retaining tool.
20. CAUTION: While applying the opposing force to sprocket and chain, tighten the sprocket bolt.
Using the special tool apply force to the tool in an anti-clockwise direction to tension the primary timing chain on its drive side.
^
Tighten to 120 Nm.
21. CAUTION: While applying the opposing force to sprocket and chain, tighten the sprocket bolt.
Using the special tool apply force to the tool in an anti-clockwise direction.