Special Tools

Note: After removing the upper intake manifold, and spark plugs, plug any openings to prevent dirt and other contaminants from entering.

1. Remove the engine front cover assembly. Refer to Engine Front Cover Replacement
2. Remove the spark plugs to aid crankshaft or engine rotation. Refer to Spark Plug Replacement
3. Install EN-46111 socket  (1) onto the crankshaft (2).



4. Using EN-46111 socket  (1), rotate the crankshaft in a clockwise direction until the crankshaft sprocket timing mark (2) is aligned with the indexing mark (3) on the oil pump housing.



5. After aligning the crankshaft sprocket timing mark, check that the camshaft flats (1) at the rear of the bank 1 cylinder head are parallel with the cylinder head cover rail (2).
6. If the camshaft flats are not as shown, rotate the crankshaft 360 degrees.



7. Install EN-46105-1 (1) onto the rear of the bank 1 cylinder head camshafts (2).



8. Install EN-46105-2 (1) onto the rear of the bank 2 cylinder head camshafts (2).




Note: Take care when removing the tensioner bolts. The tensioner plunger is subjected to spring tension and may spring apart during tensioner removal.

9. Remove the bank 1 secondary timing chain tensioner bolts (1) and remove the tensioner (2).



10. Remove the tensioner gasket (1) from the tensioner (2) and discard the gasket.
11. Inspect the tensioner mounting surface on the bank 1 cylinder head for burrs or any defects that would affect the sealing of a new tensioner gasket.



12. Remove the bank 1 secondary timing chain shoe bolt (1).



13. Remove the bank 1 secondary timing chain shoe (1).



14. Remove the two bank 1 secondary timing chain guide bolts (1) and remove the guide (2).



15. Remove the bank 1 secondary timing chain (1) from the camshaft position actuators (2) and the camshaft intermediate driveshaft sprocket (3).

1. Clean all the following components with a suitable solvent:

•	Crankshaft sprocket

•	Primary timing chain

•	Primary timing chain guide

•	Primary timing chain tensioner

•	Secondary timing chains

•	Secondary timing chain shoes

•	Secondary timing chain guides

•	Secondary timing chain tensioners

•

Bolts

2. Dry all the components with compressed air.

1. Inspect the primary and/or secondary timing chains for the following:

•	Binding or worn rollers (1)

•	Loose links (2)

•	Loose pins (3)

2. Replace a damaged timing chain as required.

Inspect the camshaft intermediate driveshaft sprockets for the following:

1. Inspect the crankshaft sprocket for the following:

•	Sprocket damage (1)

•	Bore damage (2)

•	Keyway damage (3)

•	Damage to the cushion material (4)

2. Replace a damaged sprocket as required.

1. Inspect the primary timing chain lower guide for the following:

•	Worn guide surface (1)

•	Cracked or broken guide surface (2)

•	Cracked or damaged guide base (3)

2. Replace a damaged guide as required.

1. Inspect the primary timing chain lower guide for the following:

•	Worn guide surface (1)

•	Cracked or broken guide surface (2)

•	Cracked or damaged guide base (3)

Note: The primary timing chain lower guide is not serviced separately and is part of the oil pump assembly.

2. Replace the primary timing chain lower guide by replacing the oil pump assembly, if necessary. Refer to Oil Pump Replacement

1. Inspect the primary timing chain tensioner for worn shoe surface (1).
2. Inspect the tensioner for a locked or binding tensioner shaft (2). Reset the plunger (3) and ensure the tensioner shaft moves freely in and out of the body of the tensioner

Note: To reset the tensioner, use a suitably sized flat-bladed screwdriver (4) to wind the plunger in a clockwise direction, into the tensioner shaft.

3. Replace a damaged tensioner as required.

1. Inspect the bank 2 secondary timing chain guide for the following:

•	Worn guide surface (1)

•	Cracked or broken guide surface (2)

•	Cracked or damaged guide  (3)

2. Replace a damaged guide as required. Reset the plunger (3) and ensure the tensioner shaft moves freely in and out of the body of the tensioner.

1. Inspect the front of the bank 2 secondary timing chain shoe for the following:

•	Worn shoe surface (1)

•	Cracked or broken shoe surface (2)

•	Cracked or damaged shoe (3)




2. Inspect the back of the shoe for a damaged, worn or missing timing chain tensioner contact pad (1).
3. Replace a damaged shoe as required.

1. Inspect the bank 2 secondary timing chain tensioner for damaged plunger-to-shoe contact surface (1).
2. Inspect the tensioner for locked or binding tensioner shaft (2). Reset the plunger (3) and ensure the tensioner shaft moves freely in and out of the body of the tensioner.

Note: To reset the tensioner, use a suitably sized flat-bladed screwdriver (4) to wind the plunger in a clockwise direction, into the tensioner shaft.

3. Replace a damaged tensioner as required.

1. Inspect the bank 1 secondary timing chain guide for the following:

•	Worn guide surface (1)

•	Cracked or broken guide surface (2)

•	Cracked or damaged guide base (3)

2. Replace a damaged guide as required.

1. Inspect the front of the bank 1 secondary timing chain shoe for the following:

•	Worn shoe surface (1)

•	Cracked or broken shoe surface (2)

•	Cracked or damaged shoe (3)




2. Inspect the back of the shoe for a damaged, worn or missing timing chain tensioner contact pad (1).
3. Replace a damaged shoe as required.

1. Inspect the bank 1 secondary timing chain tensioner for damaged plunger-to-shoe contact surface  (1).

Note: To reset the tensioner, use a suitably sized flat-bladed screwdriver (4) to wind the plunger in a clockwise direction, into the tensioner shaft.

2. Inspect the tensioner for a locked or binding tensioner shaft (2). Reset the plunger (3) and ensure the tensioner shaft moves freely in and out of the body of the tensioner.
3. Replace a damaged tensioner as required.

1. Install the primary timing chain components.
2. Using EN-46111 socket  (1), rotate the crankshaft in a clockwise direction until the crankshaft sprocket timing mark (2) is aligned with the indexing mark (3) on the oil pump housing.



3. In order to install EN-46105 tool EN 46105



4. Install EN-46105-1 (1) onto the rear of the bank 1 cylinder head camshafts (2).



5. Install EN-46105-2 (1) onto the rear of the bank 2 cylinder head camshafts (2).



6. Install the bank 1 secondary timing chain (1) onto the camshaft actuators (2) and the right hand camshaft intermediate driveshaft sprocket (3) aligning the chain.



7. Place the secondary timing chain around the bank 1 camshaft intermediate driveshaft outer sprocket, aligning the bright plated timing chain link (1) with the alignment access hole (2) in the inner sprocket.



8. Wrap the secondary timing chain around both bank 1 actuator drive sprockets.




Note: Ensure that when aligning the bank 1 secondary timing chain to the bank 1 camshaft actuator sprockets, that the triangular timing marks (1) on the sprocket are used, NOT the circular mark.

9. Align the bright plated timing chain link (2) with the exhaust actuator sprocket alignment triangle mark.



10. Align the bright plated timing chain link (1) with the intake actuator sprocket alignment triangle mark (2).




Note: Ensure that the bank 1 secondary timing chain guide is used when installing to the Bank 1 side in this procedure.

11. Ensure that the bank 1 secondary timing chain guide is selected and orientated correctly.



12. Position the chain guide (2).

Caution: Refer to Fastener Caution in the Preface section.

13. Ensure the primary timing chain upper guide is selected and orientated correctly. Tighten the secondary timing chain guide bolts (1) to 23 N·m (17 lb ft)




Note: The bank 1 secondary camshaft drive shoe is marked with the letters ’RH’. Ensure that the bank 1 drive shoe is used when installing to the bank 1 side in this procedure and that the letters ’RH" are facing the front of the vehicle when installed.

14. Ensure the bank 1 secondary timing chain shoe is selected and orientated correctly.
15. Position the bank 1 secondary timing chain shoe. Tighten the bank 1 secondary timing chain shoe attaching bolt to 23 N·m (17 lb ft).



16. Ensure the bank 1 secondary timing chain tensioner is selected and orientated correctly.




Note: To reset the tensioner, use a suitably sized flat-bladed screwdriver (1) to wind the plunger in a clockwise direction, into the tensioner shaft (2).

17. Reset the bank 1 secondary timing chain tensioner.



18. Install the tensioner shaft (1) into the bank 1 secondary timing chain tensioner body (2).




Note: If EN-46112 pins  (1) is not inserted into the tensioner body (2), the plunger will remain in the locked position and no tension will be placed on the timing chain, this will cause damage to the engine.

19. Compress the tensioner shaft into the body and lock the tensioner by inserting EN-46112 pins into the access hole in the side of the tensioner body.
20. Slowly release pressure on the bank 1 secondary timing chain tensioner. The tensioner should remain compressed.



21. Install a new bank 1 secondary timing chain tensioner gasket (1) to the tensioner (2).
22. Install the bank 1 secondary timing chain tensioner bolts (3) through the tensioner and gasket.
23. Ensure the bank 1 secondary timing chain tensioner mounting surface on the bank 1 cylinder head does not have any burrs or defects that would affect the sealing of the new tensioner gasket.



24. Place the bank 1 secondary timing chain tensioner (2) into position and loosely install the bolts (1) to the engine block.



25. Verify the proper placement of the bank 1 secondary timing chain tensioner gasket tab (1).
26. Install the bank 1 secondary timing chain tensioner bolts (2) and tighten to 23 N·m (17 lb ft).



27. Release the bank 1 timing chain tensioner (1) by pulling out EN-46112 pins EN 46112



28. Verify all primary and secondary timing chain timing mark alignments (1-18).
29. Remove EN-46105 tool and EN-46105-2 from both of the cylinder head camshafts.
30. Install the spark plugs. Refer to Spark Plug Replacement
31. Install the engine front cover assembly. Refer to Engine Front Cover Replacement