Tools Required

1. Remove the left camshaft cover. Refer to Camshaft Cover Replacement - Left Side .
2. Remove the engine oil pump. Refer to Oil Pump Replacement .



3. Align the primary timing marks (1) using the J 39946 .



4. Install the EN 46328  (1) on the left bank camshafts (2).



5. Create two reference marks (1) using a paint stick to identify the chain link adjacent to each actuator timing mark (2, 3).



6. Remove the 2 bolts attaching the left secondary camshaft drive chain tensioner to the engine block.
7. Remove the left secondary camshaft drive chain tensioner, allowing the tensioner to expand as you remove it.
8. Clean and inspect the camshaft timing drive components. Refer to Camshaft Timing Drive Components Cleaning and Inspection .

1. Collapse the left secondary camshaft chain tensioner using the following procedure:

1.1.	Rotate the ratchet release lever (2) counterclockwise and hold.

1.2.	Collapse the tensioner shoe (1) and hold.

1.3.	Release the ratchet lever (2).

2. Slowly release the pressure on the shoe (1), until the ratchet lever (2) moves to the first detent and a "click" is heard and felt.
3. Collapse the tensioner shoe (1) and hold.



4. Insert a pin through the hole in the release lever in order to lock the tensioner shoe in the collapsed position.

Notice: Refer to Fastener Notice in the Preface section.





Important: Ensure the tensioner release lever is facing outward.

5. Install the left secondary camshaft drive chain tensioner and retaining bolts.

Tighten
Tighten the secondary camshaft drive chain tensioner bolts to 25 N·m (18 lb ft).

6. Remove the pin holding the tensioner to tighten any slack in the timing chain.



7. Inspect the two paint marks created previously to ensure they remain aligned with the timing marks (1, 2) on the actuator.
8. Install the engine oil pump. Refer to Oil Pump Replacement .



9. Remove the EN 46328 (1) .
10. Install the camshaft cover. Refer to Camshaft Cover Replacement - Left Side .