Left

LEFT

Special Tools:











CAUTION:
The magnetic timing wheels (1) must not come in contact with magnets (pickup tools, trays, etc.) or any other strong magnetic field. This will destroy the timing wheels ability to correctly relay camshaft position to the camshaft position sensor.

CAUTION:
When the timing chain is removed and the cylinder heads are still installed, Do not forcefully rotate the camshafts or crankshaft independently of each other. Severe valve and/or piston damage can occur.

CAUTION:
DO NOT STAMP OR STRIKE THE CAMSHAFT BEARING CAPS. SEVERE DAMAGE WILL OCCUR TO THE BEARING CAPS.

1. Remove the upper intake manifold, all ignition coils, all spark plugs and left cylinder head cover .





2. The left side cam phaser SCRIBE LINES (3) should face away from each other and the ARROWS (1) should point toward each other and be parallel to the cylinder head cover mounting surface (2). The number one cylinder piston is positioned at top-dead-center on the exhaust stroke.

3. Mark the camshaft phasers to the timing chain with a paint pen or equivalent.

NOTE:
Graphic shows engine timing cover removed for clarity.





4. Using the (10200-3) (2), lift the pawl off of the rack (3). While holding the pawl off of the rack, push (10200-1) (1) into place between the cylinder head and the cam chain guide to force the rack and piston back into the tensioner body.

NOTE:
The holder remains in place while the phasers are removed.

NOTE:
Minor rotation of a camshaft (a few degrees) may be required when installing the LH Camshaft/Phaser Lock.





5. Install the (10202) (4).

6. Remove the exhaust oil control valve (2) and the intake oil control valve (6).





NOTE:
The alignment marks located on the camshaft specifies the location of the drive pin in reference to the phaser alignment mark.

7. Using care. Remove both the intake and exhaust oil control valves simultaneously.

NOTE:
DO NOT REMOVE THE PHASER LOCK.

NOTE:
Camshaft bearing caps should have been marked during engine manufacturing. For example, the number one exhaust camshaft bearing cap is marked "1E->". The caps should be installed with the notch forward.





8. Rotate the camshafts counterclockwise to position the alignment holes (1) approximately 30° before top-dead-center. This places the camshafts in the neutral position (no valve load).

9. Loosen the camshaft bearing cap bolts in the sequence shown.

NOTE:
When the camshaft is removed the rocker arms may slide downward, mark the rocker arms before removing the camshaft.

10. Remove the camshaft bearing caps and the camshafts.