Removal And Installation: Left: Removal
multimedia:A supplement to the article is available.
NOTE:
The magnetic timing wheels must not come in contact with magnets (pickup tools, trays, ect.) or any other strong magnetic field. This will destroy the timing wheels ability to correctly relay camshaft position to the camshaft position sensor.
- Remove the left cylinder head cover. Refer to COVER(S), CYLINDER HEAD, REMOVAL AND INSTALLATION .
- Remove the right side spark plugs. Refer to SPARK PLUG, REMOVAL AND INSTALLATION
.CAUTION:
When aligning timing marks, always rotate engine by turning the crankshaft. Failure to do so will result in valve or piston damage.
- Mount the Dial Indicator Set (special tool #C-3339A, Set, Dial Indicator) (1) to a stationary point on the engine, such as the number three cylinder ignition coil mount. Position the indicator probe into the number one cylinder, rotate the crankshaft clockwise (as viewed from the front) to place the number one cylinder piston at top-dead-center on the exhaust stroke and set the indicator dial to zero.
- The left side cam phaser SCRIBE LINES
(1) should face away from each other and the ARROWS
(2) should point toward each other and be parallel to the cylinder head cover mounting surface (3) when the number one cylinder piston is positioned at top-dead-center on the exhaust stroke.NOTE:
The cam phaser timing markings (1 and 3) could align with either an external or internal chain link. Either alignment is acceptable as long as there are twelve chain pins (2) between the markings.
- There should be twelve chain pins (2) BETWEEN
the exhaust cam phaser mark (3) and the intake cam phaser mark (1) as viewed from either the front or rear of the cam phasers.
- Mark both sides of the cam chain (1) at the phaser timing marks (2) using a paint pen or equivalent to aid in reassembly.
- The camshafts should be at top-dead-center, with the alignment holes (1) positioned vertically.NOTE:
It may be necessary to rock the camshaft slightly (a few degrees) with a wrench (2) when installing the camshaft holder.
- Install the (special tool #2025200090, Holder, Camshaft) (1).
- Install the (special tool #2025101090, Holder, Camshaft Phaser - Left-Front Cyl Head) (2) against the cylinder head cover mounting surface between the intake and exhaust phasers (1), with the tool number facing up.
- Loosen, but do not remove, the exhaust oil control valve (1).
- Loosen, but do not remove, the intake oil control valve (1).
- Remove the (special tool #2025101090, Holder, Camshaft Phaser - Left-Front Cyl Head), leaving the Camshaft Holder in place.
- Using the (special tool #2025003090, Pin, Chain Tensioner), lift the pawl off of the rack (1).
- While holding the pawl off of the rack (2), push the (special tool #2025001090, Holder, Timing Chain Tensioner, Left-Front) (1) into place between the cylinder head and the cam chain guide to force the rack and piston back into the tensioner body. The holder remains in place while the phasers are removed. Refer to VALVE TIMING, STANDARD PROCEDURE .
- Remove the oil control valve and pull the left side exhaust cam phaser off of the camshaft (1) while supporting the timing chain (2).
- Remove the oil control valve and pull the left side intake cam phaser off of the camshaft (2) while supporting the timing chain (1).
