Variable Valve Timing Camshaft Phasers, Right

Variable Valve Timing Camshaft Phasers, Right

Special tools, testers and auxiliary items required

• Dial indicator

• Timing Chain Holder (10200)

• Camshaft Phaser Lock (10202)

Removing








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.







- Remove the upper intake manifold and right cylinder head cover. Refer to => [ Right Cylinder Head Cover ] Right Cylinder Head Cover.

- Remove the LH ignition coils. Refer to => [ Ignition Coil ] Service and Repair.

- Remove the spark plugs. Refer to => [ Spark Plug ] Service and Repair.


When aligning timing marks, always rotate engine by turning the crankshaft. Failure to do so will result in valve and/or piston damage.

- Mount dial indicator (1) to a stationary point on the engine. Rotate the crankshaft CW to place the number one piston at TDC on the exhaust stroke.

- The right side cam phaser arrows (3) should point away from each other and the scribe lines (4) should be parallel to the valve cover sealing surface (6) when the number one piston is positioned at TDC on the exhaust stroke.






• Minor rotation of a camshaft (a few degrees) may be required when installing the camshaft phaser lock.

- Install the RH Camshaft phaser lock (10202) (5).

- Mark the cam chain at the phaser timing marks (1) using a paint pen or equivalent to aid in reassembly.

- Loosen the exhaust oil control valve (7) and the intake oil control valve (2).

- Remove the RH camshaft phaser lock (10202) (5).

- Reset the RH cam chain tensioner with the timing chain holder (10200) (1) by pushing the holder into place between the cylinder head and the cam chain guide to force the tensioner piston back into the tensioner body. The timing chain holder (10200) remains in place while the phasers are removed.






- Remove the oil control valve (2) and pull the right side exhaust cam phaser off of the camshaft.

- Remove the oil control valve (3) and pull the right side intake cam phaser off of the camshaft.

Installing








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.








Do not rotate the crankshaft more than a few degrees independently of the camshafts. Piston to valve contact could occur resulting in possible valve damage. If the crankshaft needs to be rotated more than a few degrees, first remove the camshafts. Refer to => [ Right Camshafts ] Right Camshafts.

- Verify that the number one piston is positioned at TDC on the exhaust stroke.


Do not rotate the camshafts more than a few degrees independently of the crankshaft. Valve to piston contact could occur resulting in possible valve damage. If the camshafts need to be rotated more than a few degrees, first move the pistons away from the cylinder heads by rotating the crankshaft counterclockwise to a position 30° BTDC. Once the camshafts are positioned at TDC rotate the crankshaft clockwise to return the crankshaft to TDC.

- Verify that the camshafts are set at TDC by positioning the alignment holes (1) vertically.






- Reset the RH cam chain tensioner with the timing chain holder (10200) (1) by pushing the holder into place between the cylinder head and the cam chain guide to force the piston back into the tensioner body. The timing chain holder (10200) remains in place while the phasers are removed.






- Route the cam chain around the RH exhaust cam phaser while aligning the paint mark with the phaser timing mark (1). Press the RH exhaust cam phaser onto the exhaust camshaft. Install and hand tighten the oil control valve (7).






- While maintaining this alignment, route the cam chain around the intake cam phaser so that the paint mark is aligned with the phaser timing mark (1). Press the intake cam phaser onto the intake cam, install and hand tighten the oil control valve (2). The arrows (3) on the cam phasers should point away from each other and the scribe lines (4) should be parallel to the valve cover sealing surface (6).

• Minor rotation of a camshaft (a few degrees) may be required to install the camshaft phaser or phaser lock.

- Install the RH camshaft phaser lock (10202) (5) and tighten the oil control valves (2) and (7) to 150 Nm (110 ft. lbs.).

- Remove the RH camshaft phaser lock (10202) (5) and the timing chain holder (10200).

- Rotate the crankshaft CW two complete revolutions stopping when the number one piston is again positioned at TDC on the exhaust stroke.

- While maintaining this alignment, verify that the arrows on the right side cam phasers (3) point away from each other and the scribe lines (4) are parallel to the valve cover sealing surface (6).

- There should be 12 chain pins (2) between the exhaust cam phaser triangle marking (1) and the intake cam phaser circle marking (3).






- If the engine timing is not correct, repeat this procedure.

- Install the spark plugs. Refer to => [ Spark Plug ] Service and Repair.

- Install the LH ignition coils. Refer to => [ Ignition Coil ] Service and Repair.

- Install the right cylinder head cover. Refer to => [ Right Cylinder Head Cover ] Right Cylinder Head Cover.

- Install the upper intake manifold and air cleaner housing assembly. Refer to => [ Upper Intake Manifold ] Upper Intake Manifold.

- Connect the negative battery cable.

• The Cam/Crank Variation Relearn procedure must be performed using the scan tool anytime there has been a repair/replacement made to a powertrain system, for example: flywheel, valvetrain, camshaft and/or crankshaft sensors or components.