Camshaft Phaser and Sprocket - LH

Camshaft Phaser and Sprocket - LH





Removal

NOTICE: This procedure must be followed exactly or damage to the valves and pistons will result.

1. Remove the LH valve cover. For additional information, refer to Valve Cover - LH Valve Cover - LH.

2. NOTICE: Damage to the camshaft phaser and sprocket assembly will occur if mishandled or used as a lifting or leveraging device.

NOTICE: Only use hand tools to remove the camshaft phaser and sprocket assembly or damage may occur to the camshaft or camshaft phaser and sprocket.

Loosen and back off the LH camshaft phaser and sprocket bolt one full turn.





3. Disconnect the LH Camshaft Position (CMP) sensor electrical connector.





4. Remove the bolt and the LH CMP sensor.





5. Rotate the crankshaft clockwise until the No. 5 cylinder camshaft exhaust lobe opens the valve and the 2 intake lobes are in the 3 o'clock position as shown.





6. Remove only the 3 camshaft roller followers shown in the illustration.





7. NOTICE: The camshaft roller followers must be installed in their original locations. Record camshaft roller follower locations. Failure to follow these instructions may result in engine damage.

NOTE: Do not allow the valve keepers to fall off the valve or the valve may drop into the cylinder. If a valve drops into the cylinder, the cylinder head must be removed. For additional information, refer to Cylinder Head Cylinder Head - Removal.

NOTE: It may be necessary to push the valve down while compressing the spring.

Using the Valve Spring Compressor, remove only the 3 designated camshaft roller followers from the previous step.





8. NOTICE: The crankshaft cannot be moved once set or engine damage may occur.

Rotate the crankshaft a half turn clockwise, as viewed from the front, positioning the No. 5 cylinder camshaft exhaust lobe at the 11 o'clock position as shown.





9. NOTICE: The engine is not freewheeling. The camshaft procedure must be followed exactly or damage to valves and pistons will result.

NOTE: The Timing Chain Locking Tool must be installed square to the timing chain and the engine block.

NOTE: Engine front cover removed from art for clarity.

Install the Timing Chain Locking Tool in the LH timing chain as shown.





10. NOTICE: Do not remove the Timing Chain Locking Tool at any time during assembly. If the Timing Chain Locking Tool is removed or out of placement, the engine front cover must be removed and the engine must be retimed. For additional information, refer to Timing Drive Components Removal and Replacement. Failure to follow this instruction can result in damage to the valves and pistons.

NOTICE: The timing chain must be installed in its original position onto the camshaft phaser and sprocket using the scribed marks, or damage to valves and pistons will result.

NOTE: RH shown, LH similar.

Scribe a location mark on the timing chain and the camshaft phaser and sprocket assembly.





11. NOTICE: Damage to the camshaft phaser and sprocket assembly will occur if mishandled or used as a lifting or leveraging device.

NOTICE: Only use hand tools to remove the camshaft phaser and sprocket bolt or damage may occur to the camshaft or camshaft phaser and sprocket.

NOTICE: Do not remove the Timing Chain Locking Tool at any time during assembly. If the Timing Chain Locking Tool is removed or out of placement, the engine front cover must be removed and the engine must be retimed. For additional information, refer to Timing Drive Components Removal and Replacement. Failure to follow this instruction can result in damage to the valves and pistons.

Remove the bolt and remove the camshaft phaser and sprocket assembly from camshaft and then from the timing chain.

- Discard the bolt and washer.





12. NOTE: If replacement of the camshaft phaser and sprocket is necessary, transfer the scribe mark to the new camshaft phaser and sprocket.

Inspect the camshaft phaser and sprocket for damage. For additional information, refer to Engine.

Installation

1. NOTICE: Do not remove the Timing Chain Locking Tool at any time during assembly. If the Timing Chain Locking Tool is removed or out of placement, the engine front cover must be removed and the engine must be retimed. For additional information, refer to Timing Drive Components Removal and Replacement. Failure to follow this instruction can result in damage to the valves and pistons.

NOTICE: The timing chain must be installed in its original position onto the camshaft phaser and sprocket using the scribed marks, or damage to valves and pistons will result.

NOTE: RH shown, LH similar.

Position the camshaft phaser and sprocket into the timing chain with the timing chain scribe marks in alignment.





2. NOTICE: Do not remove the Timing Chain Locking Tool at any time during assembly. If the Timing Chain Locking Tool is removed or out of placement, the engine front cover must be removed and the engine must be retimed. For additional information, refer to Timing Drive Components Removal and Replacement. Failure to follow this instruction can result in damage to the valves and pistons.

NOTICE: Damage to the camshaft phaser and sprocket assembly will occur if mishandled or used as a lifting or leveraging device.

NOTICE: Only use hand tools to install the camshaft phaser and sprocket bolt or damage may occur to the camshaft or camshaft phaser and sprocket.

Position the camshaft phaser and sprocket onto the camshaft. Install a new camshaft phaser and sprocket bolt finger-tight.





3. NOTE: Engine front cover removed from art for clarity.

Remove the Timing Chain Locking Tool.





4. Rotate the crankshaft a half turn counterclockwise until the No. 5 cylinder camshaft exhaust lobe opens the valve and the 2 intake lobes are in the 3 o'clock position as shown.





5. NOTE: Do not allow the valve keepers to fall off the valve or the valve may drop into the cylinder. If a valve drops into the cylinder, the cylinder head must be removed. For additional information, refer to Cylinder Head Cylinder Head - Removal.

NOTE: It may be necessary to push the valve down while compressing the spring.

Using the Valve Spring Compressor, install the 3 originally removed camshaft roller followers.





6. Install the CMP sensor and the bolt.
- Tighten to 10 Nm (89 lb-in).





7. Connect the CMP electrical connector.





8. NOTICE: Only use hand tools to install the camshaft phaser and sprocket assembly or damage may occur to the camshaft or camshaft phaser and sprocket.

NOTICE: Damage to the camshaft phaser and sprocket assembly will occur if mishandled or used as a lifting or leveraging device.

Tighten the camshaft phaser and sprocket bolt in 2 stages:

- Stage 1: Tighten to 40 Nm (30 lb-ft).

- Stage 2: Tighten an additional 90 degrees.





9. Install the LH valve cover. For additional information, refer to Valve Cover - LH Valve Cover - LH.