Camshaft Position Actuator Replacement - Bank 1 (Right Side) Exhaust Second Design
Special Tools
EN-48313
Timing Chain Retention Tool
Important: To identify a camshaft drive design, refer to
Camshaft Timing Drive Design Identification
.
Removal Procedure
- Remove the lower intake manifold. Refer to
Lower Intake Manifold Replacement
.
- Remove the right camshaft cover. Refer to
Camshaft Cover Replacement - Right Side
.
- Remove the right intake and exhaust camshaft position sensors. Refer to
Camshaft Position Sensor Replacement - Bank 1 (Right Side) Intake
and
Camshaft Position Sensor Replacement - Bank 1 (Right Side) Exhaust
.
- Remove the right intake and exhaust camshaft position actuator solenoids. Refer to
Camshaft Position Actuator Solenoid Valve Solenoid Replacement - Bank 1 (Right Side) Intake
and
Camshaft Position Actuator Solenoid Valve Solenoid Replacement - Bank 1 (Right Side) Exhaust
.
Important: Rotate the crankshaft balancer bolt in a clockwise direction ONLY.
- Rotate the crankshaft balancer using the balancer bolt until the camshafts are in a neutral (low tension) position. The camshafts will be parallel with the camshaft cover rail (1).
Important: Ensure that the camshaft timing chain and the camshaft position actuators are marked for proper assembly.
- Use a paint stick to create an alignment mark (17) on one of the timing chain links and the adjacent tooth on the exhaust camshaft position actuator (18).
- Use a paint stick to create an alignment mark (16) on one of the timing chain links and the adjacent tooth on the intake camshaft position actuator (15).
Notice: Refer to Torque Reaction Against Timing Drive Chain Notice in the Preface section.
- Use an open end wrench on the hex cast into the left intake and exhaust camshafts and rotate the camshafts toward each other in order to create slack in the chain between the actuators.
- Unscrew the
EN-48313
so that the legs of the tool are retracted.
- Insert the
EN-48313
between the camshaft actuators, rearward of the timing chain until the top line that is scribed in the body of the tool (1) is adjacent to the top surface of the cylinder
head (2). This is the approximate installed position.
Important: The engine front cover is removed for clarity in the following graphics, but NOT required to perform the procedure.
- Ensure that the feet (2) on the legs of the tool are facing the front of the engine.
- Partially expand the legs (1) of the
EN-48313
by turning the T-shaped handle clockwise.
- Continue expanding the
EN-48313
until the feet (2) contact the timing chain. Do not tighten at this time.
Important:
• | Ensure that the foot (1) of the
EN-48313
is engaged into one of the link pockets to prevent chain slippage during tightening of the
EN-48313
. |
• | Do not allow the body of the
EN-48313
to rotate when tightening the T-handle. |
- Hand tighten the
EN-48313
.
Notice: Refer to Torque Reaction Against Timing Drive Chain Notice in the Preface section.
- Use an open end wrench on the hex cast into the body of the
EN-48313
and hand tighten the T-handle.
Notice: Refer to Torque Reaction Against Timing Drive Chain Notice in the Preface section.
- Use an open end wrench on the hex cast into the right intake and exhaust camshafts and rotate the camshafts towards each other in order to create slack in the chain between the actuators.
- The
EN-48313
is now properly installed to hold the timing chain in position.
Notice: Refer to Torque Reaction Against Timing Drive Chain Notice in the Preface section.
- Use an open end wrench on the hex cast into the camshaft in order to prevent engine rotation when loosening the camshaft position actuator bolt.
- Remove the right exhaust camshaft position actuator bolt.
- Remove the right exhaust camshaft position actuator. When removing the actuator, place the chain on the engine cover side of the actuators.
- Rotate the actuator in order to align the opening in the actuator reluctor wheel with the cam sensor boss in the front cover, to allow actuator removal.
- If removing both the exhaust and intake camshaft actuators, the timing chain can be draped over the
EN-48313
once the actuators have been removed.
Installation Procedure
- Ensure the proper camshaft position
actuator is installed. Observe the body of the camshaft position actuator for the EX marking (1).
The marking is for an exhaust camshaft position actuator,
- Ensure the proper timing mark is used. Observe the outer ring of the camshaft position actuator for the triangle marking (2).
The marking is for alignment to the highlighted timing chain link on the right side of the engine,
Notice: Refer to Torque Reaction Against Timing Drive Chain Notice in the Preface section.
- Use an open wrench on the hex cast into the camshaft in order to prevent camshaft rotation when tightening the camshaft position actuator bolt.
Important: Ensure that the camshaft timing chain and the camshaft position actuators are marked for proper assembly.
- Align the exhaust camshaft actuator alignment mark (18) to the timing chain alignment mark (17) made during disassembly.
- Ensure that the intake camshaft actuator alignment mark (15) and the timing chain alignment mark (16) are also aligned.
- Position the exhaust camshaft actuator to the camshaft and install the actuator bolt hand tight.
- Remove the
EN-48313
.
Notice: Refer to Fastener Notice in the Preface section.
- Tighten the right exhaust camshaft position actuator bolt.
Tighten
Tighten the bolt to 58 N·m (43 lb ft).
- Install the right intake and exhaust camshaft position actuator solenoids. Refer to
Camshaft Position Actuator Solenoid Valve Solenoid Replacement - Bank 1 (Right Side) Intake
and
Camshaft Position Actuator Solenoid Valve Solenoid Replacement - Bank 1 (Right Side) Exhaust
.
- Install the right intake and exhaust camshaft position sensors. Refer to
Camshaft Position Sensor Replacement - Bank 1 (Right Side) Intake
and
Camshaft Position Sensor Replacement - Bank 1 (Right Side) Exhaust
.
- Install the right camshaft cover. Refer to
Camshaft Cover Replacement - Right Side
.
- Install the lower intake manifold. Refer to
Lower Intake Manifold Replacement
.
Camshaft Position Actuator Replacement - Bank 1 (Right Side) Exhaust First Design
Special Tools
EN 46108
Timing Chain Retention Tool
Important: To identify a camshaft drive design, refer to
Camshaft Timing Drive Design Identification
.
Removal Procedure
- Remove the lower intake manifold. Refer to
Lower Intake Manifold Replacement
.
- Remove the right camshaft cover. Refer to
Camshaft Cover Replacement - Right Side
.
- Remove the right intake and exhaust camshaft position sensors. Refer to
Camshaft Position Sensor Replacement - Bank 1 (Right Side) Intake
and
Camshaft Position Sensor Replacement - Bank 1 (Right Side) Exhaust
.
- Remove the right intake and exhaust camshaft position actuator solenoids. Refer to
Camshaft Position Actuator Solenoid Valve Solenoid Replacement - Bank 1 (Right Side) Intake
and
Camshaft Position Actuator Solenoid Valve Solenoid Replacement - Bank 1 (Right Side) Exhaust
.
Important: Rotate the crankshaft balancer in a clockwise rotation ONLY.
- Rotate the crankshaft using the crankshaft balancer bolt until the camshafts are in a neutral (low tension) position. The camshaft flats will be parallel with the camshaft cover rail (1).
Notice: Refer to Torque Reaction Against Timing Drive Chain Notice in the Preface section.
Important:
• | Use an open-end wrench at the camshaft hex to prevent camshaft/engine rotation. |
• | DO NOT remove the camshaft position actuator bolt at this time. |
- Loosen the camshaft position actuator bolt.
Important: Ensure that the tips of the
EN 46108
are fully engaged into the timing chain (3 and 4).
- Install the
EN 46108
(1 and 2) in order to retain
the timing chain.
Firmly tighten the
EN 46108
nuts.
Important: Ensure that the camshaft timing chain and the camshaft position actuators are marked for proper assembly.
- Mark the timing chain and the respective locations on camshaft position actuators (15-18).
- Remove the right exhaust camshaft position actuator bolt.
- Remove the right exhaust camshaft actuator.
Installation Procedure
- Ensure the proper camshaft position actuator is installed. Observe the body of the camshaft position actuator for the EX marking (1).
The marking is for an exhaust camshaft position actuator,
- Ensure the proper timing mark is used. Observe the outer ring of the camshaft position actuator for the triangle marking (2).
The marking is for alignment to the highlighted timing chain link on the right side of the engine,
Important:
• | Ensure that the marks on the camshaft position actuators and the timing chain (15-18) are aligned. |
• | DO NOT tighten the camshaft position actuator bolt at this time. |
- Assemble the camshaft actuator to the camshaft.
- Loosely install the camshaft actuator bolt.
- Remove the
EN 46108
.
Notice: Refer to Torque Reaction Against Timing Drive Chain Notice in the Preface section.
Important: Use an open-end wrench at the camshaft hex to prevent camshaft/engine rotation.
- Tighten the camshaft position actuator. Refer to
Camshaft Position Actuator Installation - Right Side Exhaust
.
- Install the right intake and exhaust camshaft position actuator solenoids. Refer to
Camshaft Position Actuator Solenoid Valve Solenoid Replacement - Bank 1 (Right Side) Intake
and
Camshaft Position Actuator Solenoid Valve Solenoid Replacement - Bank 1 (Right Side) Exhaust
.
- Install the right intake and exhaust camshaft position sensors. Refer to
Camshaft Position Sensor Replacement - Bank 1 (Right Side) Intake
and
Camshaft Position Sensor Replacement - Bank 1 (Right Side) Exhaust
.
- Install the right camshaft cover. Refer to
Camshaft Cover Replacement - Right Side
.
- Install the lower intake manifold. Refer to
Lower Intake Manifold Replacement
.