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Hyundai Azera: CVVT Assembly Repair procedures - Cylinder Head Assembly - Engine Mechanical System - Hyundai Azera 2011-2025 Service ManualHyundai Azera: CVVT Assembly Repair procedures

Fifth generation HG (2011–2025) / Hyundai Azera 2011-2025 Service Manual / Engine Mechanical System / Cylinder Head Assembly / CVVT Assembly Repair procedures

Removal
1.
Remove the timing chain.
(Refer to Timing System - "Timing Chain")
2.
Remove the CVVT assembly.
A.
A: LH exhaust CVVT
B.
B: LH intake CVVT

C.
C: RH intake CVVT
D.
D: RH exhaust CVVT

   
When removing the CVVT assembly bolt, prevent the camshaft from rotating by using a wrench at position A.

Inspection
1.
Inspect the CVVT assembly.
(1)
Check that the CVVT assembly will not turn.
(2)
Apply vinyl tape to the retard hole except the one indicated by the arrow in the illustration.
[Intake]

[Exhaust]

(3)
Wrap tape around the tip of the air gun and apply air of approx. 150kpa(1.5kgf/cm?, 21psi) to the port of the camshaft.
(Perform this in order to release the lock pin for the maximum delay angle locking.)
   
When the oil splashes, wipe it off with a shop rag.
(4)
Under the condition of (3), turn the CVVT assembly to the advance angle side (the arrow marked direction in the illustration) with your hand.
Depending on the air pressure, the CVVT assembly will turn to the advance side without applying force by hand.

(5)
Except the position where the lock pin meets at the maximum delay angle, let the CVVT assembly turn back and forth and check the movable range and that there is no interference.
Standard: Movable smoothly in the range about 25°
(6)
Turn the CVVT assembly with your hand and lock it at the maximum delay angle position (clockwise).
Installation
1.
Install the CVVT assembly.
Tightening torque :
64.7 ~ 76.5N.m (6.6 ~ 7.8kgf.m, 47.7 ~ 56.4lb-ft)

   
•
Install camshaft-inlet to dowel pin of CVVT assembly.
At this time, attend not to be installed to oil hole of camshaft-inlet.
•
Hold the hexagonal head wrench portion of the camshaft with a vise, and install the bolt and CVVT assembly.
•
Do not rotate CVVT assembly when camshaft is installed to dowel pin of CVVT assembly.
A.
A: LH exhaust CVVT
B.
B: LH intake CVVT

C.
C: RH intake CVVT
D.
D: RH exhaust CVVT

   
When installing the CVVT assembly bolt, prevent the camshaft from rotating by using a wrench at position A.

2.
Install the timing chain.
(Refer to Timing System - "Timing Chain")
CVVT Assembly Description and Operation
Description Continuous Variable Valve Timing (CVVT) system advances or retards the valve timing of the intake and exhaust valve in accordance with the ECM control signal which is calculated by ...

Camshaft Components and Components Location
Components 1. RH exhaust camshaft2. RH intake camshaft3. LH intake camshaft4. LH exhaust camshaft ...

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