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Hyundai Tucson: When not using the CVVD fixture

Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual / Engine Mechanical System / Cylinder Head Assembly / When not using the CVVD fixture

(3) Remove the CVVD assembly.

Remove the Intake CVVT (A).

Installation

Installation

Install the Intake CVVT (A).

Install the CVVD assembly (A).

WARNING

WARNING

After installing the CVVD, check whether the swing arm is separated or is installed correctly.
When installing the intake camshaft, spray the engine oil to the camshaft journal installing part (A) of the cam carrier.

The amount of application should be enough to flow down both the front and back sides when it is applied to the center.
For installation, the timing mark (A) of the intake CVVT and the timing chain mark (B) should be matched.

WARNING

During the installation, there should be no artifical rotation or movement of the guide bracket and control shaft.
When removing the CVVD fixing jig, be sure to securely tighten the M6 bolts.
If CVVD fixing jig is available, be sure to work by using it.

When Using the CVVD fixture

When installing the CVVD assembly mounting bolts (M6), tighten sequence shown. Tightening torque : 1ST 4.9 - 6.9 N.m (0.5 - 0.7 kgf.m, 3.6 - 5.1 lb-ft) 2nd 9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft) Remove the CVVD fixture

Intake/Exhaust CVVT Timing Mark

Intake CVVT Timing Mark Exhaust CVVT Timing Mark Install the cam to cam guide (A). Tightening torque : 9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft) Install the intake variable force solenoid (VFS) valve (A). Tightenin

Cylinder Head

Inspect for flatness. Using a precision straight edge and feeler gauge, measure the contacting surface of the cylinder block and the manifolds for warpage Flatness of cylinder head gasket surface: Less than 0.05 mm (0.0020 in.) fo

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