Hyundai Tucson: Cylinder head cover

Removal

1. Disconnect the battery negative terminal.
2. Remove the cylinder head cover.

(Refer to Cylinder Head Assembly - "Cylinder Head Cover")

3. Turn the crankshaft damper pulley so that No. 1 piston is at top dead center.

(1) Turn the crankshaft damper pulley and align its groove with the timing mark on the timing chain cover

(2) Check the timing chain, be sure that the timing mark (A) of each sprocket is matched with the timing mark (B) (color link) of the timing chain.

If not, turn the crankshaft damper pulley by one revolution (360º).

Intake CVVT

Exhaust CVVT

4. Remove the intake and exhaust variable force solenoid (VFS) valves (A).

5. Remove the cam to cam guide (A).

6. Remove the fuel pump bracket (A).

7. Remove the camshaft front bearing cap (A) and camshaft bearing caps (B).

8. Loosen the service hole bolt (A).

9. Install the jack to the edge of oil pan
10. Lift the engine using the jack to obtain space.
11. Release the lock by putting down rachet plate (B) of timing chain tensioner with using back of tiny awl (A).

12. Remove the intake oil control valve (OCV) & center bolt (A).

WARNING

• To prevent impurities from entering intake oil control valve (OCV) & center bolt, wear rubber gloves.
• Intake oil control valve (OCV) and center bolt, hold the hexagonal portion on the camshaft with a wrench to prevent the camshaft from rotating.

13. Remove the exhaust oil control valve (OCV) and center bolt (A).

WARNING

To prevent impurities from entering exhaust oil control valve (OCV) & center bolt, wear rubber gloves.

When removing the exhaust oil control valve (OCV) and center bolt, hold the hexagonal portion on the camshaft with a wrench to prevent the camshaft from rotating.

14. Remove the CVVD assembly

WARNING

• After removing the CVVD unit, make sure that the parts such as lifter, cam, etc are not separated.
• Ensure that the CVVD components are not damaged.

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