Hyundai Elantra: Cylinder Head Assembly / Cylinder Head Cover Repair procedures

Removal
   
Use fender covers to avoid damaging painted surfaces.
To avoid damage, unplug the wiring connectors carefully while holding the connector portion.
   
Mark all wiring and hoses to avoid misconnection.
1.
Remove the engine cover.
(Refer to Engine And Transaxle Assembly - "Engine Cover")
2.
Disconnect the battery negative terminal.
3.
Disconnect the wiring connectors and harness clamps and remove the connector brackets around the cylinder head cover.

4.
Remove the air duct and air cleaner assembly.
(Refer to Intake And Exhasut System - "Air Cleaner")
5.
Remove the ignition coils.
(Refer to Engine Electrical System - “Ignition Coil”)
6.
Remove the engine oil level gauge.
(Refer to Lubrication System - “Oil Level Gauge & Pipe”)
7.
Disconnect the positive crankcase ventilation (PCV) hose (A).

8.
Remove the cylinder head cover (A).

   
Unfasten the bolts in the sequence as shown.

Installation
1.
Install cylinder head cover.
(1)
The hardening sealant located on the cylinder head cover and the gap between the timing chain cover and the cam carrier should be removed before assembling cylinder head cover.
(2)
Apply engine oil on the lip portion of the oil seal on the cover and outer surface of the spark plug pipes.
(3)
After applying sealant on the gap between the timing chain cover and the cam carrier, it should be assembled within 5 minutes.

Bead width : 2.0 ~ 3.0 mm (0.08 ~ 0.12 in.)
Sealant : Threebond 1217H or equivalent

(4)
Install the cylinder head cover by tightening the bolts, in several passes, in the sequence as shown.

Tightening torque
1st step:
3.9 ~ 5.9 N.m (0.4 ~ 0.6 kgf.m, 2.9 ~ 4.3 lb-ft)
2nd step:
7.8 ~ 9.8 N.m (0.8 ~ 1.0 kgf.m, 5.8 ~ 7.2 lb-ft)

   
Do not reuse cylinder head cover gasket.
Before installing the cylinder head cover, make sure the cylinder head cover gasket is not separated from the cylinder head cover gasket groove.
The engine running or pressure test should not be performed within 30 minutes after the cylinder head cover was assembled.
2.
Install the other parts reverse order of removal.
Cylinder Head Cover Components and Components Location
Components 1. Cylinder head cover2. Cylinder head cover gasket ...

CVVT & Camshaft Components and Components Location
Components 1. Camshaft bearing cap2. Camshaft front bearing cap3. Exhaust camshaft4. Intake camshaft5. Exhaust CVVT assembly6. Intake CVVT assembly ...

Other information:

Hyundai Elantra AD (2016-2020) Owners Manual: SRS Care
The SRS is virtually maintenancefree and there are no parts you can safely service by yourself. If the SRS air bag warning light does not illuminate when the ignition switch is in the ON position, or continuously remains on, have your vehicle immediately inspected by an authorized HYUNDAI deal ...

Hyundai Elantra AD (2016-2020) Service Manual: Rear Wheel Guard Repair procedures
Replacement     • Put on gloves to prevent hand injuries.     • When removing with a flat-tip screwdriver or remover, wrap protective tape around the tools to prevent damage to components. • Take care not to scratch the body surface. ...

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