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

Hyundai Sonata LF 2014-2019 Service Manual / Engine Mechanical System / Cylinder Head Assembly / Cylinder Head Cover Repair procedures

Removal

1.	Remove the engine cover.

2.	Disconnect the battery negative terminal.

3.	Remove the air clean hose. (Refer to Intake and Exhaust System - "Ari Cleaner")

4.	Disconnect the engine wiring connector and haness clamp and then remove the cylinder head protector and wiring from engine.

5.	Disconnect the exhaust OCV (Oil Control Valve) connector. (Refer to Fuel System - "CVVT Oil Control Valve")

6.	Disconnect the ignition coil. (Refer to Engine Electrical System - "Ignition Coil")

7.	Remove the PCV (Positiv Crankcase Ventilation) hose(A).

8.	Remove the high pressure fuel pump. (Refer to Fuel System - "High Pressure Fuel Pump")

Remove the cylinder head cover (A), gasket (B).

Loosen the cylinder head cover bolts with the order and steps.

Installation

Install the cylinder head cover.

(1)	The hardening sealant located on the upper area between timing chain cover and cylinder head should be removed before assembling cylinder head cover.

(2)

After applying sealant, it should be assembled within 5 minutes.

Bead width : 2.0 ~ 3.0mm(0.07 ~0.11 in.)

Sealant : LOCTITE 5900H

(3)

Install the cylinder head cover (A) with a new gasket (B).

Do not reuse the disassembled gasket.

(4)

Tighten the cylinder head cover bolts with the order and steps.

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)

2.	Install in the reverse order of removal.

Cylinder Head Cover Components and Components Location

Components 1. Cylinder head cover2. Cylinder head cover gasket3. Cam position sensor ...

CVVT & Camshaft Components and Components Location

Components 1. Exhaust camshaft2. Intake camshaft3. Exhaust CVVT 4. Intake CVVT 5. Camshaft bearing cap6. Camshaft front bearing cap7. O-ring8. OCV (Oil Control Valve) adapter ...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Heater Unit Repair procedures
Replacement When prying with a flat-tip screwdriver or use a prying trim tool, wrap it with protective tape, and apply protective tape around the related parts, to prevent damage. 1. Disconnect the negative (-) battery terminal. 2. Recover the refrigerant with a ...

Hyundai Sonata LF 2014-2019 Service Manual: Side Impact Sensor (SIS) Description and Operation
Description Side Impact Sensor (SIS) system consists of two P-SIS which are installed at each center of the front door module (LH and RH) and two SIS which are installed at each center pillar nearby (LH and RH). Side Pressure Sensor is also called P-SIS because it detects pressure due to col ...