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: Clutch Actuator Assembly Repair procedures
Removal 1. Remove the air cleaner assembly and air duct. (Refer to Engine Mechnical System - "Air cleaner") 2. Remove the TCM. (Refer to Dual Clutch Transmission - "TCM") 3. Remove the battery and tray. (Refer to Engine Electrical System - "Battery") 4. Disconnect the clutch actua ...

Hyundai Sonata LF 2014-2019 Service Manual: Alternator Specifications
Specification ItemSpecificationRated voltage 13.5V, 130A Speed in use 1,000 ~ 18,000 rpm Voltage regulator IC Regulator built-in type Regulator Setting Voltage External mode Refer to below graph Internal mode 14.55 ± 0.3V Temperature Gradient External mode 0 ± 3 mV / ...