Removal |
1. |
Turn the crankshaft pulley clockwise, and align its groove with the
timing mark of the timing chain cover.
|
2. |
Remove the timing chain cover & oil pump assembly.
(Refer to Timing System - "Timing Chain Cover & Oil Pump Assembly")
|
3. |
Align the timing marks of the CVVT sprockets with the upper surface
of the cylinder head to make No.1 cylinder be positioned at TDC.
|
4. |
Remove the hydraulic tensioner (A).
|
5. |
Remove the timing chain tensioner arm (A) and guide (B).
|
6. |
Remove the timing chain (A).
|
Inspection |
1. |
Check the CVVT sprocket, crankshaft sprocket teeth for abnormal wear,
cracks or damage. Replace if necessary.
|
2. |
Check a contact surface of the chain tensioner arm and guide for abnormal
wear, cracks or damage.
Replace if necessary.
|
3. |
Check the hydraulic tensioner for its piston stroke and ratchet operation.
Replace if necessary.
|
Installation |
1. |
Dowel pin of crankshaft should be positioned at 3° in relation to vertical
center line.
|
2. |
Align the TDC marks (A) of the CVVT sprockets with the upper surface
of the cylinder head to make No.1 cylinder be positioned at TDC.
|
3. |
Install the new O-rings (A).
|
4. |
Install the timing chain guide (A) and the timing chain (B).
|
5. |
Install the chain tensioner arm (A).
|
6. |
Install the hydraulic tensioner (A) and remove the pin (B).
|
7. |
After rotating crankshaft 2 revolutions in regular direction (clockwise
viewed from front), confirm that the TDC marks (A) on the intake and
exhaust CVVT sprockets aligned with the top surface of cylinder head.
|
8. |
Install the timing chain cover & oil pump assembly.
(Refer to Timing System - "Timing Chain Cover & Oil Pump Assembly")
|
Hyundai Kona (OS) 2018-2025 Service Manual: AVN Antenna Repair procedures
Removal
Roof Antenna
1.
Disconnect the negative (-) battery terminal.
2.
Remove the roof trim assembly.
(Refer to Body - "Roof Trim Assembly")
3.
Disconnect the roof antenna cable and conn ...
Hyundai Kona (OS) 2018-2025 Service Manual: CVVT (Continuous Variable Valve Timing) System Description and operation
Description
Continuous Variable Valve Timing (CVVT) system advances or retards the valve
timing of the intake and exhaust valves in accordance with the ECM control signal
calculated by the engine speed and load.
By controlling CVVT, the valve over-lap or under-lap occurs, w ...