![Kia Rio: [CVVT System Mode] - CVVT & Camshaft - Cylinder Head Assembly - Engine Mechanical System - Kia Rio UB 2012-2024 Service Manual](images/pages/small/3.png)
Kia Rio: [CVVT System Mode]
| (1) Low Speed / Low Load |
(2) Part Load |
|
|
| (3) Low Speed / High Load |
(4) High Speed / High Load |
|
|
| Driving Condition |
Exhaust Valve |
Intake Valve |
||
| Valve Timing |
Effect |
Valve Timing |
Effect |
|
| (1) Low Speed /Low Load |
Completely Advance |
* Valve Under-lap * Improvement of combustion stability |
Completely Retard |
* Valve Under-lap * Improvement of combustion stability |
| (2) Part Load |
Retard |
* Increase of expansion work * Reduction of pumping loss * Reduction of HC |
Retard |
* Reduction of pumping loss |
| (3) Low Speed /High Load |
Retard |
* Increase of expansion work |
Advance |
* Prevention of intake back flow (Improvement of volumetric
efficiency) |
| (4) High Speed /High Load |
Advance |
* Reduction of pumping loss |
Retard |
* Improvement of volumetric efficiency |
Operation Principle
The CVVT has the mechanism rotating the rotor vane with hydraulic force
generated by the engine oil supplied to the advance or retard chamber in accordance
with the CVVT oil control valve con ...
Removal
1.
Remove the cyliner head cover.
(Refer to Timing System)
2.
Remove the timing chain cover.
(Refer to Timing System)
...
See also:
High Mounted stop lamp Installation
[4 Door]
1.
Install the high mounted stop lamp assembly.
2.
Install the package tray trim.
3.
Connect the n ...
Specification
...
Overdrive Clutch Control Solenoid Valve(OD/C_VFS) Description
Overdrive clutch control solenoid valve(OD/C_VFS) is attached to the valve
body. This variable force solenoid valve directly controls the hydraulic pressure
inside the overdrive clutch.
...
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