![Kia Forte: [CVVT System Mode] - Cylinder Head Assembly - Engine Mechanical System - Kia Forte TD 2014-2018 Service Manual](images/pages/small/2.png)
Kia Forte: [CVVT System Mode]
Second generation YD (2014-2018) / Kia Forte TD 2014-2018 Service Manual / Engine Mechanical System / Cylinder Head Assembly / [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 |
CVVT & Camshaft 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 ...
CVVT & Camshaft Removal
•
Use fender covers to avoid damaging painted surfaces.
•
...
See also:
Intake Actuator Description
The intake actuator is located at the blower unit. It regulates the intake
door by the signal from the control unit. Pressing the intake selection switch
will shift between recirculation and ...
Front Fog Lamps Inspection
1.
Disconnect the negative(-) battery terminal.
2.
Remove the lighting switch of the multi-function switch.
(Refer to Multifunction Swit ...
Inspection
[EVAP. Leakage Test]
1.
Select "Evap. Leakage Test".
2.
Proceed with the test according to the screen introductio ...
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