![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:
Canister Close Valve (CCV) Circuit Diagram
(M/T)
(A/T)
...
Using the iPod® device
Some iPod® models may not support communication protocol and files may
not properly play. Supported iPod® models: iPhone® 3GS/4 iPod® touch 1st~4th
generation iPod® nano 1st~6th generation iPod ...
Canister Inspection
1.
Check for the following items visually.
- Cracks or leakage of the canister
- Loose connection, distortion, or damage of the vapor hose/tube
A ...
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