Kia Rio: CVVT (Continuously Variable Valve Timing) System: 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 control.

CVVT (Continuously Variable Valve Timing) System: Description

Continuous Variable Valve Timing (CVVT) system advances or retards the valve timing of the intake and exhaust valve in accordance with the ECM control signal which is calculated by the engine ...

CVVT (Continuously Variable Valve Timing) System: [CVVT System Mode]

(1) Low Speed / Low Load (2) Part Load (3) Low Speed / High Load (4) High Speed / High Load ...

See also:

Oil Pump Unit (OPU) Inspection
OPU Problem Inspection Procedure 1. TEST OPU GROUND CIRCUIT: Measure resistance between OPU and chassis ground using the backside of OPU harness connector ...

TJ Joint Inspection
1. Check the spider assembly for roller rotation, wear or corrosion. 2. Check the groove inside the joint case for wear or corrosion ...

Thermostat: Removal
   Disassembly of the thermostat would have an adverse effect, causing a lowering of cooling efficiency. ...