Structure

STRUCTURE

The variable valve lift mechanism that is provided to intake valve rocker assembly changes the lift amount of one side intake valves to high-lift or low-lift according to the engine speed and engine load. The variable valve lift mechanism is operated by the engine oil pressure that is controlled by the oil switching valve (OSV).

CAMSHAFT




3 cams are provided to each cylinder: the fixed lift cam, the variable high lift cam, and the variable low lift cam.

VARIABLE VALVE LIFT MECHANISM




The variable valve lift mechanism consists of a low lift arm, high lift arm, torsion spring, and a small cylinder that includes 2 locking pins and a spring. The engine oil pressure is led from OSV to the oil chamber of support.