V.V.T. Sprocket

CAUTION: Never overhaul the V.V.T. sprocket.

Seal with a tape all the intake camshaft ports for the advanced angle and the retarded angle.
Make a hole on the port for the advanced angle.
CAUTION: Fix the camshaft on a vise not to damage it.

Fig 1: Sealing Intake Camshaft Ports With Tape
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Fixing the hexagonal portion <M/T> or square portion <CVT> of the intake camshaft on a vise, install the V.V.T. sprocket.
CAUTION: When applying air pressure, keep in mind that oil could splash.

Fig 2: Locating Intake Hexagonal Portion (M/T)
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Fig 3: Locating Intake Square Portion (CVT)
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
By applying air pressure slowly to the holed port for the advanced angle, remove the stopper pin.
Turn the V.V.T. sprocket housing in the right and left directions. Check it smoothly moves in the range of A (approximately 25°)
NOTE: The stopper pin is locked in the most retarded angle position.
After the check, remove the V.V.T. sprocket from the intake camshaft
Completely remove the tape sealing the intake camshaft ports for the advanced angle and for the retarded angle.

Fig 4: Turning VVT Sprocket Housing In Right And Left Directions
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.