Variable Valve Timing Sprocket
INSPECTIONINTAKE V.V.T. SPROCKET
CAUTION
Never overhaul the V.V.T. sprocket.
1. Seal with a tape all the intake camshaft ports for the advanced angle and the retarded angle.
2. Make a hole on the port for the advanced angle.
CAUTION
Fix the camshaft on a vise not to damage it.
3. Fixing the hexagonal area of the intake camshaft on a vise, install the intake V.V.T. sprocket.
CAUTION
When applying air pressure, keep in mind that oil could splash.
4. By applying air pressure slowly to the holed port for the advanced angle, remove the stopper pin.
5. Turn the intake V.V.T. sprocket housing in the right and left directions. Check it smoothly moves in the range of A (approximately 12.5°)
NOTE: The stopper pin is locked in the most retarded angle position.
6. .After the check, remove the intake V.V.T. sprocket from the intake camshaft
7. Completely remove the tape sealing the intake camshaft ports for the advanced angle and for the retarded angle.
EXHAUST V.V.T. SPROCKET
CAUTION
Never overhaul the V.V.T. sprocket.
1. Seal with a tape all the exhaust camshaft ports for the advanced angle and the retarded angle.
2. Make a hole on the port for the retarded angle.
CAUTION
Fix the camshaft on a vise not to damage it.
3. Fixing the hexagonal area of the exhaust camshaft on a vise, install the exhaust V.V.T. sprocket.
CAUTION
When applying air pressure, keep in mind that oil could splash.
4. By applying air pressure slowly to the holed port for the retarded angle, remove the stopper pin.
5. Turn the exhaust V.V.T. sprocket housing in the right and left directions. Check it smoothly moves in the range of A (approximately 17.5°)
NOTE: The stopper pin is locked in the most advanced angle position.
6. .After the check, remove the exhaust V.V.T. sprocket from the exhaust camshaft
7. Completely remove the tape sealing the exhaust camshaft ports for the advanced angle and for the retarded angle.