Section 3 (Engine Mechanical (2AZ-FE)): Camshaft: Inspection

1. Install the camshaft timing gear assembly (See INSTALLATION ).
2. Clamp the camshaft in a vise, and make sure that the camshaft timing gear assembly does not rotate.
3. Cover all the oil paths with vinyl tape except the advance side path shown in the illustration.
   Fig 1: Locating Advance Side Path

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Apply air pressure of 150 kPa (1.5 kgf/cm² , 22 psi) to the oil path
   CAUTION: Cover the paths with a piece of cloth to avoid oil splashes.
5. Check that the camshaft timing gear revolves in the advance direction (counterclockwise) by hand.

HINT:

Depending on the air pressure, the camshaft timing gear may turn to the advance side without applying force by hand. Also, if enough air pressure cannot be applied because of air leakage from the path, releasing the lock pin may be difficult.

Fig 2: Applying Air Pressure To Oil Path

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Turn the camshaft timing gear within its movable range (21 °) 2 or 3 times, but do not turn it to the most retarded position. Make sure that the gear turns smoothly.
   NOTE: Do not use air pressure to perform the smooth rotation check.
2. Check the lock in the most retarded position.
   1. Confirm that the camshaft timing gear is locked at the most retarded position.
3. Remove the camshaft timing gear assembly (See REMOVAL ).