Yaris L4-1.5L (1NZ-FE) (2007)
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(b) Release the lock pin.
(1) Cover the 4 oil paths of the cam journal with tape as shown in the illustration.
HINT: One of the 2 grooves located on the cam journal is for retarding cam timing (upper) and the other is for advancing cam timing
(lower). Each groove has 2 oil paths. Plug one of the oil paths for each groove with a piece of rubber before wrapping the cam journal
with the tape.
(2) Puncture the tape covering the advance oil path and the retard oil path on the opposite side from the advance oil path.
(3) Apply air at about 150 kPa (1.5 kgf*cm2) pressure into the 2 broken paths (the advance side path and the retard side path).
NOTICE: Cover the paths with a shop rag or piece of cloth to prevent oil splashes.
