Toyota 2GR-FE, Manual

Page: 93 / 1021

EM–92
2GR-FE ENGINE MECHANICAL – ENGINE UNIT
EM
(g) Release the lock pin.
(1) Cover the 4 oil paths of the cam journal with
vinyl tape as shown in the illustration.
HINT:
4 oil paths are provided in the groove. Plug 2
paths with rubber pieces.
(2) Prick a hole in the tape placed on the advance
side path. Prick a hole in the tape placed on the
retard side path, on the opposite side to that of
the advance side path, as shown in the
illustration.
(3) Apply approximately 200 kPa (2.0 kgf/cm
2
, 28
psi) of air pressure to the 2 broken paths (the
advance side path and the retard side path).
CAUTION:
Cover the paths with a piece of cloth when
applying pressure to keep oil from
splashing.
(4) Make sure that the camshaft timing exhaust
gear turns in the retard direction when reducing
the air pressure applied to the advance side
path.
HINT:
The lock pin is released and the camshaft
timing exhaust gear turns in the retard
direction.
(5) When the camshaft timing exhaust gear moves
to the most retarded position, release the air
pressure from the advance side path, and then
release the air pressure from the retard side
path.
NOTICE:
Be sure to release the air pressure from the
advance side path first. If the air pressure of
the retard side path is released first, the
camshaft timing exhaust gear may abruptly
shift in the advance direction and break the
lock pin or other parts.
Rubber
Retard Side
Path
Vinyl Tape
Advance Side
Path
Close
Close
Open
Open
A106103E01
Advance
Side Path
Retard Side
Path
A106104E01
Retard Side
Path
Advance
Side Path
Hold Pressure
Decompress
A106105E02