Page 2017 of 5135

A62192
Hold Pressure
DecompressAdvanced
Side Path Retard
Side Path
A62190
Advance
Side Path Retard Side
Path
Open
Close
Rubber Vinyl Tape Open Close
± ENGINE MECHANICALCAMSHAFT (1ZZ±FE/3ZZ±FE)
14±69
AVENSIS REPAIR MANUAL (RM1018E)
(4) Confirm if the camshaft timing gear assembly re-
volves in the timing advance direction when weak-
ening the air pressure of the timing retard path.
HINT:
When the lock pin is released, the camshaft timing gear re-
volves in the advance direction.
(5) When the camshaft timing gear comes to the most
advanced position, take out the air pressure of the
timing retard side path, and then take out that of tim-
ing advance side path.
CAUTION:
Camshaft timing assembly gear occasionally shifts to the
retard side abruptly, if the air compression of the advanced
side path is released first. It often causes the breakage of
the lock pin.
(c) Check smooth revolution
(1) Revolve the camshaft timing gear assembly within
the movable range [20 (40CA)] except for the
most retarded position several times, and check the
smooth revolution.
CAUTION:
Be sure to perform this check by hand, instead of air pres-
sure.
(d) Check the lock in the most retarded position.
(1) Confirm that the camshaft timing gear assembly is
locked at the most retarded position.
16. REMOVE CAMSHAFT TIMING GEAR ASSY
(a) Clamp the camshaft in a vice, and confirm that the gear
is locked.
CAUTION:
Be careful not to damage the camshaft.
(b) Cover 4 oil paths of cam journal with vinyl tape as shown
in the illustration.
HINT:
The one of the 2 glooves on the cam journal is for retards (up-
per) and the rest is for advances (lower). Each groove has the
2 oil paths. Plug one of the oil paths for each groove with rubber
pieces before wrapping the cam journal with the tape.
(1) Punctuate the tape for the advance oil path and for
the retard oil path in the opposite side from the ad-
vance as shown in the illustration.
Page 2018 of 5135

A62191
Advanced
Side Path Retard
Side Path
A62192
Hold Pressure
DecompressAdvanced
Side Path Retard
Side Path
A62193
Straight Pin Fringe Bolt
A62194
Straight Pin
Key Groove
14±70
± ENGINE MECHANICALCAMSHAFT (1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
(c) Put air pressure into two broken paths (the advance side
path and the retard side path) with about 150 kPa {1.5
kgfcm}.
CAUTION:
Cover the paths with shop rag to avoid oil splashing.
(d) Confirm if the camshaft timing gear assembly revolves in
the timing advance direction when weakening the air
pressure of the timing retard path.
HINT:
When the lock pin is released, the camshaft timing gear re-
volves in the advance direction.
(e) When the camshaft timing gear comes to the most ad-
vanced position, take out the air pressure of the timing re-
tard side path, next, take out that of timing advance side
path.
CAUTION:
Camshaft timing gear assembly occasionally shifts to the
retard side abruptly, if the air compression of the advanced
side path is released first. It often causes the breakage of
the lock pin.
(f) Remove the fringe bolt of camshaft timing gear assembly.
NOTICE:
Be sure not to remove the other 4 bolts.
In case of reusing the camshaft timing gear, release
the straight pin lock first, and then install the gear.
17. INSTALL CAMSHAFT TIMING GEAR ASSY
(a) Put the camshaft timing gear assembly and the camshaft
together with the straight pin off the key groove.
(b) Turn the camshaft timing gear assembly clockwise (as
shown in the illustration) while pushing it lightly against
the camshaft. Push further at the position where the pin
gets into the groove.
CAUTION:
Be sure not to turn the camshaft timing gear to the retard
angle side (to the right angle).
Page 2019 of 5135

A62195
Painted Link
Timing Mark
A62196
4123
A62197
Painted Link
Timing Mark
A32124
± ENGINE MECHANICALCAMSHAFT (1ZZ±FE/3ZZ±FE)
14±71
AVENSIS REPAIR MANUAL (RM1018E)
(c) Check that there is no clearance between the gear's
fringe and the camshaft.
(d) Tighten the fringe bolt with the camshaft timing gear fixed.
Torque: 54 Nm (551 kgfcm 40 ftlbf)
(e) Check that the camshaft timing gear assembly can move
to the retard angle side (the right angle) and is locked at
the most retarded position.
18. INSTALL CAMSHAFT
(a) Install the timing chain on the camshaft timing gear with
the painted links aligned with the timing marks on the
camshaft timing gear as shown in the illustration.
(b) Examine the front marks and numbers and tighten the
bolts in the sequence shown in the illustration.
Torque: 13 Nm (133 kgfcm, 10 ftlbf)
(c) Put the camshaft No.2 on the cylinder head with the
painted links of the chain aligned with the timing mark on
the camshaft timing gear.
(d) Tighten the camshaft timing gear set bolt temporarily.
Page 2020 of 5135
A621983124 5 67
A62187
Hold
Tighten
A62185
Mark
Mark
Mark
Timing Chain
Cover Surface
Groove
A62177
Raise
Push
Hook
Pin
14±72
± ENGINE MECHANICALCAMSHAFT (1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
(e) Examine the front marks and numbers and tighten the
bolts in the sequence shown in the illustration.
Torque: 13 Nm (133 kgfcm, 10 ftlbf)
(f) Install the bearing cap No. 1.
Torque: 23 Nm (235 kgfcm, 17 ftlbf)
(g) Hold the camshaft with a wrench, tighten the camshaft
timing gear set bolt.
Torque: 54 Nm (551 kgfcm, 40 ftlbf)
NOTICE:
Be careful not to damage the valve lifter.
(h) Check that the match marks on the 2 camshaft sprockets
are aligned with each other and are aligned with the
painted links of the timing chain as shown in the illustra-
tion. Also, check the timing notch is aligned with the timing
mark º0º of the chain cover.
(i) Install chain tensioner.
(1) Check that the O±ring is clean, and set the hook as
shown in the illustration.
Page 2021 of 5135

A62178
Push
A62180
DisconnectHook
PinTurn
A62181
Plunger
Turn
Push
A11858
A64005
±
ENGINE MECHANICAL CAMSHAFT(1ZZ±FE/3ZZ±FE)
14±73
AVENSIS REPAIR MANUAL (RM1018E)
(2)Apply engine oil to the chain tensioner and install it
with the 2 nuts.
Torque: 9.0 N m (92 kgf cm, 80 in lbf)
NOTICE:
If the hook released the plunger during installation, re±
hook the plunger by the hook to fix it.
(3)Turn the crankshaft counter clockwise, and take thehook off the knock pin to release the plunger.
(4)Turn the crankshaft clockwise, and check that the plunger is extended.
HINT:
If the plunger does not be extended, press the slipper into the
chain tensioner using a screwdriver so that the hook is took off
from the knock pin and let the plunger can be extended.
19.ADJUST VALVE CLEARANCE(See page 14±6)
20. INSTALL V±RIBBED BELT TENSIONER ASSY
(a) Install the V±ribbed belt tensioner with the nut and bolt. Torque:
29 Nm (296 kgf cm, 21 ft lbf) for Nut
69 N m (704 kgf cm, 51 ft lbf) for Bolt
21. INSTALL ENGINE MOUNTING INSULATOR SUB±ASSY RH
(a) Install the engine mounting insulator with the 4 bolts and
2 nuts.
Torque: 52 N m (530 kgf cm, 38 ft lbf)
Page 2022 of 5135
A62182
Seal Packing
A65687
A
A
A
A A A
A A
BB A
A64023
14±74
± ENGINE MECHANICALCAMSHAFT (1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
22. INSTALL CYLINDER HEAD COVER SUB±ASSY
(a) Remove any old packing (FIPG) material.
(b) Apply seal packing to the 2 locations as shown in the il-
lustration.
Seal packing: Part No. 08826±00080 or equivalent
NOTICE:
Remove any oil from the contact surface.
Install the cylinder head cover within 3 minutes after
applying seal packing.
Do not expose the seal to engine oil 2 hours after
installing.
(c) Install the cylinder head cover and 3 cable brackets with
the 9 bolts, 2 seal washers and 2 nuts. Tighten the bolts
and nuts uniformly in the several steps.
Torque:
11 Nm (112 kgfcm, 8 ftlbf) for A
9.0 Nm (92 kgfcm, 80 inlbf) for B
23. INSTALL IGNITION COIL ASSY
(a) Install the 4 ignition coils with the 4 bolts.
Torque: 9.0 Nm (92 kgfcm, 80 in.lbf)
Page 2023 of 5135
A76713
A78459
± ENGINE MECHANICALCAMSHAFT (1ZZ±FE/3ZZ±FE)
14±75
AVENSIS REPAIR MANUAL (RM1018E)
(b) Install the engine wire with the 2 nuts.
Torque: 9.0 Nm (92 kgfcm, 80 in.lbf)
24. INSTALL CYLINDER HEAD COVER NO.2
(a) Install the cylinder head cover with the 2 nuts and 2 clips.
Torque: 7.0 Nm (71 kgfcm, 62 in.lbf)
25. CHECK FOR ENGINE OIL LEAKS
Page 2024 of 5135
141CJ±01
A79321
Clip
Engine Room Side Cover RH
Retainer Clip
Radiator Cover Assy
Clip
Engine Under Cover RH
Engine Under Cover No. 1
Clip
14±60
± ENGINE MECHANICALCAMSHAFT (1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
CAMSHAFT (1ZZ±FE/3ZZ±FE)
COMPONENTS