Page 716 of 2234
141B6±01
A77281
A77378
No. 1 Cylinder TDC/Compression
IN
EX
A77379
No. 4 Cylinder TDC/Compression
IN
EX
14±106
±
ENGINE MECHANICALVALVE CLEARANCE(1AZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
VALVE CLEARANCE(1AZ±FE)
ADJUSTMENT
1.REMOVE RADIATOR SUPPORT OPENING COVER
2.REMOVE ENGINE ROOM COVER SIDE
3.REMOVE ENGINE UNDER COVER RH 4.REMOVE ENGINE COVER SUB±ASSY NO.1
(a)Remove 2 nuts and the engine cover No. 1.
5.REMOVE IGNITION COIL ASSY
(a)Remove 4 bolts and the ignition coils.
6.REMOVE CYLINDER HEAD COVER SUB±ASSY (See page 14±171)
7.SET NO. 1 CYLINDER TO TDC/COMPRESSION (See page 14±171) 8. INSPECT VALVE CLEARANCE
HINT:
Inspect and adjust the valve clearance when the engine is cold.
(a) Check only the valve indicated in the illustration.(1) Using a feeler gauge, measure the clearance be-tween the valve lifter and camshaft.
(2) Record the out±of specification valve clearance measurements. They will be used later to determine
the required replacement adjusting shim.
Valve clearance (Cold):
Intake 0.19 to 0.29 mm (0.0075 to 0.0114 in.)
Exhaust 0.30 to 0.40 mm (0.0118 to 0.0157 in.)
(b) Turn the crankshaft clockwise 1 revolution (360 ) and set
No. 4 cylinder to TDC/compression.
(c) Check only the valve indicated in the illustration. (1) Using a feeler gauge, measure the clearance be-tween the valve lifter and camshaft.
(2) Record the out±of specification valve clearance measurements. They will be used later to determine
the required replacement adjusting shim.
Valve clearance (Cold):
Intake 0.19 to 0.29 mm (0.0075 to 0.0114 in.)
Exhaust 0.30 to 0.40 mm (0.0118 to 0.0157 in.)
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Page 720 of 2234
14±110
±
ENGINE MECHANICALVALVE CLEARANCE(1AZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
(h)Install the camshafts. (See page 14±171)
(i)Install the chain tensioner. (See page 14±171)
10.INSTALL CYLINDER HEAD COVER SUB±ASSY (See page 14±171)
11. INSTALL IGNITION COIL ASSY
Torque: 9.0 N m (92 kgf cm, 80 in. lbf)
12. CHECK FOR ENGINE OIL LEAKS
13. INSTALL ENGINE COVER SUB±ASSY NO.1 Torque: 7.0 N m (71 kgf cm, 62 in. lbf)
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Page 722 of 2234
A64058
A64856
A62185
MarkMark
Mark Timing Chain
Cover Surface
Timing
Notch
A01131
±
ENGINE MECHANICAL VALVE CLEARANCE (1ZZ±FE/3ZZ±FE)
14±7
AVENSIS REPAIR MANUAL (RM1018E)
6. DISCONNECT VENTILATION HOSE NO.2
(a) Disconnect the ventilation hose from the cylinder head
cover.
7. REMOVE CYLINDER HEAD COVER SUB±ASSY
(a) Remove the 9 bolts, 2 seal washers, 2 nuts, 3 clamp brackets and cylinder head cover.
8. REMOVE ENGINE UNDER COVER SUB±ASSY NO.1
9. REMOVE ENGINE UNDER COVER RH
10. SET NO. 1 CYLINDER TO TDC/COMPRESSION
(a) Turn the crankshaft pulley, and align the timing notch with timing mark º0º of the timing chain cover.
(b) Check that the point marks of the camshaft timing sprock- et and VVT timing sprocket are in straight line on the tim-
ing chain cover surface as shown in the illustration.
HINT:
If not, turn the crankshaft 1 revolution (360 ) and align the
marks as above.
11. INSPECT VALVE CLEARANCE
(a) Check the valves indicated in the illustration. (1) Using a feeler gauge, measure the clearance be-
tween the valve lifter and the camshaft.
(2) Record the out±of specification valve clearance measurements. They will be used later to determine
the required replacement valve lifter.
Valve clearance (Cold):
Intake 0.15 to 0.25 mm (0.0059 to 0.0098 in.)
Exhaust 0.25 to 0.35 mm (0.0098 to 0.0138 in.)
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Page 723 of 2234
A01132
A60622
A01045
A64005
14±8
±
ENGINE MECHANICAL VALVE CLEARANCE (1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
(b) Turn the crankshaft 1 revolution (360 ) and set No. 4 cyl-
inder to TDC/compression.
(c) Check the valves indicated in the illustration. (1) Using a feeler gauge, measure the clearance be-
tween the valve lifter and camshaft.
(2) Record the out±of specification valve clearance measurements. They will be used later to determine
the required replacement valve lifter.
Valve clearance (Cold):
Intake 0.15 to 0.25 mm (0.0059 to 0.0098 in.)
Exhaust 0.25 to 0.35 mm (0.0098 to 0.0138 in.)
12. REMOVE FAN AND GENERATOR V BELT
(a) Turn the V±ribbed belt tensioner clockwise slowly and loosen it. Then, remove the fan and generator V belt and
put back the V±ribbed belt tensioner carefully.
13. REMOVE ENGINE MOUNTING INSULATOR SUB±ASSY RH
(a) Place a wooden block on a jack underneath the engine. Remove the 4 bolts and 2 nuts and detach the engine
mounting insulator RH.
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Page 730 of 2234
A62187
Hold
Tighten
A62185
Mark Mark
Mark Timing Chain
Cover Surface
Timing
Notch
A62177
Raise
Push
Hook
Pin
A62178
Push
±
ENGINE MECHANICAL VALVE CLEARANCE (1ZZ±FE/3ZZ±FE)
14±15
AVENSIS REPAIR MANUAL (RM1018E)
(s) Hold the camshaft with a wrench, tighten the camshaft
timing gear set bolt.
Torque: 54 N m (551 kgf cm, 40 ftlbf)
NOTICE:
Be careful not damage the valve lifter.
(t) Check the match marks on the 2 camshaft sprockets are aligned with each other and aligned with the painted links
of the timing chain as shown in the illustration. Also, check
the timing notch is aligned with the timing mark º0º of the
chain cover.
(u) Install chain tensioner. (1) Check that the O±ring is clean, and set the hook asshown in the illustration.
(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 fixit.
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Page 731 of 2234
A62180
DisconnectHook
Pin Turn
A62181
Plunger
Turn
Push
A11858
A64005
14±16
±
ENGINE MECHANICAL VALVE CLEARANCE (1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
(3) Turn the crankshaft counterclockwise, and take the hook 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.
16. 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 ftlbf) for Nut
69 N m (704 kgf cm, 51 ftlbf) for Bolt
17. 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 ftlbf)
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Page 733 of 2234
A76713
A78459
14±18
±
ENGINE MECHANICAL VALVE CLEARANCE (1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
(b) Install the engine wire with the 2 nuts. Torque: 9.0 N m (92 kgf cm, 80 in. lbf)
20. INSTALL CYLINDER HEAD COVER NO.2
(a) Install the cylinder head cover with the 2 nuts and 2 clips. Torque: 7.0 N m (71 kgfcm, 62 in. lbf)
21. CHECK FOR ENGINE OIL LEAKS
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Page 746 of 2234
160AO±01
B10233Hole
±
COOLING WATER PUMP ASSY (1ZZ±FE/3ZZ±FE)
16±1
1ZZ±FE,3ZZ±FE ENGINE REPAIR MANUAL
(RM923E)
WATER PUMP ASSY (1ZZ±FE/3ZZ±FE)
INSPECTION
1. INSPECT WATER PUMP ASSY
(a) Visually check the drain hole for coolant leakage.
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