valve clearance (3mz-fe)

valve clearance (3mz-fe)
14-127
ENGINE MECHANICAL
-
VALVE CLEARANCE (3MZ-FE)
VALVE CLEARANCE (3MZ-FE)
141PH-01
ADJUSTMENT
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
DRAIN ENGINE COOLANT (See page 16-26 )
REMOVE FR WIPER ARM LH (See page 66-7 )
REMOVE FR WIPER ARM RH (See page 66-7 )
REMOVE COWL TOP VENTILATOR LOUVER SUB-ASSY (See page 66-7 )
REMOVE WINDSHIELD WIPER LINK ASSY (See page 66-7 )
REMOVE COWL PANEL SUB-ASSY
REMOVE FRONT FENDER APRON SEAL RH
REMOVE FRONT SUSPENSION BRACE SUB-ASSY UPPER CENTER
REMOVE V-BANK COVER SUB-ASSY (See page 14-149 )
REMOVE AIR CLEANER CAP SUB-ASSY
REMOVE EMISSION CONTROL VALVE SET (See page 14-149 )
REMOVE INTAKE AIR SURGE TANK (See page 14-149 )
REMOVE RADIATOR HOSE INLET
REMOVE IGNITION COIL ASSY
REMOVE CYLINDER HEAD COVER SUB-ASSY (See page 14-173 )
REMOVE CYLINDER HEAD COVER SUB-ASSY LH (See page 14-173 )
17.
(a)
INSPECT VALVE CLEARANCE
Turn the crankshaft pulley, and align the timing notch with
timing mark 0 of the No. 1 timing belt cover.
(b) Check that the valve lifters on the No. 1 (IN and EX) are
both loose.
If not, turn the crankshaft 1 revolution (360) and align the mark
as above.
P18805
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
Author:
Date:
2620
14-128
ENGINE MECHANICAL
(c)
RH Bank
3 3
EX
IN
-
Check the valves indicated in the illustration on the left.
(1) Using a feeler gauge, measure the clearance between the valve lifter and camshaft.
Valve clearance (Cold):
Item
Specified Condition
Intake
0.15 to 0.25 mm (0.006 to 0.010 in.)
Exhaust
0.25 to 0.35 mm (0.010 to 0.014 in.)
(2)
1 1
Front
LH Bank
VALVE CLEARANCE (3MZ-FE)
6 6
Record valve clearance measurements that are out
of the specified range. These measurements will be
used later to determine the size of the adjustment
shim to be installed.
IN
EX
2 2
A78666
(d)
RH Bank
5 5
EX
IN
3 3
LH Bank
Turn the crankshaft 2/3 of a revolution (240), and check
the valves indicated in the illustration on the left.
(1) Using a feeler gauge, measure the clearance between the valve lifter and camshaft.
Valve clearance (Cold):
Item
Specified Condition
Intake
0.15 to 0.25 mm (0.006 to 0.010 in.)
Exhaust
0.25 to 0.35 mm (0.010 to 0.014 in.)
(2)
Front
2 2
Record valve clearance measurements that are out
of the specified range. These measurements will be
used later to determine the size of the adjustment
shim to be installed.
IN
EX
4 4
A78667
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
Author:
Date:
2621
14-129
ENGINE MECHANICAL
(e)
RH Bank
1 1
EX
IN
Front
4 4
VALVE CLEARANCE (3MZ-FE)
Turn the crankshaft 2/3 of a revolution (240), and check
the valves indicated in the illustration on the left.
(1) Using a feeler gauge, measure the clearance between the valve lifter and camshaft.
Valve clearance (Cold):
Item
Specified Condition
Intake
0.15 to 0.25 mm (0.006 to 0.010 in.)
Exhaust
0.25 to 0.35 mm (0.010 to 0.014 in.)
(2)
5 5
LH Bank
-
Record valve clearance measurements that are out
of the specified range. These measurements will be
used later to determine the size of the adjustment
shim to be installed.
IN
EX
6 6
A78668
Upward
18.
(a)
(b)
ADJUST VALVE CLEARANCE
Turn the camshaft so that the cam lobe faces upward.
Turn the valve lifter with a screwdriver so that the notches
are perpendicular to the camshaft.
(c)
Using SST (A), press down the valve lifter and place SST
(B) between the camshaft and valve lifter. Remove SST
(A).
SST 09248-55040 (09248-05410, 09248-05420)
Notch
A78669
Front of No. 1 and No. 2 Cylinders
SST (A)
HINT:
SST (B)
7
Apply SST (B) at a slight angle on the side marked with
”9” or ”7” at the position shown in the illustration.
When SST (B) is inserted too deeply, it will get pinched by
the shim. To prevent it from being stuck, insert it gently
from the intake side at a slight angle.
Others
SST (A)
SST (B)
9
A78670
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
Author:
Date:
2622
14-130
ENGINE MECHANICAL
-
VALVE CLEARANCE (3MZ-FE)
(d)
Using a small screwdriver and magnetic finger, remove
the adjusting shim.
(e)
Using a micrometer, measure the thickness of the removed shim.
Calculate the thickness of a new shim so that the valve
clearance comes within the specified value.
SST (B)
Magnetic Finger
A78671
(f)
EM0494
(g)
A
Thickness of new shim
B
Thickness of used shim
C
Measured valve clearance
Specified value (Cold):
Intake A = B + (C - 0.20 mm (0.0079 in.))
Exhaust A = B + (C - 0.30 mm (0.0118 in.))
Select a new shim with a thickness as close as possible
to the calculated values.
EXAMPLE (Intake):
Measured valve clearance = 0.45 mm (0.0177 in.)
0.45 mm (0.0177 in.) - 0.20 mm (0.0079 in.) = 0.25 mm (0.0098 in.)
(Measured - Specification = Excess clearance)
Used shim measurement = 2.80 mm (0.1102 in.)
0.25 mm (0.0098 in.) + 2.80 mm (0.1102 in.) = 3.05 mm (0.1201 in.)
(Excess clearance + Used shim = Ideal new shim)
Closest new shim = 3.05 mm (0.1201 in.)
Select No. 12 shim
HINT:
Shims are available in 17 sizes in increments of 0.05 mm
(0.0020 in.), from 2.50 mm (0.0984 in.) to 3.30 mm
(0.1299 in.).
Refer to adjusting shim selection chart on the following 2
pages.
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
Author:
Date:
2623
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
Adjusting Shim Selection Chart (Intake)
Installed shim thickness
mm (in.)
Measured clearance
mm (in.)
ENGINE MECHANICAL
-
Author:
Shim
No.
Thickness
Shim
No.
mm (in.)
Thickness
VALVE CLEARANCE (3MZ-FE)
New shim thickness
Date:
HINT:
A shim’s thickness is written on its face in
millimeters.
14-131
V00719
2624
Intake valve clearance (Cold):
0.15 to 0.25 mm (0.006 to 0.010 in.)
EXAMPLE:
The 2.800 mm (0.1102 in.) shim is installed, and the measured
clearance is 0.450 mm (0.0177 in.). Replace the 2.800 mm
(0.1102 in.) shim with a new No. 12 shim.
14-132
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
Adjusting Shim Selection Chart (Exhaust)
Installed shim thickness
mm (in.)
Measured clearance
mm (in.)
ENGINE MECHANICAL
-
Author:
Shim
No.
Thickness
Shim
No.
mm (in.)
Thickness
Date:
V00720
2625
Exhaust valve clearance (Cold):
0.25 to 0.35 mm (0.010 to 0.014 in.)
EXAMPLE:
The 2.800 mm (0.1102 in.) shim is installed, and the measured
clearance is 0.450 mm (0.0177 in.). Replace the 2.800 mm
(0.1102 in.) shim with a new No. 10 shim.
HINT:
A shim’s thickness is written on its face in
millimeters.
VALVE CLEARANCE (3MZ-FE)
New shim thickness
14-133
ENGINE MECHANICAL
SST (A)
(h)
(i)
SST (B)
(j)
-
VALVE CLEARANCE (3MZ-FE)
Place a new adjusting shim on the valve lifter with the imprinted number facing down.
Press down the valve lifter with SST (A), and remove SST
(B).
SST 09248-55040 (09248-05410, 09248-05420)
Recheck the valve clearance.
A78672
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
31.
32.
33.
34.
35.
INSTALL CYLINDER HEAD COVER SUB-ASSY (See page 14-173 )
INSTALL CYLINDER HEAD COVER SUB-ASSY LH (See page 14-173 )
INSTALL IGNITION COIL ASSY
Torque: 8.0 N⋅m (82 kgf⋅cm, 71 in.⋅lbf)
INSTALL RADIATOR HOSE INLET
INSTALL INTAKE AIR SURGE TANK (See page 14-149 )
INSTALL EMISSION CONTROL VALVE SET (See page 14-149 )
INSTALL AIR CLEANER CAP SUB-ASSY
CONNECT VACUUM HOSES (See page 14-149 )
INSTALL V-BANK COVER SUB-ASSY (See page 14-149 )
INSTALL FRONT SUSPENSION BRACE SUB-ASSY UPPER CENTER
Torque: 80 N⋅m (816 kgf⋅cm, 59 ft⋅lbf)
INSTALL COWL PANEL SUB-ASSY
INSTALL WINDSHIELD WIPER LINK ASSY (See page 66-7 )
INSTALL COWL TOP VENTILATOR LOUVER SUB-ASSY (See page 66-7 )
INSTALL FR WIPER ARM LH (See page 66-7 )
INSTALL FR WIPER ARM RH (See page 66-7 )
ADD ENGINE COOLANT (See page 16-26 )
CHECK FOR ENGINE COOLANT LEAKS (See page 16-20 )
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
Author:
Date:
2626
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