Downloaded from www.Manualslib.com manuals search engine 1D-4 Engine Mechanical:
Oil Control Valve
The oil control valve switches and adjusts the hydraulic
pressure applied to the cam timing sprocket by moving
the spool valve (1) according to the duty pulse signals
output from the ECM. By this operation, the intake valve
timing is varied continuously. Signals output from the
ECM are the duty pulse of about 240 Hz.
Cam Timing Sprocket
The cam timing sprocket is equipped with the chambers
for timing advancing (2) and retarding (3) which are
separated by the rotor (5). The rotor rotates receiving the
hydraulic pressure applied to both the chambers. The
sprocket (1) is installed on the housing (4) and the rotor
is secured on the intake camshaft by fastening the bolts.
Therefore, the actuation of the rotor makes the phase
difference between the sprocket and intake camshaft.
Timing Advancing
When the duty ratio of the signal output from the ECM is
heavy, the spool valve (4) of the oil control valve moves
to the left (opposite direction against the coil (5)). By this
spool valve movement, the pressurized oil (1) is led into
the chambers for timing advancing and the oil in the
chambers for timing retarding is drained. This operations
actuate the rotor (3) and result in the advanced timing of
the intake valve.Timing Holding
When the duty ratio of the signal output from the ECM
shows that of holding, the spool valve of the oil control
valve is located at hold position. Because this condition
generates no oil pressure changes in both chambers,
the rotor is fixed at a target position.
Timing Retarding
When the duty ratio of the signal output from the ECM is
light, the spool valve of the oil control valve moves to the
right (head for the coil). By this spool valve movement,
the pressurized oil is led into the chambers for timing
retarding and the oil in the chambers for timing
advancing is drained. This operations actuate the rotor
and result in the retarded timing of the intake valve.
6. Seal
2. Drain
1
I5RW0C140034-01
12
3 4
5
6
I3RH0B140004-01
1
2
5
4
3
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I5RW0C140036-01
I5RW0C140037-01
Downloaded from www.Manualslib.com manuals search engine Engine Mechanical: 1D-7
7) Install air cleaner assembly with air suction hose
referring to “Air Cleaner Assembly Removal and
Installation”.
8) Run engine at specified idle speed and read vacuum
gauge. Vacuum should be within specification.
Vacuum specification (at sea level)
59 – 73 kPa (45 – 55 cmHg, 17.7 – 21.6 in.Hg) at
specified idle speed
9) After checking, disconnect special tool (Vacuum
gauge) from PCV valve.
10) Detach blind cap from PCV valve.
11) Install air cleaner assembly with air suction hose
referring to “Air Cleaner Assembly Removal and
Installation”.
Valve Lash (Clearance) InspectionS6RW0D1404003
1) Remove negative cable at battery.
2) Remove cylinder head cover referring to “Cylinder
Head Cover Removal and Installation”.
3) Remove right side engine under cover, if necessary.
4) Using 17 mm wrench, turn crankshaft pulley (1)
clockwise until cam lobes (2) become perpendicular
to shim faces (3) at valves “1” and “7” as shown in
figure.
5) Check valve lashes with thickness gauge (4)
according to the following procedure.
a) Check valve lashes at valves “1” and “7”.
b) Turn camshafts by 90° (by turning crankshaft
with wrench).
c) Make sure that cam lobes are perpendicular to
shim faces at valves to be checked (in this case,
“3” and “8”), if not, adjust it by turning crankshaft.
Check valve lashes.
d) In the same manner as b) – c), check valve
lashes at valves “4” and “6”.
e) In the same manner as b) – c) again, check
valve lashes at valves “2” and “5”.
If valve lash is out of specification, record valve lash and
adjust it to specification by replacing shim.
Valve clearance specification
When cold (Coolant temperature is 15 – 25 °C (59 –
77 °F)):
• Intake: 0.18 – 0.22 mm (0.007 – 0.009 in.)
• Exhaust: 0.28 – 0.32 mm (0.011 – 0.013 in.)
When hot (Coolant temperature is 60 – 68 °C (140 –
154 °F)):
• Intake: 0.21 – 0.27 mm (0.008 – 0.011 in.)
• Exhaust: 0.30 – 0.36 mm (0.012 – 0.014 in.)Replacement of Shim
1) Close the valve whose shim (2) is to be replaced by
turning crankshaft, then turn tappet (3) till its cut
section (1) faces inside as shown in figure.
I3RM0A140004-01
I2RH0B140006-01
Downloaded from www.Manualslib.com manuals search engine 1D-8 Engine Mechanical:
2) Lift down the valve by turning crankshaft to 360°.
3) Hold tappet at that position using special tool as
follows.
a) Remove its housing bolts.
b) Check housing No. and select special tool
corresponding to housing No., referring to
“Special tool selection table”.
Special tool selection table
c) Hold down the tappet so as not to contact the
shim by installing special tool on camshaft
housing with housing bolt (1) tighten housing
bolts by hand.
Special tool
(A): 09916–67020
(A): 09916–670214) Turn camshaft by approximately 90° clockwise and
remove shim (3).
WARNING!
Never put in the hand between camshaft and
tappet.
5) Using a micrometer (2), measure the thickness of
the removed shim (1), and determine replacement
shim by calculating the thickness of new shim with
the following formula and table.
Shim thickness specification
Intake side:
A = B + C – 0.20 mm (0.008 in.)
Exhaust side:
A = B + C – 0.30 mm (0.012 in.)
A: Thickness of new shim
B: Thickness of removed shim
C: Measured valve clearance
For example of intake side:
When thickness of removed shim is 2.40 mm (0.094
in.), and measured valve clearance is 0.45 mm
(0.018 in.).
A = 2.40 mm (0.094 in.) + 0.45 mm (0.018 in.) – 0.20
mm (0.008 in.) = 2.65 mm (0.104 in.)
Calculated thickness of new shim = 2.65 mm (0.104
in.) No. on camshaft
housingEmbossed mark on special
tool
I2 IN2
I3, I4, I5 IN345
E2 EX2
E3, E4, E5 EX345A: I: Intake side or E: Exhaust side
B: Position from timing chain side
C: Pointing to timing chain side
I2RH0B140011-01
I5RW0C140003-01
1. Special tool 2. Magnet
I2RH0B140013-01
I2RH0B140014-01
Downloaded from www.Manualslib.com manuals search engine Engine Mechanical: 1D-9
6) Select new shim No. (1) with a thickness as close as
possible to calculated value.
Available new shims No.
7) Install new shim facing shim No. side with tappet.8) Lift valve by turning crankshaft counterclockwise (in
opposite direction against above Step 4)) and
remove special tool.
Special tool
(A): 09916–67020
(A): 09916–67021
9) Install camshaft housing (1) and tighten bolts to
specified torque.
Tightening torque
Camshaft housing bolt (a): Tighten 11 N⋅m (1.1
kgf-m, 8.0 lb-ft) by the specified procedure
10) Check valve clearance again after adjusting it.
11) After checking and adjusting all valves.
12) Install cylinder head cover referring to “Cylinder
Head Cover Removal and Installation”. Thickness mm
(in.)Shim No.Thickness mm
(in.)Shim No.
2.175 (0.0856) 218 2.600 (0.1024) 260
2.200 (0.0866) 220 2.625 (0.1033) 263
2.225 (0.0876) 223 2.650 (0.1043) 265
2.250 (0.0886) 225 2.675 (0.1053) 268
2.275 (0.0896) 228 2.700 (0.1063) 270
2.300 (0.0906) 230 2.725 (0.1073) 273
2.325 (0.0915) 233 2.750 (0.1083) 275
2.350 (0.0925) 235 2.775 (0.1093) 278
2.375 (0.0935) 238 2.800 (0.1102) 280
2.400 (0.0945) 240 2.825 (0.1112) 283
2.425 (0.0955) 243 2.850 (0.1122) 285
2.450 (0.0965) 245 2.875 (0.1132) 288
2.475 (0.0974) 248 2.900 (0.1142) 290
2.500 (0.0984) 250 2.925 (0.1152) 293
2.525 (0.0994) 253 2.950 (0.1161) 295
2.550 (0.1004) 255 2.975 (0.1171) 298
2.575 (0.1014) 258 3.000 (0.1181) 300
I2RH0B140015-01
1. Tappet 2. Camshaft
(A)2
1
I3RM0A140006-01
I2RH0B140149-01
Downloaded from www.Manualslib.com manuals search engine Engine Mechanical: 1D-17
Engine Assembly Removal and InstallationS6RW0D1406013
Removal
1) Relieve fuel pressure according to “Fuel Pressure
Relief Procedure in Section 1G”.
2) Disconnect negative and positive cable at battery.
3) Disconnect ECM connectors.
4) Remove battery and battery tray with ECM.
5) Remove right and left side engine under covers.
6) Remove A/C compressor belt by referring to
“Compressor Drive Belt Removal and Installation in
Section 7B” or “Compressor Drive Belt Removal and
Installation in Section 7B”.
7) Drain engine oil referring to “Engine Oil and Filter
Change in Section 0B”.
8) Drain transaxle oil referring to “Manual Transaxle Oil
Change in Section 5B” or “A/T Fluid Change in
Section 5A”.
9) Drain transfer oil referring to “Transfer Oil Change in
Section 3C”.
10) Drain coolant referring to “Cooling System Draining
in Section 1F”
11) Remove air cleaner assembly referring to “Air
Cleaner Assembly Removal and Installation”.
12) With hose connected, detach A/C compressor from
its bracket referring to “Compressor Assembly
Removal and Installation in Section 7B” or
“Compressor Assembly Removal and Installation in
Section 7B”.
CAUTION!
Suspend removed A/C compressor at a place
where no damage will be caused during
removal and installation of engine assembly.
13) Remove cylinder upper cover (1).14) Disconnect the following electric wires/connectors
and each clamps.
• TP sensor (1)
• MAP sensor (2)
• ECT sensor (3)
•EGR valve (4)
• CMP sensor (5)
• Ignition coil assembly (6)
• Injector (7)
•HO2S (8)
• Oil control valve (9) (for engine with VVT system)
• Engine oil pressure switch (10)
• CKP sensor (12)
• Knock sensor (13)
• Generator (14)
• Starting motor (15)
• Ground terminal (16) from cylinder block
• Battery ground cable (17) from transaxle
• Back-up light switch (18) (for M/T model)
• Torque sensor (19)
• P/S motor (20)
• Output shaft speed sensor (VSS) (29) (for A/T
model)
• Solenoid valve (30) (for A/T model)
• Transmission range sensor (31) (for A/T model)
• Input shaft speed sensor (32) (for A/T model)
15) Disconnect the following cables, and remove control
cable bracket (23)
• Gear select control cable (21) (for M/T model)
• Gear shift control cable (22) (for M/T model)
• A/T select cable (33) (for A/T model)
16) Disconnect the following hoses.
• Brake booster hose (24) from intake manifold
• Radiator inlet and outlet hoses (25) from radiator
• Heater inlet and outlet hoses (26) from heater
core
• Fuel feed hose (27) from fuel feed pipe
• Fuel vapor hose (11) from fuel vapor pipe
• Clutch hose (28) from transaxle (for M/T model)
• A/T fluid cooler hoses (for A/T model)
F: Vehicle forward 8. Engine front mounting bracket : 55 N⋅m (5.5 kgf-m, 40.0 lb-ft)
1. Engine right mounting bracket 9. Engine front mounting
: Be sure to direct yellow mark to forward.: 95 N⋅m (9.5 kgf-m, 69.0 lb-ft)
2. Engine right mounting 10. Transfer : 65 N⋅m (6.5 kgf-m, 47.0 lb-ft)
3. Engine left mounting bracket 11. Suspension frame : 25 N⋅m (2.5 kgf-m, 18.0 lb-ft)
1
I5RW0A140009-01
Downloaded from www.Manualslib.com manuals search engine 1D-18 Engine Mechanical:
17) Remove oil pressure switch bracket (1).
18) Remove suspension control arm referring to
“Suspension Control Arm / Bushing Removal and
Installation in Section 2B”.
19) Disconnect right and left drive shaft joints from
differential gear referring to “Front Drive Shaft
Assembly Removal and Installation in Section 3A”.
20) Remove exhaust No.1, No.2 and center pipes
referring to “Exhaust System Components in Section
1K”.
21) Disconnect propeller shaft referring to “Propeller
Shaft Assembly Removal and Installation in Section
3D” (for 4WD model).
22) Disconnect steering lower shaft from pinion shaft
referring to “Steering Lower Shaft Removal and
Installation in Section 6B”.
23) Fix radiator to body with rope in order to avoid the
radiator fall off when front lower cross member
lowered.
24) Support front suspension frame, front lower cross
member and oil pan using jack at hatched parts (1)
indicated in figure.
[A]: View A [C]: For A/T model
6
3 45
1 7 7
2
8
9
10
A
15
14
16
20 19
26
24
27
12
13 [A]
11
34
232122
25
17 2818 [B] [C]
2930
31
32
17
33
I5RW0C140010-01
[B]: For M/T model 34. steering gear box
2. Exhaust manifold
1
2
I5RW0A140011-01
11
I5RW0A140012-01
Downloaded from www.Manualslib.com manuals search engine 1D-20 Engine Mechanical:
6) Install engine right mounting bracket (1) and engine
left mounting bush bolt (2), and then tighten bolt and
nuts to specified torque.
Tightening torque
Engine right mounting bracket nut (a): 65 N·m (
6.5 kgf-m, 47.0 lb-ft)
Engine right mounting bush bolt (b): 55 N·m (5.5
kgf-m, 40.0 lb-ft)
Engine left mounting bush bolt (c): 85 N·m (8.5
kgf-m, 61.5 lb-ft)
7) Install suspension frame mounting bolts (1) and front
lower cross member bolts (2). And then tighten bolts
to specified torque.
Tightening torque
Suspension frame mounting bolt (a): 150 N·m (
15.0 kgf-m, 108.5 lb-ft)
Front lower cross member bolt (b): 55 N·m (5.5
kgf-m, 40.0 lb-ft)8) Connect steering lower shaft from pinion shaft
referring to “Steering Lower Shaft Removal and
Installation in Section 6B”.
9) Connect propeller shaft referring to “Propeller Shaft
Assembly Removal and Installation in Section 3D”
(for 4WD model)
10) Install exhaust No.1, No.2 and center pipes referring
to “Exhaust System Components in Section 1K”.
11) Reverse disconnected hoses, cables and electric
wires for connection noting the following.
• Tighten bolts and nuts to specified torque.
Tightening torque
Starting motor terminal nut (a): 11 N·m (1.1 kgf-
m, 8.0 lb-ft)
Generator terminal nut (b): 5 N·m (0.5 kgf-m, 4.0
lb-ft)
Battery ground bolt (c): 25 N·m (2.5 kgf-m, 18.0
lb-ft)
Ground terminal bolt (d): 11 N·m (1.1 kgf-m, 8.0
lb-ft)
1
(b)(a)
2,(c)
I5RW0C140031-01
2,(b)
1,(a)
I5RW0A140016-01
[A]: For M/T model [B]: For A/T model
(d)
(a)
(b)
(c)
(c)
[A]
[B]
I5RW0C140013-02
Downloaded from www.Manualslib.com manuals search engine Engine Mechanical: 1D-21
12) Install oil pressure switch bracket (1).
13) Connect right and left drive shaft joints to differential
gear referring to “Front Drive Shaft Assembly
Removal and Installation in Section 3A”.
14) Install suspension control arm referring to
“Suspension Control Arm / Bushing Removal and
Installation in Section 2B”.
15) Install cylinder upper cover (1).16) Install A/C compressor to its bracket (if equipped)
referring to “Compressor Assembly Removal and
Installation in Section 7B” or “Compressor Assembly
Removal and Installation in Section 7B”.
17) Adjust A/C compressor drive belt referring to
“Compressor Drive Belt Removal and Installation in
Section 7B” or “Compressor Drive Belt Removal and
Installation in Section 7B”.
18) Install air cleaner assembly referring to “Air Cleaner
Assembly Removal and Installation”.
19) Check to ensure that all removed parts are back in
place. Reinstall any necessary parts which have not
been reinstalled.
20) Refill cooling system with coolant referring to
“Cooling System Flush and Refill in Section 1F”.
21) Refill engine with engine oil referring to “Engine Oil
and Filter Change in Section 0B”.
22) Refill transaxle oil referring to “Manual Transaxle Oil
Change in Section 5B” or “A/T Fluid Change in
Section 5A”.
23) Refill transfer oil referring to “Transfer Oil Change in
Section 3C”.
24) Install battery and battery tray with ECM.
25) Connect ECM wire harness.
26) Connect positive and negative cable at battery.
27) Install right and left side engine under covers.
28) Verify that there is no fuel leakage, coolant leakage,
oil leakage and exhaust gas leakage at each
connection.
2. Exhaust manifold
1
2
I5RW0A140011-01
1
I5RW0A140009-01