Control Valve Assembly NISSAN TEANA 2008 User Guide

ENGINE ASSEMBLY
EM-67
< REMOVAL AND INSTALLATION >
C
D
E
F
G
H
I
J
K
L
MA
EM
N
P O
REMOVAL AND INSTALLATION
ENGINE ASSEMBLY
Exploded ViewINFOID:0000000003802272
Removal and InstallationINFOID:0000000003802273
WARNING:
 Situate the vehicle on a flat and solid surface.
1. Upper torque rod 2. Engine mounting insulator (RH) 3. Engine mounting bracket (RH)
4. Engine mounting bracket (front) 5. Engine mounting insulator (front) 6. Vacuum hose
7. Vacuum tube (front) 8. Vacuum hose 9. Engine mounting insulator (LH)
10. Vacuum hose 11. Engine mounting insulator (rear) 12. Engine mounting bracket (rear)
13. Vacuum tube (rear) 14. Gusset 15. Rear torque rod
16. Rear torque rod bracket
A. To transaxle B.To electronic controlled engine mount
control solenoid valveC. VQ25DE
: Vehicle front
Refer to GI-4, "
Components" for symbols in the figure.
JPBIA2195GB

REAR TIMING CHAIN CASE
EM-79
< DISASSEMBLY AND ASSEMBLY >
C
D
E
F
G
H
I
J
K
L
MA
EM
N
P O
REAR TIMING CHAIN CASE
Exploded ViewINFOID:0000000003802281
1.Timing chain tensioner (secondary)
(bank 2)2. Internal chain guide 3.Timing chain tensioner (secondary)
(bank 1)
4. Camshaft sprocket (EXH) 5. O-ring 6. Timing chain (secondary)
7. Timing chain (primary) 8. Camshaft sprocket (INT) 9. Slack guide
10. Timing chain tensioner (primary) 11. Crankshaft sprocket 12. Rear timing chain case
13. Tension guide 14. O-ring 15. O-ring
16. O-ring 17. Front timing chain case 18. Valve timing control cover gasket (bank 1)
JPBIA1638GB

EM-80
< DISASSEMBLY AND ASSEMBLY >
REAR TIMING CHAIN CASE
Disassembly and Assembly
INFOID:0000000003802282
DISASSEMBLY
1. Remove front timing chain case and timing chain. Refer to EM-52, "Exploded View".
2. Remove water pump. Refer to CO-18, "
Exploded View".
3. Remove oil pans (upper and lower) and oil strainer. Refer to EM-38, "
Exploded View".
4. Remove rear timing chain case as follows:
a. Loosen and remove mounting bolts in reverse order as shown in
the figure.
b . C u t l i q u i d g a s k e t u s i n g t h e s e a l c u t t e r [ S S T: K V 1 0 1111 0 0
(J37228)] and remove rear timing chain case.
CAUTION:
 Never remove plate metal cover (1) of oil passage.
 After removal, handle rear timing chain case carefully so
it does not tilt, cant, or warp under a load.
5. Remove O-rings (1) from cylinder block.
6. Remove timing chain tensioners (secondary) from cylinder head as follows, if necessary.
a. Remove camshaft brackets (No. 1). Refer to EM-84, "
Exploded View".
19. Valve timing control cover (bank 1) 20.Intake valve timing control sole-
noid valve (bank 1)21. Seal ring
22. Water pump cover 23. Front oil seal 24. Crankshaft pulley
25. Crankshaft pulley bolt 26.Intake valve timing control sole-
noid valve (bank 2)27. Valve timing control cover (bank 2)
28.Valve timing control cover gasket
(bank 2)
A. Refer to EM-80
Refer to GI-4, "Components" for symbols in the figure.
JPBIA1641ZZ
JPBIA0088ZZ
: Engine front
JPBIA0090ZZ

EM-92
< DISASSEMBLY AND ASSEMBLY >
CAMSHAFT
b. Disconnect ignition coil and injector harness connectors. Refer to EM-49, "Exploded View" and EM-44,
"Exploded View".
3. Remove intake valve timing control solenoid valve. Refer to EM-79, "
Exploded View".
4. Crank engine, and then check that engine oil comes out from
intake valve timing control solenoid valve hole (A). End crank
after checking.
WARNING:
Be careful not to touch rotating parts. (drive belt, idler pul-
ley, and crankshaft pulley, etc.)
CAUTION:
 Prevent splashing by using a shop cloth so as to prevent
the worker from injury from engine oil and so as to prevent engine oil contamination.
 Prevent splashing by using a shop cloth so as to prevent engine oil from being splashed to
engine and vehicle. Especially, be careful no to apply engine oil to rubber parts of drive belt,
engine mounting insulator, etc. Wipe engine oil off immediately if it is splashed.
5. Perform the following inspection if engine oil does not come out from intake valve timing control solenoid
valve oil hole of the cylinder head.
 Remove oil filter, and then clean it. Refer to LU-10, "
Removal and Installation".
 Clean oil groove between oil strainer and intake valve timing control solenoid valve. Refer to LU-2,
"EngineLubricationSystem".
6. Remove components between intake valve timing control solenoid valve and camshaft sprocket (INT),
and then check each oil groove for clogging.
 Clean oil groove if necessary. Refer to LU-2, "
EngineLubricationSystem".
7. After inspection, install removed parts in the reverse order.
Inspection for Leakage
The following are procedures for checking fluids leak, lubricates leak. Before starting engine, check oil/fluid levels including engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to MA-11, "
Fluids and Lubricants".
 Use procedure below to check for fuel leakage.
- Turn ignition switch “ON” (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leak-
age at connection points.
- Start engine. With engine speed increased, check again for fuel leakage at connection points.
 Run engine to check for unusual noise and vibration.
NOTE:
If hydraulic pressure inside timing chain tensioner drops after removal/installation, slack in the guide may
generate a pounding noise during and just after engine start. However, this is normal. Noise will stop after
hydraulic pressure rises.
 Warm up engine thoroughly to check there is no leakage of fuel, or any oil/fluids including engine oil and
engine coolant.
 Bleed air from lines and hoses of applicable lines, such as in cooling system.
 After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to the
specified level, if necessary.
Summary of the inspection items:
*: Transmission/transaxle/CVT fluid, power steering fluid, brake fluid, etc.1 : Valve timing control cover (bank 2)
: Engine front
JPBIA1783ZZ
Items Before starting engine Engine running After engine stopped
Engine coolant Level Leakage Level
Engine oil Level Leakage Level
Other oils and fluid* Level Leakage Level
Fuel Leakage Leakage Leakage

ST-28
< ON-VEHICLE REPAIR >
POWER STEERING OIL PUMP
POWER STEERING OIL PUMP
Exploded ViewINFOID:0000000003806326
REMOVAL
DISASSEMBLY
1. Power steering oil pump
: Vehicle front
Refer to GI-4, "
Components" for symbols in the figure.
JSGIA0326GB
1. Pulley 2. Oil seal 3. Front bracket
4. Suction pipe 5. O-ring 6. Body assembly
7. Flow control valve spring 8. Flow control valve 9. Flow control valve sub assembly
JSGIA0408GB

ST-30
< ON-VEHICLE REPAIR >
POWER STEERING OIL PUMP
1. Remove rear cover mounting bolts, and then remove rear cover from body assembly.
CAUTION:
 Fix oil pump with a vise if necessary.
 Use copper plates when fixing with a vise.
2. Remove O-ring from body assembly.
3. Remove rear side plate from cartridge, and then remove Teflon ring and O-ring from rear side plate.
4. Remove rotor snap ring using a snap ring pliers, and remove
pulley from body assembly.
CAUTION:
Remove pulley so as not to be damaged when removing
rotor snap ring.
5. Remove cartridge and front side plate.
6. Remove flow control valve (1), flow control valve spring (2) and
flow control valve sub assembly (3) from body assembly (4).
CAUTION:
Never drop and damage flow control valve A and flow con-
trol valve B assembly when removing.
7. Remove oil seal from body assembly.
8. Remove mounting bolt of suction pipe, and then remove suction
pipe from body assembly.
9. Remove O-ring from body assembly.
10. Remove bracket mounting bolts, and then remove bracket from
body assembly.
ASSEMBLY
1. Apply recommended grease to oil seal lips. Apply recommended
fluid to around oil seal, and then install oil seal to body assembly
using a drift (SST: ST35300000).
CAUTION:
 Fix oil pump with a vise if necessary.
 Use copper plates when fixing with a vise.
2. Install bracket to body assembly.
3. If dowel pin has been removed, insert it into body assembly by
hand. If it cannot be inserted by hand, lightly tap with a hammer.
4. Install flow control valve (1), flow control valve spring (2) and
flow control valve sub assembly (3) to body assembly (4).
SGIA0059E
JSGIA0365ZZ
STC0914D
JSGIA0365ZZ

POWER STEERING OIL PUMP
ST-31
< ON-VEHICLE REPAIR >
C
D
E
F
H
I
J
K
L
MA
B
ST
N
O
P
5. Install front side plate (3) with dowel pin (2) on flow control valve
(1) side as shown in the figure aligning with front side plate cut-
out (A) to body assembly (4).
6. Install cam ring as shown in the figure.
7. Install pulley to body assembly.
CAUTION:
Never damage oil seal when installing pulley.
8. Install rotor so that mark faces body assembly, and then install it
to pulley shaft.
9. Install vane to rotor so that arc of vane faces cam ring side.
10. Install rotor snap ring to slit of pulley shaft using a hammer and a
10 mm (0.39 in) box.
CAUTION:
 Never damage rotor and pulley shaft.
 Oil pump assembly must be replaced if rotor is damaged.
SGIA1189E
SGIA0612E
SGIA0989E
SGIA0613E
SGIA0063E

ST-32
< ON-VEHICLE REPAIR >
POWER STEERING OIL PUMP
11. Install rear side plate with dowel pin A on flow control valve side
as shown in the figure aligning with rear side plate cutout B to
cartridge.
12. Apply recommended fluid to O-ring, and then install O-ring to
body assembly.
13. Apply recommended fluid to O-ring, and then install O-ring to
rear side plate.
14. Apply recommended fluid to Teflon ring, and then install Teflon
ring to rear side plate.
15. Install rear cover to body assembly.
16. Apply recommended fluid to O-ring, and then install O-ring to
body assembly.
17. Install suction pipe to body assembly.
InspectionINFOID:0000000003806329
RELIEF OIL PRESSURE
CAUTION:
Make sure that belt tension is normal before starting the following procedure.
1. Connect the oil pressure gauge (SST: KV48103500) and the oil
pressure gauge adapter (SST: KV48102500) between oil pump
discharge connector and high-pressure hose. Bleed air from the
hydraulic circuit while opening valve fully. Refer to ST-7,
"Inspection".
2. Start the engine. Run the engine until oil temperature reaches
50 to 80°C (122 to 176°F).
CAUTION:
 Leave the valve of the oil pressure gauge fully open while
starting and running the engine. If engine is started with
the valve closed, the hydraulic pressure in oil pump goes
up to the relief pressure along with unusual increase of oil
temperature.
 Be sure to keep hose clear of belts and other parts when
engine is started.
3. Fully close the oil pressure gauge valve with engine at idle and
measure the relief oil pressure.
CAUTION:
Never keep valve closed for 10 seconds or longer.
4. Open the valve slowly after measuring. Repair oil pump if the relief oil pressure is outside the standard.
Refer to ST-29, "
Disassembly and Assembly".
5. Disconnect the oil pressure gauge from hydraulic circuit.
6. When installing eye bolt (1) and copper washers (2) to oil pump
(3), refer to the figure.
CAUTION:
 Never reuse copper washer.
 Apply power steering fluid or equivalent to around copper
washer, then install eye bolt.
 Install eye bolt with eye joint (assembled to high pressure
hose) (B) protrusion (A) facing with pump side cutout, and
then tighten it to the specified torque after tightening by
hand. Refer to ST-34, "
Exploded View".
 Securely insert harness connector to pressure sensor.
PGIA0035E
Standard
Relief oil pressure : Refer to ST-38, "
Relief Oil
Pressure".
SGIA1225E
SGIA1379E

POWER STEERING OIL PUMP
ST-33
< ON-VEHICLE REPAIR >
C
D
E
F
H
I
J
K
L
MA
B
ST
N
O
P
7. Check fluid level, fluid leakage and air bleeding hydraulic system after the installation. Refer to ST-7,
"Inspection".
BEFORE DISASSEMBLY
Disassemble oil pump only when the following malfunctions occur.
 If oil leakage is found on oil pump.
 Oil pump pulley is damaged or deformed.
 Performance of oil pump is low.
AFTER DISASSEMBLY
Body Assembly and Rear Cover Inspection
 Check body assembly and rear cover for internal damage. Replace rear cover if it is damaged. Replace oil
pump assembly if body assembly is damaged.
Cartridge Assembly Inspection
 Check cam ring, rotor and vane for damage. Replace cartridge assembly if necessary.
Side Plate Inspection
 Check side plate for damage. Replace side plate if necessary.
Flow Control Valve Inspection
 Check flow control valve and spring for damage. Replace if necessary.

EPS SYSTEM
STC-3
< FUNCTION DIAGNOSIS >
C
D
E
F
H
I
J
K
L
MA
B
STC
N
O
P
FUNCTION DIAGNOSIS
EPS SYSTEM
System DiagramINFOID:0000000003893522
CONTROL DIAGRAM
CROSS-SECTIONAL VIEW
System DescriptionINFOID:0000000003893523
• The EPS system controls the power steering solenoid valve through the power steering control unit.
JSGIA0119GB
1. Combination meter 2. Power steering control unit 3. Power steering solenoid valve
4. Steering gear assembly 5. Gear housing assembly 6. Gear sub-assembly
7. Pinion 8. Power steering oil pump 9. Reservoir tank
JSGIA0376ZZ