2003 NISSAN TEANA sensor

ENGINE ASSEMBLY
EM-225
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Vehicle Underbody
1. Remove front drive shafts (right and left sides). Refer to FAX-8, "FRONT DRIVE SHAFT" .
2. Remove front exhaust tube. Refer to EX-2, "
EXHAUST SYSTEM" .
3. Disconnect steering lower joint at power steering gear assembly side, and release steering lower shaft.
Refer to PS-17, "
POWER STEERING GEAR AND LINKAGE" .
4. Disconnect front stabilizer connecting rod. Refer to FSU-16, "
STABILIZER BAR" .
5. Disconnect power steering piping at a point between vehicle and engine. Refer to PS-39, "
HYDRAULIC
LINE" .

Install plug to avoid leakage of power steering fluid.
6. Remove crankshaft position sensor (POS).
CAUTION:

Handle carefully to avoid dropping and shocks.

Do not disassemble.

Do not allow metal powder to adhere to magnetic part at sensor tip.

Do not place sensor in a location where it is exposed to magnetism.
Removal Work
1. Install engine slingers into front of cylinder head (right bank) and
rear of cylinder head (left bank).
2. Lift with hoist and secure engine in position.
3. Use manual lift table caddy (commercial service tool) or equiva-
lently rigid tool such as transmission jack. Securely support bot-
tom of front suspension member, and simultaneously adjust
hoist tension.
CAUTION:
Put a piece of wood or something similar as the supporting
surface, secure a completely stable condition.
4. Separate engine mounting insulator (RH) and engine mounting bracket (RH).
5. Remove engine mounting (LH) through-bolt. (VQ23DE)
PBIC2483E
PBIC2484E

CYLINDER BLOCK
EM-229
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DISASSEMBLY
NOTE:
Show VQ35DE (with main bearing beam, connecting rod bearing cap is tighten by bolts) as an example unless
the figure includes specification.
1. Remove engine assembly from vehicle, and separate front suspension member and transaxle from
engine. Refer to EM-223, "
ENGINE ASSEMBLY" .
2. Remove exhaust manifolds (right and left banks). Refer to EM-140, "
EXHAUST MANIFOLD AND THREE
WAY CATALYST" .
3. Install engine sub-attachment with engine stand shaft (SST) to
right side of cylinder block.

Use spacer to engine front side.
4. Lift engine, and mount it onto engine stand (SST).
1. Reinforcement plate 2. Drive plate 3. Rear oil seal retainer
4. Knock sensor 5. Cylinder block 6. Thrust bearing (upper)
7. Main bearing (upper) 8. Crankshaft 9. Key
10. Thrust bearing (lower) 11. Main bearing (lower) 12. Main bearing cap
13. Main bearing cap bolt 14. Main bearing beam 15. Baffle plate
16. Connecting rod nut 17. Connecting rod bolt 18. Connecting rod bearing cap
19. Connecting rod bearing 20. Connecting rod 21. Snap ring
22. Piston pin 23. Piston 24. Oil ring
25. Second ring 26. Top ring 27. Pilot converter
28. Oil jet
PBIC2486E
PBIC2618E

EM-230
[VQ]
CYLINDER BLOCK


A widely use engine stand can be used.
CAUTION:
Use engine stand that has a load capacity [approximately
220 kg (441 lb) or more] large enough for supporting the
engine weight.
NOTE:
This example is engine stand for holding at transaxle mount-
ing side with drive plate removed.
5. Drain engine oil. Refer to LU-21, "
Changing Engine Oil" .
6. Drain engine coolant by removing water drain plugs from cylin-
der block both sides at “A” and “D” and cylinder block front side
at “B” as shown in the figure.
NOTE:
Water drain plug at the right bank side for VQ35DE is also used
as a connector of water pipe for oil cooler. Refer to LU-23, "
OIL
COOLER (VQ35DE)" .
7. Remove drive plate. Fix crankshaft pulley with pulley holder [SST: KV10109300], and remove mounting
bolts.

Loosen mounting bolts in diagonal order.
CAUTION:

Do not disassemble drive plate.

Do not place drive plate with signal plate facing down.

When handling signal plate, take care not to damage or
scratch it.

Handle signal plate in a manner that prevents it from
becoming magnetized.
8. Remove cylinder head. Refer to EM-210, "
CYLINDER HEAD" .
9. Remove knock sensor.
CAUTION:
Carefully handle sensor avoiding shocks.
PBIC0085E
PBIC2487E
SEM760G

CYLINDER BLOCK
EM-239
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Press-fit pilot converter with its chamfer facing crankshaft as
shown in the figure.
19. Install knock sensor.

Install knock sensor so that connector faces front of engine.

After installing knock sensor, connect harness connector, and
lay it out to rear of engine.
CAUTION:

Do not tighten mounting bolt while holding connector.

If any impact by dropping is applied to knock sensor,
replace it with new one.
NOTE:

Make sure that there is no foreign material on the cylinder
block mating surface and the back surface of knock sensor.

Make sure that knock sensor does not interfere with other parts.
20. Note the following, assemble in the reverse order of disassembly after this step.
Drive plate

Install drive plate and reinforcement plate as shown in the fig-
ure.

Fix crankshaft pulley with pulley holder [SST: KV10109300].

Tighten mounting bolts crosswise over several times.
How to Select Piston and Bearing BBS004WC
DESCRIPTION
SEM537E
PBIC0810E
PBIC0910E
Selection points Selection parts Selection items Selection methods
Between cylinder block and
crankshaftMain bearingMain bearing grade
(bearing thickness)Determined by match of cylin-
der block bearing housing
grade (inner diameter of hous-
ing) and crankshaft journal
grade (outer diameter of jour-
nal)
Between crankshaft and con-
necting rodConnecting rod bearingConnecting rod bearing grade
(bearing thickness)Combining service grades for
connecting rod big end diame-
ter and crankshaft pin outer
diameter determine connecting
rod bearing selection.
Between cylinder block and pis-
tonPiston and piston pin assembly
(Piston is available together
with piston pin as assembly.)Piston grade
(piston skirt diameter)Piston grade = cylinder bore
grade (inner diameter of bore)
Between piston and connecting
rod*———

FRONT WHEEL HUB AND KNUCKLE
FAX-5
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FA X

FRONT WHEEL HUB AND KNUCKLEPFP:40202
On-Vehicle Inspection BDS0007K
Make sure that the mounting conditions (looseness, backlash) of each component and component conditions
(wear, damage) are normal.
WHEEL BEARING INSPECTION

Move wheel hub and bearing assembly in the axial direction by hand. Make sure there is no looseness of
wheel bearing.

Rotate wheel hub and make sure that is no unusual noise or other irregular conditions. If there is any of
irregular conditions, replace wheel hub and bearing assembly
Removal and InstallationBDS0007L
COMPONENT
REMOVAL
1. Remove tires from vehicle.
2. Remove wheel sensor from steering knuckle. Refer to BRC-33, "
WHEEL SENSORS" .
CAUTION:
Do not pull on wheel sensor harness.
3. Remove torque member fixing bolts. Hang torque member in a place where it will not interfere with work.
Refer to BR-26, "
FRONT DISC BRAKE" .
NOTE:
Do not depress brake pedal while brake caliper is removed.
4. Put matching mark on disc rotor and wheel hub and bearing
assembly, then remove disc rotor.
5. Remove cotter pin, then loosen hub lock nut.
6. Remove wheel hub and bearing assembly mounting bolts.Axial end play : 0.05 mm (0.002 in) or less
1. Cotter pin 2. Disc rotor 3. Wheel hub and bearing assembly
4. Splash guard 5. Steering knuckle 6. Stopper bolt
SDIA1756E
SDIA2608E

FRONT WHEEL HUB AND KNUCKLE
FAX-7
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FA X

INSTALLATION

Installation is the reverse order of the removal. For tightening torque, refer to FAX-5, "COMPONENT" .
NOTE:
Do not reuse non-reusable parts.

When installing transverse link ball joint, fix bolt to avoid rotation, and then tighten the nut.

Perform the final tightening of each of parts under unladen conditions, which were removed when remov-
ing wheel hub and bearing assembly and steering knuckle. Check the wheel alignment. Refer to FSU-5,
"Wheel Alignment Inspection" .

Adjust neutral position of steering angle sensor after checking the wheel alignment for the models with
VDC. Refer to BRC-40, "
Adjustment of Steering Angle Sensor Neutral Position" .

Check wheel sensor harness for proper connection. Refer to BRC-33, "WHEEL SENSORS" .

Assembly disc rotor and wheel hub and bearing assembly by
aligning each matching mark as shown in the figure when install-
ing disc rotor.
NOTE:
Refer to BR-26, "
FRONT DISC BRAKE" for assembly when
removing disc rotor without matching mark.
SDIA2608E

FAX-8
FRONT DRIVE SHAFT

FRONT DRIVE SHAFTPFP:39100
On-Vehicle InspectionBDS0007M

Check drive shaft mounting point and joint for looseness and other damage.

Check boot for cracks and other damage.
CAUTION:
Replace entire drive shaft assembly when noise or vibration occur from drive shaft.
DRIVE SHAFT BOOT REPLACEMENT
1. Remove tires from vehicle.
2. Remove wheel sensor from steering knuckle. Refer to BRC-33, "
WHEEL SENSORS" .
CAUTION:
Do not pull on wheel sensor harness.
3. Remove torque member fixing bolts. Hang torque member in a place where it will not interfere with work.
Refer to BR-26, "
FRONT DISC BRAKE" .
NOTE:
Do not depress brake pedal while brake caliper is removed.
4. Remove disc rotor. Refer to FA X - 5 , "
Removal and Installation" .
5. Remove cotter pin, then loosen hub lock nut.
6. Separate wheel hub and bearing assembly from drive shaft by
lightly tapping the end with hammer (suitable tool) and a wood
block, and then remove hub lock nut.
CAUTION:

Do not place drive shaft joint at an extreme angle. Also be
careful not to overextend slide joint.

Do not allow drive shaft to hang down without support for
housing (or joint sub-assembly), shaft and the other
parts.
NOTE:
Use a puller (suitable tool) if wheel hub and drive shaft cannot
be separated even after performing the above procedure.
7. Remove fixing nuts and bolts, and then remove steering knuckle
from strut assembly. Refer to FSU-7, "
Components" .
8. Remove drive shaft from wheel hub and bearing assembly.
9. Remove boot bands, and then remove boot from joint sub-
assembly.
10. Screw a drive shaft puller (suitable tool) into joint sub-assembly
screw part to a length of 30 mm (1.18 in) or more. Support drive
shaft with one hand and pull out joint sub-assembly with a slid-
ing hammer (suitable tool) from shaft.
CAUTION:

Align a sliding hammer and drive shaft and remove them
by pulling firmly and uniformly.

If joint sub-assembly cannot be pulled out, try after
removing drive shaft from vehicle.
SDIA1821E
SEIA0411J
SDIA0881J

FAX-10
FRONT DRIVE SHAFT

20. Install boot securely into grooves (indicated by *marks) shown in
the figure.
CAUTION:
If there is grease on boot mounting surfaces (indicated by *
marks) of shaft and housing, boot may come off. Remove
all grease from surfaces.
21. Make sure boot installation length “L” is the length indicated
below. Insert flat-bladed screwdriver or similar tool into smaller
side of boot. bleed air from boot to prevent boot deformation.
CAUTION:

Boot may break if boot installation length is less then standard value.

Take care not to touch the tip of screwdriver to inside of boot.
22. Secure the large and small ends of boot with new boot bands
using boot band crimping tool [SST: KV40107300] as shown in
the figure.
NOTE:

Do not reuse boot bands.

Secure boot band so that dimension “M” meets the specifica-
tion as shown.
23. Secure joint sub-assembly and shaft, and then make sure that
they are in the correct position when rotating boot. Install them
with new boot band when boot installation positions become
incorrect.
24. Confirm that circular clip on transaxle side is fully engaged.
25. Insert drive shaft to wheel hub and bearing assembly, and then
temporarily tighten hub lock nut.
26. Install nuts and bolts of steering knuckle and strut. Refer to FSU-7, "
Components" , “FRONT SUSPEN-
SION ASSEMBLY” for tightening torque.
27. Install disc rotor. Refer to FAX-5, "
Removal and Installation" .
28. Install torque member fixing bolts to steering knuckle. Refer to BR-26, "
FRONT DISC BRAKE" .
29. Install wheel sensor to steering knuckle. Refer to BRC-33, "
WHEEL SENSORS" .
30. Tighten lock nut to the specified torque. Refer to FA X - 11 , "
COMPONENT"
31. Install cotter pin.
NOTE:
Do not reuse cotter pin.
32. Install tires to vehicle.Engine model Boot installation length L
QR20DE
141.7 – 143.7 mm (5.58 – 5.66 in)
VQ23DE
VQ35DE 155.3 – 161.3 mm (6.11 – 6.35 in)
SDIA1760E
RAC1133D
Dimension “M” : 2.0 – 3.0 mm (0.079 – 0.118 in)
DSF0047D