sensor NISSAN LATIO 2008 Service Repair Manual

CAMSHAFT
EM-47
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CAMSHAFT
ComponentINFOID:0000000001702495
Removal and InstallationINFOID:0000000001702496
REMOVAL
WARNING:
• Put a “CAUTION: FLAMMABLE” sign in the workshop.
• Be sure to work in a well ventilated area and furnish workshop with a CO
2 fire extinguisher.
• Do not smoke while servicing fuel system. Keep open flames and sparks away from the work area.
1. Release the fuel pressure. Refer to EC-78, "
Fuel Pressure Check".
2. Disconnect negative battery cable. Refer to SC-6, "
Removal and Installation".
3. Remove front RH wheel. Refer to WT-6
.
4. Remove front fender protector (RH). Refer to EI-23
.
5. Drain engine coolant. Refer to CO-8
.
NOTE:
Perform this step when engine is cold.
6. Remove the following parts.
• Intake manifold; Refer to EM-18
.
• Rocker cover; Refer to EM-30
.
1. O-ring 2. Camshaft position sensor (PHASE) 3. Camshaft bracket
4. Camshaft sprocket (EXH) 5. Camshaft sprocket (INT) 6. Camshaft (EXH)
7. Camshaft (INT) 8. Valve lifter (EXH) 9. Valve lifter (INT)
10. Cylinder head
A. Refer to EM-47
.
PBIC4589E

EM-48
< SERVICE INFORMATION >
CAMSHAFT
• Fuel tube and fuel injector assembly; Refer to EM-33.
• Front cover, timing chain and related parts; Refer to EM-37
.
7. Remove camshaft position sensor (PHASE) from camshaft bracket.
CAUTION:
• Handle carefully to avoid dropping and shocks.
• Never disassemble.
• Never allow metal powder to adhere to magnetic part at sensor tip.
• Never place sensor in a location where it is exposed to magnetism.
8. Put the matching mark (A) on the camshaft sprocket (INT) (2)
and the camshaft bracket (1) as shown.
NOTE:
It prevents the knock pin of the camshaft (INT) from engaging
with the incorrect pin hole when installing the camshaft sprocket
(INT).
9. Remove camshaft sprockets (INT) (1) and (EXH) (2).
• Secure hexagonal part (A) of camshaft with a wrench. Loosen
camshaft sprocket bolts and remove camshaft sprocket.
CAUTION:
• Never rotate crankshaft or camshaft while timing chain
is removed. It causes interference between valve and
piston.
• Never loosen the bolts with securing anything other
than the camshaft hexagonal part or with tensioning the
timing chain.
10. Loosen bolts in reverse order as shown.
11. Cut liquid gasket by prying the position ( ) shown, and then
remove the camshaft bracket.
CAUTION:
• Be careful not to damage the mating surface.
• A more adhesive liquid gasket is applied compared to pre-
vious types when shipped, so it should not be forced off
the position not specified.
12. Remove camshafts.
: Engine front
PBIC3992J
PBIC3454J
: Engine front
PBIC3176J
: Engine front
PBIC3358J

EM-76
< SERVICE INFORMATION >
CYLINDER BLOCK
CYLINDER BLOCK
ComponentINFOID:0000000001702509
1. Cylinder block 2. O-ring 3. Crankshaft position sensor (POS)
4.Crankshaft position sensor (POS)
cover5.Oil filter (for intake valve timing con-
trol)6. Knock sensor
WBIA0773E

CYLINDER BLOCK
EM-77
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Disassembly and AssemblyINFOID:0000000001702510
DISASSEMBLY
1. Remove engine and transaxle assembly from vehicle, separate transaxle from engine. Refer to EM-72.
2. Install engine to engine stand as follows;
a. Remove flywheel (M/T models) or drive plate (1) (A/T or CVT
models).
• Secure flywheel (M/T models) or drive plate (A/T or CVT mod-
els) using Tool (A), and remove bolts.
CAUTION:
Be careful not to damage or scratch drive plate (A/T or CVT
models) and contact surface for clutch disc of flywheel (M/T
models).
NOTE:
Figure shows drive plate (A/T or CVT models)
b. Lift the engine with a hoist to install it onto widely use engine stand.
CAUTION:
• Use the engine stand that has a load capacity [approximately 135 kg (298 lb) or more] large
enough for supporting the engine weight.
• If the load capacity of stand is not adequate, remove the following parts beforehand to reduce the poten-
tial risk of overturning stand.
- Exhaust manifold; Refer to EM-21
.
- Rocker cover; Refer to EM-30
.
NOTE:
The figure shows an example of widely used engine stand (A)
that can support mating surface of transaxle with flywheel (M/T
models) or drive plate (A/T or CVT models) removed.
CAUTION:
Before removing the hanging chains, make sure the engine
stand is stable and there is no risk of overturning.
3. Remove oil pan (upper and lower). Refer to EM-24
.
4. Remove cylinder head. Refer to EM-62
.
5. Remove thermostat housing. Refer to CO-17
.
6. Remove knock sensor.
CAUTION:
Carefully handle knock sensor avoiding shocks.
7. Remove crankshaft position sensor (POS) cover and crankshaft position sensor (POS).
7. Oil pressure switch 8. Top ring 9. Second ring
10. Oil ring 11. Snap ring 12. Piston
13. Piston pin 14. Connecting rod 15. Thrust bearing
16. Connecting rod bearing upper 17. Main bearing upper 18. Crankshaft key
19. Main bearing lower 20. Connecting rod bearing lower 21. Connecting rod bearing cap
22. Connecting rod bolt 23. Main bearing cap 24. Main bearing cap bolt
25. Crankshaft 26. Pilot converter (A/T or CVT models) 27. Signal plate
28. Rear oil seal 29. Drive plate (A/T or CVT models) 30. Reinforcement plate (A/T or CVT
models)
31. Flywheel (M/T models) 32. Block heater (Canada only) A. Refer to EM-77
Tool number : KV 11105210 (J-44716)
PBIC3226J
PBIC3227J

EM-78
< SERVICE INFORMATION >
CYLINDER BLOCK
CAUTION:
• Avoid impacts such as a dropping.
• Never disassemble.
• Keep it away from metal particles.
• Never place sensor in a location where it is exposed to magnetism.
8. Remove oil filter (for intake valve timing control).
9. Remove pilot converter (1) using Tool (A). (A/T or CVT models)
NOTE:
M/T models have no pilot converter.
10. Position crankshaft pin corresponding to connecting rod to be removed onto the bottom dead center.
NOTE:
Before removing piston and connecting rod assembly, check the connecting rod side clearance. Refer to
EM-93, "
Inspection After Disassembly".
11. Remove connecting rod cap.
12. Using a suitable tool, push piston and connecting rod assembly
out to the cylinder head side.
CAUTION:
• Be careful not to damage matching surface with connect-
ing rod cap.
• Be careful not to damage the cylinder wall and crankshaft
pin, resulting from an interference of the connecting rod
big end.
13. Remove connecting rod bearings.
CAUTION:
When removing them, note the installation position. Keep them in the correct order.
14. Remove piston rings form piston.
• Before removing piston rings, check the piston ring side clearance. Refer to EM-93, "
Inspection After
Disassembly".
15. Using a suitable tool (A) remove piston rings.
CAUTION:
• When removing piston rings, be careful not to damage the
piston.
• Be careful not to damage piston rings by expanding them
excessively.Tool number :ST16610001 (J-23907)
PBIC3229J
PBIC0259E
PBIC3233J

CYLINDER BLOCK
EM-85
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• Install pilot converter (1), drive plate (2) and reinforcement
plate (3) as shown (A/T or CVT models).
• Using a suitable tool of 33 mm. (1.30 in) in diameter, press-fit
pilot converter into the end of crankshaft until it stops (A/T or
CVT models).
NOTE:
M/T models have no pilot converter and reinforcement plate.
29. Install knock sensor (1) with connector facing toward the rear of
engine.
CAUTION:
• Never tighten bolts while holding the connector.
• If any impact by dropping is applied to knock sensor,
replace it with a 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.
30. Install crankshaft position sensor (POS) and crankshaft position sensor (POS) cover.
CAUTION:
• Avoid impacts such as a dropping.
• Keep it away from metal particles.
• Never place sensor in a location where it is exposed to magnetism.
31. Install oil filter (for intake valve timing control) (1) in the direction
shown.
• Make sure that the oil filter does not protrude from the upper
surface of cylinder block (2) after installation.
32. Assemble in the reverse order of disassembly.
How to Select Piston and BearingINFOID:0000000001702511
DESCRIPTION
A : Crankshaft rear end
B: R
PBIC4075E
A : Cylinder block left side
: Engine front
PBIC3246J
PBIC3260J

PREPARATION
EX-3
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PREPARATION
Special Service ToolINFOID:0000000001703104
Commercial Service ToolINFOID:0000000001703105
Tool number
Tool nameDescription
KV10114400
(J-38365)
Heated oxygen sensor wrenchLoosening or tightening heated oxygen sen-
sor
a: 22 mm (0.87 in)
NT636
Tool nameDescription
Heated oxygen sensor thread cleaner Reconditioning the exhaust system threads
before installing a new heated oxygen sensor
(Use with anti-seize lubricant shown below.)
a: 18 mm (0.71 in) dia. for zirconia heated
oxygen sensor
b: 12 mm (0.47 in) dia. for titania heated ox-
ygen sensor
Anti-seize lubricant (Permatex 133AR
or equivalent meeting MIL specifica-
tion MIL-A-907)Lubricating heated oxygen sensor thread
cleaner when reconditioning exhaust system
threads
AEM488
AEM489

EX-4
< SERVICE INFORMATION >
EXHAUST SYSTEM
EXHAUST SYSTEM
Checking Exhaust SystemINFOID:0000000001703106
Check exhaust pipes, muffler and mounting for improper attachment,
leaks, cracks, damage or deterioration.
• If necessary, repair or replace damaged parts.
ComponentINFOID:0000000001703107
Removal and InstallationINFOID:0000000001703108
REMOVAL
CAUTION:
SMA211A
1. Main muffler 2. Mounting rubber 3. Ring gasket
4. Center muffler 5. Mounting rubber 6. Spring
7. Seal bearing 8. Heated oxygen sensor 2 9. Exhaust front tube
10. Seal bearing 11. Stud bolt 12. Spring
13. Ground cable
WBIA0844E

EXHAUST SYSTEM
EX-5
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• Be sure to use genuine NISSAN exhaust system parts or equivalents which are specially designed
for heat resistance, corrosion resistance and shape.
• Perform the operation with the exhaust system fully cooled down because the system will be hot
just after the engine stops.
• Be careful not to cut your hand on heat insulator edge.
1. Disconnect harness connector of heated oxygen sensor 2.
• Using Tool, remove heated oxygen sensor 2.
CAUTION:
Be careful not to damage heated oxygen sensor 2.
a.2. Disconnect each joint and mounting rubber.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
• Always replace exhaust gaskets and seal bearings with new ones when installing.
• Discard any heated oxygen sensor 2 which has been dropped from a height of more than 0.5 m (19.7
in) onto a hard surface such as a concrete floor; use a new one.
• Before installing a new heated oxygen sensor 2, clean exhaust system threads using the heated oxy-
gen sensor thread cleaner and apply anti-seize lubricant (commercial service tool).
• Do not over tighten heated oxygen sensor 2. Doing so may cause damage to the heated oxygen sen-
sor 2, resulting in the “MIL” coming on.
• Remove deposits from the sealing surface of each connection. Connect them securely to avoid
exhaust leakage.
• Temporarily tighten nuts on the exhaust manifold side and bolts on the vehicle side. Check each part
for unusual interference, and then tighten them to the specified torque.
• When installing each mounting rubber, avoid twisting or unusual extension in up/down and right/left
directions.
Exhaust Manifold to Exhaust Front Tube
1. Securely insert seal bearing (2) into exhaust manifold (1) side in
the direction shown.
• Exhaust front tube (5)
CAUTION:
Be careful not to damage seal bearing surface when install-
ing.
2. Install spring (3), tighten nut (4).
• Be careful that the stud bolt nut does not interfere with the
flanged area ( ).
• Make sure the spring (3) sits properly on the flange surface by
aligning it to the locator dimples.
Exhaust Front Tube to Center Muffler
1. Securely insert seal bearing (2) into exhaust front tube (1) side
in the direction shown.
• Center muffler (5)
CAUTION:
Be careful not to damage seal bearing surface when install-
ing.
2. With spring (3), tighten bolt (4).
• Be careful that the stud bolt does not interfere with the flanged
area ( ).
• Make sure the spring (3) sits properly on the flange surface by
aligning it to the locator dimples.
INSPECTION AFTER INSTALLATION
• With the engine running, check exhaust tube joints for exhaust leakage and unusual noise.
• Check to ensure that brackets and mounting rubbers are installed properly and free from undue stress.
Improper installation could result in excessive noise and vibration.Tool number : KV10114400 (J-38365)
PBIC3797E
PBIC3798E

FAX-6
< SERVICE INFORMATION >
FRONT WHEEL HUB AND KNUCKLE
2. Without disassembling the hydraulic lines, remove the torque member bolts using power tool. Then repo-
sition the torque member and brake caliper assembly aside with wire. Refer to BR-23
.
CAUTION:
Do not depress brake pedal while brake caliper is removed.
3. Put alignment marks on disc rotor and wheel hub and bearing
assembly, then remove disc rotor.
4. Remove wheel sensor from steering knuckle. Refer to BRC-32
.
CAUTION:
Do not pull on wheel sensor harness.
5. Loosen steering outer socket (1) nut.
6. Remove steering outer socket (1) from steering knuckle (2) so
as not to damage ball joint (3) boot using Tool.
CAUTION:
Temporarily leave the outer socket nut installed to prevent
damage to threads and to prevent the ball joint remover or
suitable tool from suddenly coming off.
7. Remove transverse link ball joint nut and bolt. Then, remove transverse link from steering knuckle.
8. Remove cotter pin, then loosen hub lock nut using power tool.
CAUTION:
Temporarily leave the hub lock nut installed to prevent damage to threads.
9. Separate the drive shaft from the wheel hub and bearing assem-
bly by lightly tapping the end of the drive shaft using a hammer
or suitable tool, and then remove hub lock nut.
NOTE:
Use a suitable puller if wheel hub and bearing assembly and
drive shaft cannot be separated after performing the above pro-
cedure.
10. Remove the drive shaft from the wheel hub and bearing assem-
bly and support the drive shaft.
CAUTION:
• Do not apply an excessive angle to drive shaft joint when
removing from the wheel hub and bearing assembly,
• Do not excessively extend slide joint.
• Do not allow drive shaft to hang down. Support the entire drive shaft.
11. Remove wheel hub and bearing assembly bolts, and then remove splash guard and wheel hub and bear-
ing assembly from steering knuckle.
SDIA1480E
Tool number : HT72520000 (J-25730-A)
SGIA1298E
SDIA1821E