sensor NISSAN X-TRAIL 2001 Service User Guide

EXHAUST MANIFOLD AND THREE WAY CATALYST
EM-25
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c. Remove exhaust manifold cover upper.
d. Loosen nuts in reverse order of illustration to remove exhaust
manifold and catalytic converter.
●Disregard the numerical order No. 6 and 7 when loosening.
3. Remove exhaust manifold and three way catalyst loosening nuts
in reverse order in the figure.
INSPECTION AFTER REMOVAL
Surface Distortion
Use a reliable straightedge and feeler gauge to check the flatness of
exhaust manifold fitting surface.
INSTALLATION
Install in the reverse order of removal paying attention to the following.
Exhaust Manifold Nuts
●Tighten nuts in the numerical order shown in the figure.
●No. 6 and 7 indicate double tightening of bolts No. 1 and 3.
Heated Oxygen Sensor
CAUTION:
Do not over torque the heated oxygen sensor. Doing so may cause damage to the heated oxygen sen-
sor, resulting in the MIL coming on.
KBIA0045E
Standard: 0.3 mm (0.012 in)
KBIA0046E
KBIA0045E

EM-46
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CAMSHAFT
CAMSHAFT
PFP:13001
Removal and InstallationEBS00LS2
CAUTION:
Apply new engine oil to parts marked in illustration before installation.
REMOVAL
The following procedure describes removing and installing camshaft without removing front cover. If the front
cover is removed or installed, removal of No. 1 camshaft bracket is easier before step 8. Installation is easier
after step 3. Regarding removal and installation of front cover, refer to EM-37, "
TIMING CHAIN" .
1. Release fuel pressure. Refer to EC-775, "
FUEL PRESSURE RELEASE" [QR20DE (WITH EURO-OBD)],
EC-1139, "
FUEL PRESSURE RELEASE" [QR20DE (WITHOUT EURO-OBD)], EC-42, "FUEL PRES-
SURE RELEASE" [QR25DE (WITH EURO-OBD)] or EC-452, "FUEL PRESSURE RELEASE" [QR25DE
(WITHOUT EURO-OBD)].
2. Remove parts listed below.
●Ignition coil; Refer to EM-29, "IGNITION COIL" .
●Rocker cover; Refer to EM-35, "ROCKER COVER" .
3. Remove power steering reservoir tank.
KBIA0244E
1. Camshaft bracket 2. Washer 3. Front cover
4. Chain guide 5. Chain tensioner 6. O-ring
7. Spring 8. Chain tensioner plunger 9.Intake valve timing control solenoid
valve
10. Intake valve timing control cover 11. Camshaft sprocket (EXH) 12. Camshaft sprocket (INT)
13. Valve lifter 14. Camshaft (EXH) 15. Camshaft (INT)
16. Camshaft position sensor (PHASE)

EM-48
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CAMSHAFT
c. Secure hexagonal part of camshaft with a tool such as a span-
ner. Loosen camshaft sprocket mounting bolts and remove the
camshaft sprockets.
CAUTION:
Do not rotate crankshaft or camshaft while timing chain is
removed. It causes interference between valve and piston.
NOTE:
Chain tension holding work is not necessary. Crank sprocket
and timing chain do not disconnect structurally while front cover
is attached.
8. Loosen mounting bolts in the reverse order shown in the figure,
and remove camshaft brackets and camshafts.
●Remove No. 1 camshaft bracket by slightly tapping it with a
soft tool such as a plastic hammer.
9. Remove valve lifter.
●Check mounting positions, and store them without mixing
them up.
INSTALLATION
1. Install valve lifter.
●Install them in the same positions they were in prior to removal.
2. Install camshaft.
●Distinction between intake and exhaust camshafts is per-
formed with a difference of shapes of rear end.
●Install camshafts so that dowel pins on the front side are posi-
tioned as shown in the figure.
KBIA0049E
SBIA0255E
Intake : Signal plate shape for camshaft position
(PHASE) sensor.
Exhaust : Cone end shape.
KBIA0246E
KBIA0051E

EM-70
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ENGINE ASSEMBLY
1. Release fuel pressure. Refer to EC-775, "FUEL PRESSURE RELEASE" [QR20DE (WITH EURO-OBD)],
EC-1139, "
FUEL PRESSURE RELEASE" [QR20DE (WITHOUT EURO-OBD)], EC-42, "FUEL PRES-
SURE RELEASE" [QR25DE (WITH EURO-OBD)] or EC-452, "FUEL PRESSURE RELEASE" [QR25DE
(WITHOUT EURO-OBD)].
2. Remove engine hood.
3. Drain engine coolant from radiator drain plug. Refer to CO-9, "
DRAINING ENGINE COOLANT" .
4. Remove the following parts.
●LH/RH undercovers
●LH/RH front wheels
●Battery
●Drive belts; Refer to EM-12, "REMOVAL" .
●Air duct and air cleaner case assembly; Refer to EM-14, "REMOVAL" .
●Alternator
●Radiator and radiator fan assembly; Refer to CO-11, "RADIATOR" .
5. Disconnect engine room harness from the engine side and set it aside for easier work.
6. Disconnect all the body-side vacuum hoses and air hoses at engine side.
Engine room LH
7. Disconnect fuel hose, and plug it to prevent fuel from draining. Refer to EM-16, "
INTAKE MANIFOLD"
8. Disconnect heater hose, and install plug it to prevent engine coolant from draining.
9. Disconnect select cable from transaxle (A/T models).
10. Remove clutch operating cylinder from transaxle, and move it aside (M/T models).
11. Disconnect shift cable from transaxle (M/T models).
Engine room RH
12. Remove engine coolant reservoir tank.
13. Remove air conditioner compressor with piping connected from engine. Temporarily secure it on body
with a rope to avoid putting load on it.
Vehicle underbody
14. Remove exhaust front tube.
15. Remove propeller shaft.
16. Remove steering shaft from steering gear.
17. Disconnect power steering fluid cooler piping at a point between body and engine.
18. Remove ABS sensor from brake caliper.
19. Remove brake caliper with piping connected from steering knuckle. Temporarily secure it on body with a
rope to avoid load on it.
20. Remove LH/RH suspensions from steering knuckle under strut.
Removal
21. Install engine slingers into front left of cylinder head and rear right of cylinder head.
●Use alternator bracket mounting bolt holes for the front side.
22. Lift with hoist and secure the engine in position.Slinger bolts:
Front
: 51.0 - 64.7 N·m (5.2 - 6.6 kg-m, 38 - 47 ft-lb)
Rear
: 24.5 - 31.4 N·m (2.5 - 3.2 kg-m, 18 - 23 ft-lb)
SBIA0271E

CYLINDER BLOCK
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CYLINDER BLOCKPFP:11010
Disassembly and AssemblyEBS00KNU
KBIA0258E
1. Cylinder block 2. O-ring 3. Crankshaft position sensor (POS)
4. Knock sensor 5. Oil pressure switch 6. Lower cylinder block
7. Lower cylinder block bolt 8. Snap ring 9. Connecting rod
10. Connecting rod bearing 11. Connecting rod bearing cap 12. Connecting rod bolt
13. Piston 14. Oil ring 15. Second ring
16. Top ring 17. Piston pin 18. Thrust bearing
19. Main bearing upper 20. Crankshaft 21. Main bearing lower
22. Rear oil seal 23. Pilot convertor (A/T model) 24. Signal plate
25. Drive plate (A/T model) 26. Reinforce plate (A/T model) 27. Flywheel (M/T model)

CYLINDER BLOCK
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●A commercial engine stand can be used.
NOTE:
This example is an engine stand for holding at transaxle
mounting side with the flywheel or drive plate removed.
3. Drain engine oil and engine coolant from inside of engine.
4. Remove the following components and associated parts.
●Exhaust manifold and three way catalyst assembly; Refer to
EM-24, "
EXHAUST MANIFOLD AND THREE WAY CATA-
LYST" .
●Intake manifold collector; Refer to EM-16, "INTAKE MANI-
FOLD" .
●Intake manifold and fuel tube assembly; Refer to EM-16, "INTAKE MANIFOLD" .
●Ignition coil; Refer to EM-29, "IGNITION COIL" .
●Rocker cover; Refer to EM-35, "ROCKER COVER" .
●Oil pan and oil strainer; Refer to EM-26, "OIL PAN AND OIL STRAINER" .
●Front cover, timing chain and balancer unit; Refer to EM-37, "TIMING CHAIN" .
●Camshaft; Refer to EM-46, "CAMSHAFT" .
●Cylinder head; Refer to EM-59, "CYLINDER HEAD" .
5. Remove knock sensor.
CAUTION:
Carefully handle the sensor avoiding shocks.
6. Remove crankshaft position sensor (POS).
CAUTION:
●Avoid impacts such as a dropping.
●Do not disassemble.
●Keep it away from metal particles.
●Do not place sensor close to magnetic materials.
7. Remove flywheel (M/T model) or drive plate (A/T model). Fix crankshaft with a stopper plate, and remove
mounting bolts.
Torx bit (size T55): Flywheel (M/T model)
Torx socket (size T55): Drive plate (A/T model)
CAUTION:
Be careful not to damage contact surface for the clutch disc
of the flywheel.
NOTE:
The flywheels, two block construction, allows movement in
response to transmission side pressure, or when twisted in its
rotational direction. Therefore, some amount of noise is normal.
PBIC0085E
SBIA0273E
KBIA0062E

EM-82
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CYLINDER BLOCK
16. Install flywheel (M/T model) or drive plate (A/T model).
●Install drive plate, reinforcement plate and pilot converter as
shown in figure (A/T model).
●Using drift of 33 mm (1.30 in) in diameter, push pilot converter
into the end of crankshaft (A/T model).
17. Install knock sensor.
●Make sure that there is no foreign material on the cylinder
block mating surface and the back surface of the knock sen-
sor.
●Install sensor with connector facing lower left by 45° as
shown.
●D o n o t t i g h t e n t h e m o u n t i n g b o l t s w h i l e h o l d i n g t h e c o n n e c t o r.
●Make sure that the knock sensor does not interfere with other-
parts.
CAUTION:
If any impact by dropping is applied to the knock sensor,
replace it with new one.
18. Install crankshaft position (POS) sensor.
19. Install followings in reverse order of removal.
How to Select Piston and Bearing EBS00KNV
DESCRIPTION
*For the service parts, the grade for fitting cannot be selected between a piston pin and a connecting rod.
(Only 0 grade is available.) The information at the shipment from the plant is described as a reference.
●The identification grade stamped on each part is the grade for the dimension measured in new condition.
This grade cannot apply to reused parts.
●For reused or repaired parts, measure the dimension accurately. Determine the grade by comparing the
measurement with the values of each selection table.
●For details of the measurement method of each part, the reuse standards and the selection method of the
selective fitting parts, refer to the text.
KBIA0075E
KBIA0069E
Selection points Selection parts Selection items Selection methods
Between cylinder block to
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 to connect-
ing rodConnecting rod bearingConnecting rod bearing grade
(bearing thickness)Combining service grades for
connecting rod big end inner
diameter and crankshaft pin
outer diameter determine con-
necting rod bearing selection.
Between cylinder block to pis-
tonPiston and piston pin assembly
The piston is available together
with piston pin as an assembly.Piston grade (piston outer
diameter)Piston grade = cylinder bore
grade (inner diameter of bore)
*Between piston to connecting
rod———

EM-108
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SERVICE DATA AND SPECIFICATIONS (SDS)
Bearing Oil Clearance
Unit: mm (in)
Tightening TorqueEBS00KNY
Unit: N·m (kg-m, ft-lb)
Unit: N·m (kg-m, in-lb)*2
Connecting rod bearing oil clearanceStandard 0.028 - 0.045 (0.0011 - 0.0018)
Limit 0.10 (0.0039)
*1: Parts to be tightened in particular orders.
1)-: Order of tightening when tightening two or more times separately.
Auto-tensioner 19.6 - 23.5 (2.0 - 2.4, 15 - 17)
Mass air flow sensor
3.8 - 4.5 (0.39 - 0.46, 34 - 39) *
2
Resonator
3.8 - 4.5 (0.39 - 0.46, 34 - 39)*2
Air cleaner case lower
3.8 - 4.5 (0.39 - 0.46, 34 - 39)*2
*1 Intake manifold17.6 - 21.6 (1.8 - 2.2, 13 - 15)
Intake manifold collector 17.6 - 21.6 (1.8 - 2.2, 13 - 15)
Intake manifold support 17.6 - 21.6 (1.8 - 2.2, 13 - 15)
Electric throttle control actuator
7.2 - 9.6 (0.74 - 0.98, 64 - 84) *
2
EVAP canister purge volume control solenoid valve
4.3 - 5.8 (0.44 - 0.59, 38 - 51) *2
*1 Exhaust manifold 39.2 - 44.1 (4.0 - 4.5, 29 - 32)
Exhaust manifold cover
5.1 - 6.5 (0.52 - 0.66, 46 - 57) *
2
Heated oxygen sensor 40 - 50 (4.1 - 5.1, 30 - 36)
*1 Oil pan upper M6 bolt
8.1 - 9.5 (0.83 - 0.97, 72 - 84) *
2
M8 bolt 19.6 - 23.5 (2.0 - 2.4, 15 - 17)
Oil pan upper to transmission joint bolts 39.2 - 46.1 (4.0 - 4.7, 29 - 34)
*1 Oil pan lower
6.4 - 7.5 (0.65 - 0.76, 57 - 66) *
2
Oil pan drain plug29.4 - 39.2 (3.0 - 4.0, 22 - 28)
Rear plate cover
6.4 - 7.5 (0.65 - 0.76, 57 - 66) *
2
Oil strainer M6 bolt
8.1 - 9.5 (0.83 - 0.97, 72 - 84) *2
M8 bolt 19.6 - 23.5 (2.0 - 2.4, 15 - 17)
Oil level gauge guide 19.6 - 23.5 (2.0 - 2.4, 15 - 17)
Ignition coil
5.4 - 7.3 (0.55 - 0.75, 48 - 64) *
2
Spark plug19.6 - 29.4 (2.0 - 3.0, 15 - 21)
*1 Fuel tube1)
2)9.3 - 10.8 (0.95 - 1.1, 0.7 - 0.8) *
2
20.6 - 26.5 (2.1 - 2.7, 16 - 19)
*1 Rocker cover1)
2)0.98 - 2.9 (0.1 - 0.3, 9 - 25) *
2
7.4 - 9.3 (0.75 - 0.95, 66 - 82) *2
PCV valve
1.96 - 2.94 (0.20 - 0.30, 18 - 26) *2
Intake valve timing control solenoid valve
5.4 - 7.3 (0.55 - 0.75, 48 - 64) *2
*1 Intake valve timing control cover 11.8 - 13.7 (1.2 - 1.4, 9 - 10)
Camshaft position sensor (PHASE)
5.4 - 7.3 (0.55 - 0.75, 48 - 64) *
2
Camshaft sprocket (Intake and Exhaust) 127- 157 (13.0 - 16.0, 94 - 115)
Chain tensioner
6.4 - 7.5 (0.65 - 0.76, 57 - 66) *
2

SERVICE DATA AND SPECIFICATIONS (SDS)
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*1 Camshaft bracket 1)
2)
3)
4)2.0 (0.2, 17) *2
2.0 (0.2, 17) *2
5.9 (0.6, 52) *2
9.0 - 11.8 (0.92 - 1.20, 80 - 104) *2
Crankshaft pulley 1)
2)37.3 - 47.1 (3.8 - 4.8, 28 - 34)
60° - 66° (Angle tightening)
*1 Front cover 11.8 - 13.7 (1.2 - 1.4, 9 - 10)
Timing chain slack guide 15.7 - 17.7 (1.6 - 1.8, 12 - 13)
Timing chain tension guide 15.7 - 17.7 (1.6 - 1.8, 12 - 13)
Balancer unit timing chain tensioner
6.4 - 7.5 (0.65 - 0.76, 57 - 66) *
2
*1 Balancer unit 1) 45.2 - 51.0 (4.6 - 5.2, 34 - 37)
2) 90° - 95° (Angle tightening)
3) 0 (0.0, 0)
4) 45.2 - 51.0 (4.6 - 5.2, 34 - 37)
5) 90° - 95° (Angle tightening)
*1 Cylinder head 1) 98.1 (10.0, 72)
2) 0 (0.0, 0)
3) 34.3 - 44.1 (3.54.5, 26 - 32)
4) 75° - 80° (Angle tightening)
5) 75° - 80° (Angle tightening)
Flywheel (M/T)103 - 113 (10.5 - 11.5, 76 - 83)
Drive plate (A/T)103 - 113 (10.5 - 11.5, 76 - 83)
Connecting rod bearing cap 1) 18.6 - 20.6 (1.9 - 2.1, 14 - 15)
2) 90° - 95° (Angle tightening)
*1 Lower cylinder block M10 bolt 1) 36.3 - 42.2 (3.7 - 4.3, 27 - 31)
M10 bolt 2) 60° - 65° (Angle tightening)
M8 bolt 3) 19.6 - 24.5 (2.0 - 2.5, 15 - 18)
Knock sensor 15.7 - 26.5 (1.6 - 2.7, 12 - 19)
Oil pressure switch 12.3 - 17.2 (1.25 -1.75, 9 - 12)
Signal plate12 - 14 (1.2 - 1.4, 9 - 10)
Crankshaft position sensor (POS)
5.4 - 7.3 (0.55 - 0.75, 48 - 64) *
2

EM-120
[YD22DDTi]
AIR CLEANER AND AIR DUCT
AIR CLEANER AND AIR DUCT
PFP:16500
Removal and InstallationEBS00LRD
REMOVAL
1. Remove mass air flow sensor harness clamp.
2. Disconnect harness connector from mass air flow sensor.
3. Remove air duct, air cleaner case/ mass air flow sensor.
●Add marks as necessary for easier installation.
4. Remove mass air flow sensor from air cleaner case.
CAUTION:
Handle mass air flow sensor with following cares.
●Do not shock it.
●Do not disassemble it.
●Do not touch its sensor.
INSTALLATION
1. Attach each joint aligning marks put at removal. Screw clamps firmly.
2. Install in the reverse order of removal.
PBIC1235E
1. Air cleaner case (upper) 2. Clamp 3. Air duct
4. Mass air flow sensor 5. Grommet 6. Air duct side
7. Mounting rubber 8. Air cleaner case (lower) 9. Air cleaner filter