check engine NISSAN X-TRAIL 2005 Service Workshop Manual

VACUUM PUMP
EM-163
[YD22DDTi]
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VACUUM PUMPPFP:41920
Removal and InstallationEBS00LRM
INSPECTION BEFORE REMOVAL
1. Disconnect vacuum hose, and connect a vacuum gauge via 3-way connector.

Disconnect point where vacuum from vacuum pump can be measured directly and install 3-way con-
nector.
2. Start engine and measure generated vacuum at idle speed.

If out of standard, check for air suction in vacuum route, and measure again.

If still outside of standard, replace vacuum pump.
REMOVAL
1. Drain engine coolant. Refer to CO-32, "Changing Engine Coolant" .
2. Remove air duct and air cleaner case (upper). Refer to EM-142, "
Removal and Installation" .
3. Remove charge air cooler. Refer to EM-144, "
Removal and Installation" .
4. Disconnect harness connector from fuel injector.
5. Remove injection tubes. Refer to EM-167, "
Removal and Installation" .
6. Remove rocker cover. Refer to EM-178, "
Removal and Installation" .
7. Remove spill tube. Refer to EM-167, "
Removal and Installation" .
8. Remove nozzle support from No. 2 cylinder and No. 2 fuel injector. Refer to EM-167, "
Removal and Instal-
lation" . (To fix the hexagonal portion of the camshaft.)
9. Remove air inlet pipes. Refer to EM-151, "
Removal and Installation" .
1.Vacuum pump and cylinder head rear cover
assembly2. O-ring 3. Cylinder head rear cover plate
4. Camshaft position sensor
PBIC3638E
Standard:
– 86.6 to – 101.3 kPa (– 866 to – 1,013 mbar, – 650 to – 760 mmHg, – 25.59 to – 29.92 inHg)

VACUUM PUMP
EM-165
[YD22DDTi]
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5. Install cylinder head rear cover plate.

Apply a continuous bead of liquid gasket with the tube presser
(special service tool: WS39930000) to area shown in the fig-
ure.
Use Genuine Liquid Gasket or equivalent.

Attaching should be done within 5 minutes after coating.
6. Install in reverse order of removal.

When vacuum hose is connected, insert it securely by at least 15 mm (0.59 in).
CAUTION:
Do not start engine with vacuum circuit being open. If engine is started and vehicle is running while
vacuum pump is open (with vacuum hose disconnected), blow-by flow rate will increase and engine
may be damaged.
7. Before starting engine, bleed air from fuel piping. Refer to FL-18, "
Air Bleeding" .
INSPECTION AFTER INSTALLATION
Check generated vacuum satisfies the specification at idle speed. Refer to EM-163, "INSPECTION BEFORE
REMOVAL" .
Disassembly and AssemblyEBS00LRN
DISASSEMBLY
1. Remove drive chain from rear camshaft sprocket and vacuum pump sprocket.
2. Remove rear camshaft sprocket.
SBIA0169E
1. Rear camshaft sprocket 2. Drive chain 3. Chain guide
4. Cylinder head rear cover 5. Vacuum pump 6. O-ring
PBIC3639E

EM-170
[YD22DDTi]
INJECTION TUBE AND FUEL INJECTOR

CAUTION:

Check gutter spring in nozzle oil seal on fuel injector for missing.
6. Connect injection tubes individually to each cylinder in order of
3-4-1-2.
7. Connect spill hose. Refer to EM-146, "
INTAKE MANIFOLD" .
8. Install remaining parts in the reverse order of removal.
9. Before starting engine, bleed air from fuel piping. Refer to FL-18, "
Air Bleeding" .
INSPECTION AFTER INSTALLATION
Start engine and increase engine speed to check for fuel leak.
CAUTION:
Do not touch engine immediately after stopped as engine becomes extremely hot.
NOTE:
Use mirrors for checking at points out of clear sight.
SBIA0203E

ROCKER COVER
EM-179
[YD22DDTi]
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Loosen holding bolts in reverse order of that shown in the fig-
ure and remove.
6. Remove rocker cover gasket.
INSTALLATION
1. Apply 3.0 mm (0.118 in) dia. on locations shown in the figure.

Use Genuine Liquid Gasket or equivalent.
2. Install rocker cover gasket to rocker cover.
3. Tighten holding bolts in numerical order shown in the figure.
Re-tighten to the same torque in the same order as above.
4. Install nozzle oil seal.

Insert it straight until flange fully contacts rocker cover.
5. Install remaining parts in the reverse order of removal.
6. Before starting engine, bleed air from fuel piping. Refer to FL-18, "
Air Bleeding" .
INSPECTION AFTER INSTALLATION
Start engine and increase engine speed to check for fuel leak.
CAUTION:
Do not touch the engine immediately after stopped as engine becomes extremely hot.
NOTE:
Use mirrors for checking at points out of clear sight.
SBIA0175E
JEM248G
: 7.8 N·m (0.8 kg-m, 69 in-lb)
SBIA0175E

CAMSHAFT
EM-181
[YD22DDTi]
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Loosen the camshaft sprocket mounting bolt by fixing the hex-
agonal portion of camshaft.
10.11. Remove camshaft as follows:
a. Loosen and remove the camshaft sprocket bolts in reverse order
shown in the figure.
b. Place distinguishing marks on the right and left sides with paint.
12. Remove adjusting shim and valve lifter.

Remove by taking notice of the installation position, and place outside engine in order to prevent confu-
sion.
INSPECTION AFTER REMOVAL
Visual Check of Camshaft

Check the camshaft for one sided wear or scratches.

Replace the camshaft if there are abnormalities.
Camshaft Runout

Prepare V-block on a flat surface and secure camshaft journals
No. 2 and No. 5.

Set the dial indicator vertically on journal No. 3.

Rotate camshaft in one direction by hand, then read needle
movement on dial indicator (total indicator reading).

If it exceeds the limit, replace camshaft.
Camshaft Cam Height

Measure the height of camshaft cam using the micrometer.

If out of the standard, replace camshaft.
JEM159G
JEM160G
Limit : 0.02 mm (0.0008 in)
PBIC2499E
Standard:
Intake : 39.505 - 39.695 mm (1.5553 - 1.5628 in)
Exhaust : 39.905 - 40.095 mm (1.5711 - 1.5785 in)
SEM549A

CAMSHAFT
EM-185
[YD22DDTi]
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Install so that knock pins are positioned in the directions
shown in the figure.
NOTE:
Though camshaft does not stop at the location as shown in
the figure, for the placement of cam nose, it is generally
accepted that camshaft is placed at the same direction as
shown in the figure.
3. Install camshaft brackets.

Completely remove any foreign material on back surfaces of camshaft brackets and top surface of cyl-
inder head.

Install correctly, identifying brackets by the journal No. and
front mark on top surface.
4. Tighten bolts in the order shown in the figure according to the
following procedure:
a. Tighten all bolts.

Make sure camshaft thrusting parts (on rear side) securely fit
in their mating parts on the cylinder head.
b. Tighten all bolts.
c. Tighten all bolts.
5. Install camshaft sprockets.

Camshaft sprockets are commonly used for right side and left side.

Align camshaft sprocket and knock pin on camshaft, and install.

Holding the hexagonal part of camshaft with a wrench, tighten bolt securing camshaft sprocket.
6. Before installing spill tube after installing secondary timing chain, check and adjust valve clearance. Refer
to EM-185, "
Valve Clearance" .
7. Hereafter, install in the reverse order of removal.
8. Before starting engine, bleed air from fuel piping. Refer to FL-18, "
Air Bleeding" .
Va l v e C l e a r a n c eEBS00LRS
INSPECTION

When the camshaft or parts in connection with valves are removed or replaced, and a malfunction has
occurred (poor starting, idling, or other malfunction) due to the misadjustment of the valve clearance,
inspect as follows.

Inspect and adjust when the engine is cool (at normal temperature).
PBIC2026E
JEM175G
: 2 N·m (0.2 kg-m, 1 ft-lb)
: 6 N·m (0.6 kg-m, 4 ft-lb)
: 12.5 N·m (1.3 kg-m, 9 ft-lb)
JEM160G

CAMSHAFT
EM-189
[YD22DDTi]
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9. Select the new adjusting shim from the following methods.

New adjusting shims have the thickness stamped on the rear
side.

Shims are available in 33 size from 2.10 mm (0.0827 in) to
2.74 mm (0.1079 in), in steps of 0.02 mm (0.0008 in).
10. Fit the selected adjusting shim to valve lifter.
CAUTION:
Place the stamped side of adjusting shim to valve lifter.
11. Compress valve spring using the camshaft pliers (special service tool: KV10115110) and remove the lifter
stopper (special service tool).
12. Rotate crankshaft 2 to 3 turns by hand.
13. Confirm that the valve clearance is within the specification. Refer to EM-185, "
INSPECTION" .
14. Install remaining parts in the reverse order of removal. Refer to EM-184, "
INSTALLATION" .
15. Warm up the engine, and check for unusual noise and vibration.Calculation method of the adjusting shim thickness:
R = Thickness of removed shim
N = Thickness of new shim
M = Measured valve clearance
Intake
N = R + [M - 0.28 mm (0.0010 in)]
Exhaust
N = R + [M - 0.30 mm (0.0118 in)]
Stamped mark Shim thickness mm (in)
2.10
2.12
·
·
·
2.74 2.10 (0.0827)
2.12 (0.0835)
·
·
·
2.74 (0.1079)
JEM184G
PBIC2325E

EM-190
[YD22DDTi]
OIL SEAL

OIL SEALPFP:12279
Removal and Installation of Valve Oil SealEBS01FBM
REMOVAL
1. Remove camshafts. Refer toEM-180, "Removal and Installation" .
2. Remove adjusting shims and valve lifters. Refer to EM-180, "
Removal and Installation" .

Check the installation positions, and keep them to avoid being confused.
3. Rotate crankshaft, and set piston whose valve oil seal is to be removed to TDC. This will prevent valve
from dropping into cylinder.
4. Remove valve collet.

Compress the valve spring with valve spring compressor,
attachment and adapter (special service tool). Remove valve
collet with a magnet hand.
CAUTION:
When working, be careful not to damage valve lifter holes.
5. Remove valve spring retainer and valve spring.
6. Remove valve oil seal with the valve oil seal puller (special ser-
vice tool).
INSTALLATION
1. Apply new engine oil to valve oil seal joint surface and seal lip.
2. Using the valve oil seal drift (special service tool), install valve oil
seals referring to the dimension shown in the figure.
3. Install in the reverse order of removal.
PBIC2388E
JEM153G
JEM165G

PRIMARY TIMING CHAIN
EM-207
[YD22DDTi]
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a. Apply a continuous bead of liquid gasket with the tube presser
(special service tool: WS39930000) as shown in the figure.
b. Install oil pump drive spacer to crankshaft.

Install with the front mark (punched mark) facing the front of
the engine.
c. Install O-ring into the groove of rear chain case.
d. Install oil pump housing.

When installing, align the inner rotor in the direction of the two facing flats of oil pump drive spacer.

When installing, align the dowel pin with the pin hole.
e. Tighten fixing bolts in numerical order shown in the figure.
f. After tightening all the bolts, re-tighten in the same order.
14. Check gaps on upper oil pan mounting surface.

Using straightedge and feeler gauge, measure gaps between
the locations of the following parts:

If the measured value is out of the standard, install again.
15. Install crankshaft pulley as follows:
a. Install crankshaft pulley, taking care not to damage front oil seal.
CAUTION:
Do not tap pulley on the side surface where belt is installed (outer circumference).A : Leave the start and end areas of the bead slightly
protruding from the surface.
B : Apply liquid gasket along upper end surface of oil
pump housing.
JEM144G
JEM145G
JEM133G
Oil pump housing and rear chain case:
Standard : – 0.09 to 0.09 mm (– 0.0035 to 0.0035 in)
Rear chain case and cylinder block:
Standard : – 0.19 to 0.07 mm (– 0.0075 to 0.0028 in)
JEM146G

EM-208
[YD22DDTi]
PRIMARY TIMING CHAIN

b. Hold crankshaft pulley with the pulley holder (special service
tool).
c. Apply engine oil onto threaded parts of crankshaft pulley bolt
and seating area.
d. Tighten crankshaft pulley fixing bolt.
e. Put an alignment mark on crankshaft pulley that aligns with one
of the punched marks on the bolt.
f. Then turn all bolts 60 degrees clockwise (turn by one notch).
16. Install secondary timing chain and the associated parts. Refer to EM-195, "
INSTALLATION" .
17. Rotate crankshaft pulley in normal direction (clockwise when viewed from engine front) to check for inter-
ference among parts.
18. Install in the reverse order of removal.: 24.5 N·m (2.5 kg-m, 18 ft-lb)
JEM131G
JEM147G