2005 NISSAN X-TRAIL ESP

CYLINDER HEAD
EM-71
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If the engine speed is out of specified range, check battery liquid for proper gravity. Check engine
speed again with normal battery gravity.

If compression pressure is below minimum value, check valve clearances and parts associated with
combustion chamber (Valve, valve seat, piston, piston ring, cylinder bore, cylinder head, cylinder head
gasket). After the checking, measure the compression pressure again.

If some cylinder has low compression pressure, pour small amount of engine oil into the spark plug hole
of the cylinder to re-check it for compression.
–If the added engine oil improves the compression, piston rings may be worn out or damaged. Check
piston rings and replace if necessary.
–If the compression pressure remains at low level despite the addition of engine oil, valves may be mal-
functioning. Check valves for damage. Replace valve or valve seat accordingly.

If two adjacent cylinders have respectively low compression pressure and their compression remains
low even after the addition of engine oil, gaskets are leaking. In such a case, replace cylinder head gas-
kets.
8. After inspection is completed, install removed parts.
9. Start engine, and confirm that engine runs smoothly.
10. Perform trouble diagnosis. If DTC appears, erase it. Refer to EC-73, "
TROUBLE DIAGNOSIS" (WITH
EURO-OBD) or EC-572, "
TROUBLE DIAGNOSIS" (WITHOUT EURO-OBD).
Removal and InstallationEBS00KNQ
REMOVAL
1. Release fuel pressure. Refer to EC-49, "FUEL PRESSURE RELEASE" (WITH EURO-OBD) or EC-562,
"FUEL PRESSURE RELEASE" (WITHOUT EURO-OBD).
2. Drain engine coolant and engine oil. Refer to CO-9, "
Changing Engine Coolant" and LU-8, "Changing
Engine Oil" .
3. Remove the following components and related parts.

Exhaust manifold and three way catalyst assembly; Refer to EM-25, "EXHAUST MANIFOLD AND
THREE WAY CATALYST" .

Intake manifold and fuel tube assembly (QR20DE); Refer to EM-18, "Removal and Installation
(QR20DE)" .

Intake manifold collector, intake manifold and fuel tube assembly (QR25DE); Refer to EM-21, "Removal
and Installation (QR25DE)" .

Water control valve and water control valve housing (water outlet); Refer to CO-23, "THERMOSTAT
AND WATER CONTROL VALVE" .
1. Cylinder head assembly 2. Cylinder head gasket 3. Cylinder head bolt
PBIC2185E

EM-86
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ENGINE ASSEMBLY

2. Release fuel pressure. Refer to EC-49, "FUEL PRESSURE RELEASE" (WITH EURO-OBD) or EC-562,
"FUEL PRESSURE RELEASE" (WITHOUT EURO-OBD).
3. Drain engine coolant from radiator. Refer to CO-9, "
DRAINING ENGINE COOLANT" .
4. Remove the following parts.

LH and RH undercovers

Front road wheels and tyres

Battery; Refer to SC-4, "BATTERY" .

Drive belt; Refer to EM-13, "DRIVE BELTS" .

Air duct and air cleaner case assembly; Refer to EM-16, "AIR CLEANER AND AIR DUCT" .

Alternator; Refer to SC-13, "CHARGING SYSTEM" .

Radiator and radiator cooling fan assembly; Refer to CO-12, "RADIATOR" .
5. Disconnect engine room harness from the engine side and set it aside for easier work.
6. Disconnect all vacuum hoses and air hoses connected to vehicle side at engine side.
Engine Room LH
1. Disconnect fuel feed hose, and plug it to prevent fuel from draining. Refer to EM-34, "FUEL INJECTOR
AND FUEL TUBE"
2. Disconnect heater hose, and install plug it to prevent engine coolant from draining.
3. Disconnect control cable from transaxle (A/T models). Refer to AT- 4 0 4 , "
ON-VEHICLE SERVICE" .
4. Disconnect clutch operating cylinder from transaxle, and move it aside (M/T models). Refer to CL-12,
"OPERATING CYLINDER" .
5. Disconnect shift and select cable from transaxle (M/T models). Refer to MT-16, "
CONTROL LINKAGE" .
Engine Room RH
1. Remove engine coolant reservoir tank. Refer to CO-12, "RADIATOR" .
2. Remove A/C compressor with piping connected from engine. Temporarily secure it on vehicle side with a
rope to avoid putting load on it. Refer to ATC-144, "
Removal and Installation of Compressor" .
Vehicle Underbody
1. Remove exhaust front tube. Refer to EX-2, "EXHAUST SYSTEM" .
2. Remove propeller shaft. Refer to PR-3, "
REAR PROPELLER SHAFT" .
3. Remove steering lower joint from steering gear. Refer to PS-11, "
STEERING COLUMN" .
4. Disconnect power steering fluid piping at a point between vehicle and engine. Refer to PS-37, "
HYDRAU-
LIC LINE" .
5. Remove rear plate cover from oil pan (upper). Then remove bolts fixing drive plate to torque converter
(A/T models). Refer to EM-27, "
OIL PAN AND OIL STRAINER" and AT- 4 1 3 , "REMOVAL AND INSTALLA-
TION" .
6. Remove transaxle joint bolts which pierce at oil pan (upper) lower rear side. Refer to MT-19, "
TRAN-
SAXLE ASSEMBLY" (M/T models) or AT- 4 1 3 , "REMOVAL AND INSTALLATION" (A/T models).
7. Remove front wheel sensor (LH and RH) for ABS from steering knuckle. Refer to BRC-46, "
WHEEL SEN-
SORS" (ABS) or BRC-116, "WHEEL SENSORS" (ESP/TCS/ABS).
8. Remove brake caliper assembly with piping connected from steering knuckle. Temporarily secure it on
vehicle side with a rope to avoid load on it. Refer to BR-27, "
FRONT DISC BRAKE" .
9. Remove lower ends of left and right strut from steering knuckle. Refer to FSU-5, "
FRONT SUSPENSION
ASSEMBLY" .
Removal
1. Install engine slingers into front left of cylinder head and rear right of cylinder head.

EM-92
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CYLINDER BLOCK

NOTE:
The flywheel, two block construction, allows movement in response to transaxle side pressure, or when
twisted in its rotational direction. Therefore, some amount of noise is normal.
10. Remove pilot converter using pilot bushing puller (special ser-
vice tool) or suitable tool. (A/T models)
NOTE:
M/T models have no pilot bushing.
11. Remove piston and connecting rod assembly with the following procedure:

Before removing piston and connecting rod assembly, check the connecting rod side clearance. Refer
to EM-107, "
CONNECTING ROD SIDE CLEARANCE" .
a. Position crankshaft pin corresponding to connecting rod to be removed onto the bottom dead center.
b. Remove connecting rod cap.
c. Using a hammer handle or similar tool, push piston and connect-
ing rod assembly out to the cylinder head side.
CAUTION:
Be careful not to damage the cylinder wall, resulting from
an interference of the connecting rod big end.
12. Remove connecting rod bearings.
CAUTION:
When removing them, note the installation position. Keep them in the correct order.
13. Remove piston rings form piston.

Use a piston ring expander (commercial service tool).
CAUTION:

When removing piston rings, be careful not to damage
the piston.

Be careful not to damage piston rings by expanding
them excessively.
14. Remove piston from connecting rod with the following procedure:
SBIA0274E
PBIC0259E
PBIC0087E

CYLINDER BLOCK
EM-97
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Assemble so that the front mark on the piston head and the oil
holes and the cylinder number on connecting rod are posi-
tioned as shown in the figure.
c. Install new snap ring to the groove of the piston front side.

Insert it fully into groove to install.

After installing, make sure that connecting rod moves
smoothly.
8. Using a piston ring expander (commercial service tool), install piston rings.
CAUTION:
Be careful not to damage piston.

Position each ring with the gap as shown in the figure refer-
ring to the piston front mark.

Install second ring with the stamped surface facing upward.
NOTE:
If there is no stamped mark on piston ring, no specific orienta-
tion is required for installation.
9. Install connecting rod bearings to connecting rod and connecting rod cap.

When installing connecting rod bearings, apply new engine oil to the bearing surface (inside). Do not
apply new engine oil to the back surface, but thoroughly clean it.

When installing, align the connecting rod bearing stopper pro-
trusion with the cutout of connecting rod and connecting rod
cap to install.

Ensure the oil hole on connecting rod and that on the corre-
sponding bearing are aligned.
10. Install piston and connecting rod assembly to crankshaft.

Position crankshaft pin corresponding to connecting rod to be installed onto the bottom dead center.

Apply new engine oil sufficiently to the cylinder bore, piston and crankshaft pin.

Match the cylinder position with the cylinder number on connecting rod to install.
PBIC2194E
Stamped mark:
To p r i n g : —
Second ring : 2F
PBIC2195E
PBIC0266E

EM-102
[QR]
CYLINDER BLOCK

Connecting Rod Bearing Grade Table
Unit: mm (in)
Undersize Bearings Usage Guide

When the specified connecting rod bearing oil clearance is not obtained with standard size connecting rod
bearings, use undersize (US) bearings.

When using undersize (US) bearing, measure the connecting rod bearing inner diameter with bearing
installed, and grind the crankshaft pin so that the connecting rod bearing oil clearance satisfies the stan-
dard.
CAUTION:
In grinding crankshaft pin to use undersize bearings, keep the
fillet R [1.5 - 1.7 mm (0.059 - 0.067 in)].
Bearing undersize table
Unit: mm (in)
HOW TO SELECT MAIN BEARING
When New Cylinder Block and Crankshaft are Used
1. “Main Bearing Selection Table” rows correspond to main bearing
housing grade on rear left side of cylinder block.

If there is a corrected stamp mark on cylinder block, use it as
a correct reference.
2. Apply main journal diameter grade stamped on crankshaft front
side to column in the “Main Bearing Selection Table”.
Grade number 0 1 2 3
Thickness1.495 - 1.499
(0.0589 - 0.0590)1.499 - 1.503
(0.0590 - 0.0592)1.503 - 1.507
(0.0592 - 0.0593)1.507 - 1.511
(0.0593 - 0.0595)
Identification color Black Brown Green Yellow
PBIC2200E
Size Thickness
US 0.25 (0.0098) 1.624 - 1.632 (0.0639 - 0.0643)
SBIA0283E
PBIC2198E

EM-164
[YD22DDTi]
VACUUM PUMP

10. Remove exhaust manifold cover. Refer to EM-151, "Removal and Installation" .
11. Disconnect heater hose. Refer to EM-146, "
INTAKE MANIFOLD" .
12. Remove EGR cooler. Refer to EM-146, "
INTAKE MANIFOLD" .
13. Disconnect vacuum hose from vacuum pump side.
14. Remove camshaft position sensor.
15. Remove cylinder head rear cover plate.
16. Loosen and remove the mounting bolts in rear camshaft sprocket. Refer to EM-165, "
Disassembly and
Assembly" .

Loosen rear camshaft sprocket mounting bolt by fixing the hexagonal portion of camshaft.
17. Remove vacuum pump and cylinder head rear cover assembly.

Remove and install vacuum pump, sprocket, drive chain and chain guide as an assembly.

Loosen mounting bolts in reverse order shown in figure.

Do not remove any bolts not shown in figure. (Especially
never remove M6 bolts on vacuum pump.)

U s e t h e s e a l c u t t e r ( s p e c i a l s e r v i c e t o o l : K V 1 0 1111 0 0 ) o r
other suitable tool to remove.
INSTALLATION
1. Install vacuum pump and cylinder head rear cover assembly
onto cylinder head. Refer to EM-166, "
ASSEMBLY" .

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.
2. Tighten mounting bolts in order shown in the figure.
3. Install rear camshaft sprocket mounting bolts by fixing the hexagonal portion of camshaft.
4. Tighten rear camshaft sprocket mounting bolts.
SBIA0167E
PBIC1141E
SBIA0167E

EM-168
[YD22DDTi]
INJECTION TUBE AND FUEL INJECTOR

b. Remove injection tubes in order of 2-1-4-3 individually.
CAUTION:
Be careful not to allow leaked fuel to contaminate engine
room. Especially, ensure to keep engine mounting insulator
clear of fuel.
5. Remove nozzle oil seal.

Using the flat-bladed screwdriver, pry flange to remove oil
seal.
NOTE:
Nozzle oil seal seals between fuel injector and rocker cover. If
only injection tube shall be removed and installed, nozzle oil
seal replacement is not required.
6. Remove rocker cover. Refer to EM-178, "
Removal and Installation" .
7. Remove spill tube mounting bolts and nut.

Loosen bolts and nut to the reverse order in the figure and
remove them.
CAUTION:
When loosening nut, fix spill tube retaining bolt with span-
ner.
SBIA0203E
PBIC0944E
PBIC3606E

ENGINE ASSEMBLY
EM-223
[YD22DDTi]
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REMOVAL
Description of work
Remove engine and transaxle assembly from vehicle downward. Separate engine and transaxle.
Preparation
1. Remove hood assembly. Refer to BL-12, "HOOD" .
2. Drain engine coolant from radiator drain plug. Refer to CO-32, "
DRAINING ENGINE COOLANT" .
3. Remove the following parts.

LH and RH engine undercover

LH and RH front wheels

Battery; Refer to SC-4, "BATTERY" .

Drive belts; Refer to EM-140, "DRIVE BELTS" .

Air duct and air cleaner case assembly; Refer to EM-142, "AIR CLEANER AND AIR DUCT" .

Alternator; Refer to SC-17, "Removal and Installation" .

Radiator assembly; Refer to CO-35, "RADIATOR" .

Charge air cooler; Refer to EM-144, "CHARGE AIR COOLER" .
4. Disconnect engine room harness from the engine side and set it aside for easier work.
5. Disconnect all vacuum hoses and air hoses connected to vehicle side at engine side.
Engine room LH
1. Disconnect fuel hose, and plug it to prevent fuel from draining. Refer to EM-146, "INTAKE MANIFOLD" .
2. Disconnect heater hose, and install plug it to prevent engine coolant from draining. Refer to EM-146,
"INTAKE MANIFOLD" .
3. Remove clutch operating cylinder from transaxle, and move it aside. Refer to MT-19, "
TRANSAXLE
ASSEMBLY" and CL-12, "OPERATING CYLINDER" .
4. Disconnect shift cable from transaxle. Refer to MT-16, "
CONTROL LINKAGE" .
Engine room RH
1. Remove engine coolant reservoir tank. Refer to CO-35, "RADIATOR" .
2. Remove A/C compressor with piping connected from engine. Temporarily secure it on body with a rope to
avoid putting load on it. Refer to ATC-144, "
Removal and Installation of Compressor" .
Vehicle underbody
1. Remove exhaust front tube. Refer to EX-2, "EXHAUST SYSTEM" .
2. Disconnect power steering fluid cooler piping at a point between body and engine. Refer to PS-37,
"HYDRAULIC LINE" .
3. Remove front wheel sensor (LH and RH) for ABS from brake caliper. Refer to BRC-46, "
WHEEL SEN-
SORS" (ABS), BRC-116, "WHEEL SENSORS" (ESP/TCS/ABS).
4. Remove brake caliper with piping connected from steering knuckle. Temporarily secure it on body with a
rope to avoid load on it. Refer to BR-27, "
FRONT DISC BRAKE" .
5. Remove drive shaft (LH and RH) from steering knuckle. Refer to FA X - 11 , "
FRONT DRIVE SHAFT" .
6. Preparation for the separation work of transaxle as follows:
a. Remove crankshaft position sensor from transmission. Refer toEM-157, "
OIL PAN AND OIL STRAINER" .
b. Remove transaxle joint bolts which pierce at oil pan (lower) rear side. Refer to EM-157, "
OIL PAN AND
OIL STRAINER" .