2003 NISSAN X-TRAIL engine coolant

CYLINDER HEAD
EM-197
[YD22DDTi]
C
D
E
F
G
H
I
J
K
L
MA
EM

10. Complete this operation as follows:
a. Turn the ignition switch to “OFF”.
b. Disconnect battery negative terminal.
c. Install glow plug and install all the parts removed in step 4.
d. Install fuel pump fuse [ENG CONT (20A)].
e. Connect battery negative terminal.
f. Using CONSULT-II make sure no DTC is indicated for items of self-diagnosis.
Removal and InstallationEBS00LRW
REMOVAL
1. Drain engine coolant. Refer to CO-31, "Changing Engine Coolant" .
2. Remove the following:

Charge air cooler (Refer to EM-135, "Removal and Installation" .)

Rocker cover (Refer to EM-168, "Removal and Installation" .)

Air cleaner and air duct (Refer to EM-133, "Removal and Installation" .)

Vacuum pump (Refer to EM-153, "Removal and Installation" .)

Spill tube and fuel injector (Refer to EM-157, "Removal and Installation" .)

Intake manifold (Refer to EM-136, "Removal and Installation" .)

Exhaust manifold and Turbocharger (Refer to EM-141, "Removal and Installation" .)

Secondary timing chain (Refer to EM-180, "Removal and Installation" .)

Camshaft (Refer to EM-170, "Removal and Installation" .)
3. Remove cylinder head assembly.
1. Glow plug 2. Cylinder head assembly 3. Cylinder head bolt
4. Copper washer 5. Engine coolant temperature sensor 6. Gasket
7. Water outlet 8. Dowel pin 9. Gasket
10. Glow harness 11. Glow plate 12. Cap
PBIC2437E

CYLINDER HEAD
EM-201
[YD22DDTi]
C
D
E
F
G
H
I
J
K
L
MA
EM

4. After installing cylinder head, measure dimension from the front
end surface of cylinder block to that of cylinder head.

If out of the standard, check fitting of dowel pins and cylinder
head.
5. Install glow plug.
CAUTION:

To avoid damage, glow plugs should be removed only when required.

Handle with care to avoid applying shock. When dropped from approx. 10 cm (3.94 in) or higher,
always replace with a new one.

Before installing, remove carbon depositing on mounting hole of glow plug with a reamer.
6. Install engine coolant temperature sensor.
7. Install in the reverse order of removal.
Disassembly and AssemblyEBS00LRX
DISASSEMBLY
1. Remove adjusting shims and valve lifters.

Check the installation positions, and keep them to avoid being confused. Standard : 23.53 - 24.07 mm (0.9264 - 0.9476 in)
JEM172G
1. Adjusting shim 2. Valve lifter 3. Valve collet
4. Valve spring retainer 5. Valve spring 6. Valve oil seal
7. Valve spring seat 8. Valve guide 9. Cylinder head
10. Valve seat 11. Valve (Exhaust) 12. Valve (Intake)
PBIC2328E

EM-208
[YD22DDTi]
ENGINE ASSEMBLY

ENGINE ASSEMBLYPFP:10001
Removal and InstallationEBS00LRY
WARNING:

Situate vehicle on a flat and solid surface.

Place chocks at front and back of rear wheels.

For engines not equipped with engine slingers, attach proper slingers and bolts described in
PARTS CATALOG.
CAUTION:

Always be careful to work safely, avoid forceful or uninstructed operations.

Do not start working until exhaust system and engine coolant are cool enough.

If items or work required are not covered by the engine main body section, refer to the applicable
sections.

Always use the support point specified for lifting.

Use either 2-pole lift type or separate type lift as best you can. If board-on type is used for
unavoidable reasons, support at the rear axle jacking point with transmission jack or similar tool
before starting work, in preparation for the backward shift of center of gravity.

For supporting points for lifting and jacking point at rear axle, refer to GI-36, "Garage Jack and
Safety Stand" .
1. Rear engine mounting insulator 2. Rear engine mounting bracket 3. RH engine mounting insulator
4. RH engine mounting bracket 5. Front engine mounting bracket 6. Front engine mounting insulator
7. Center member 8. LH engine mounting insulator 9. LH engine mounting bracket
10. Stopper 11. Grommet (2pcs)
PBIC1257E

ENGINE ASSEMBLY
EM-209
[YD22DDTi]
C
D
E
F
G
H
I
J
K
L
MA
EM

REMOVAL
Description of work
Remove engine, transaxle and transfer assembly with front suspension member from vehicle downward. Sep-
arate suspension member, and then 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-31, "
DRAINING ENGINE COOLANT" .
3. Remove the following parts.

LH/RH engine undercover

LH/RH front wheels

Battery; Refer to SC-3, "BATTERY" .

Drive belts; Refer to EM-132, "Removal and Installation" .

Air duct and air cleaner case assembly; Refer to EM-133, "Removal and Installation" .

Alternator; Refer to SC-16, "Removal and Installation" .

Radiator and cooling fan assembly; Refer to CO-34, "Removal and Installation" and CO-36, "COOL-
ING FAN" .

Charge air cooler; Refer to EM-135, "CHARGE AIR COOLER" .
4. Disconnect engine room harness from the engine side and set it aside for easier work.
5. Disconnect all the body-side vacuum hoses and air hoses at engine side.
Engine room LH
1. Disconnect fuel feed hose and return hose, and plug it to prevent fuel from draining. Refer to EM-136,
"INTAKE MANIFOLD" .
2. Disconnect heater hose, and install plug it to prevent engine coolant from draining. Refer to EM-136,
"INTAKE MANIFOLD" .
3. Remove clutch operating cylinder from transaxle, and move it aside. Refer to MT-17, "
TRANSAXLE
ASSEMBLY" and CL-10, "OPERATING CYLINDER" .
4. Disconnect shift cable from transaxle. Refer to MT-14, "
CONTROL LINKAGE" .
Engine room RH
1. Remove engine coolant reservoir tank. Refer to CO-34, "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, "Removal and Installation" .
2. Remove propeller shaft. Refer to PR-4, "
Removal and Installation" .
3. Remove steering shaft from steering gear. Refer to PS-10, "
STEERING COLUMN" .
4. Disconnect power steering fluid cooler piping at a point between body and engine. Refer to PS-34,
"HYDRAULIC LINE" .
5. Remove ABS sensor from brake caliper. Refer to BRC-45, "
WHEEL SENSORS" (ABS), BRC-116,
"WHEEL SENSORS" (ESP/TCS/ABS).
6. 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" .
7. Remove left and right suspensions from steering knuckle under strut. Refer to FSU-5, "
FRONT SUSPEN-
SION ASSEMBLY" .

ENGINE ASSEMBLY
EM-211
[YD22DDTi]
C
D
E
F
G
H
I
J
K
L
MA
EM

8. Remove power steering oil pump with piping connected from engine. Move it aside on suspension mem-
ber. Refer to PS-34, "
HYDRAULIC LINE" .
9. Remove front engine mounting and rear engine mounting through-bolts to remove suspension member.
10. Remove starter motor. Refer to SC-21, "
STARTING SYSTEM" .
11. Separate engine and transaxle. Refer to MT-17, "
TRANSAXLE ASSEMBLY" .
INSTALLATION
Install in the reverse order of removal.

Do not allow engine oil to get on mounting insulator. Be careful not to damage mounting insulator.

When installation directions are specified, install parts according to the direction marks on them referring
to figure of components. Refer to EM-208, "
ENGINE ASSEMBLY" .

Make sure that each mounting insulator is seated properly, and tighten mounting bolts and nuts.
INSPECTION AFTER INSTALLATION

Before starting engine, check the levels of engine coolant, engine oil and working fluid. If less than
required quantity, fill to the specified level.

Before starting engine, bleed air from fuel piping. Refer to FL-18, "Air Bleeding" .

Run engine to check for unusual noise and vibration.

Warm up engine thoroughly to make sure there is no leakage of engine coolant, lubricants, working
engine oil, fuel and exhaust gas.

Bleed air from passages in pipes and tubes of applicable lines, such as in cooling system.

After cooling down engine, again check amounts of engine coolant, engine oil and working fluid. Refill to
specified level, if necessary.
Summary of the inspection items:
Item Before starting engine Engine running After engine stopped
Engine coolant Level Leakage Level
Engine oil Level Leakage Level
Working fluid Level Leakage Level
Fuel — Leakage —
Exhaust gas — Leakage —

EM-214
[YD22DDTi]
CYLINDER BLOCK

e. Hoist engine and install it to the engine stand (special service
tool).
NOTE:
It is possible to set engine sub-attachment and engine stand
shaft to the engine stand at first, then install engine later.

Widely use engine stand can be used.
NOTE:
The figure shows an example of general-purpose engine
stand that can hold mating surface of transmission with drive
plate and rear plate removed.
5. Drain engine oil and engine coolant from inside engine. Refer to LU-21, "
Changing Engine Oil" .
6. Drain engine coolant by removing drain plug from inside of
engine.
7. Remove the following parts and related parts. (Only major parts are listed.)

Intake manifold (Refer to EM-136, "Removal and Installation" .)

Exhaust manifold and turbocharger (Refer to EM-141, "Removal and Installation" .)

Rocker cover (Refer to EM-168, "Removal and Installation" .)

Fuel injector (Refer to EM-157, "Removal and Installation" .)

Oil pan and oil strainer (Refer to EM-147, "Removal and Installation" .)

Water pump (Refer to CO-42, "WATER PUMP" .)

Thermostat and water piping (Refer to CO-44, "THERMOSTAT AND WATER PIPING" .)
JEM193G
PBIC0085E
PBIC2439E

CYLINDER BLOCK
EM-217
[YD22DDTi]
C
D
E
F
G
H
I
J
K
L
MA
EM

20. Remove oil jet relief valve.
ASSEMBLY
1. Blow air sufficiently to inside engine coolant passage, engine oil passage, crankcase and cylinder bore to
remove foreign matter.
CAUTION:
Use a goggles to protect your eye.
2. Install oil jet relief valve.
3. Install oil jet.

Align knock pin on back of oil jet with hole on block when
installing oil jet.
4. Install main bearings and thrust bearings.
a. Remove contamination, dust and engine oil from bearing mount-
ing positions on cylinder block and main bearing caps.
b. Install thrust bearings on both sides of No. 3 housing on cylinder
block.

Install thrust bearings with oil groove facing to crankshaft arm
(outside).
c. Being careful with the direction, install main bearings.

Install main bearings with the oil holes and grooves onto the
cylinder block side, and those without oil holes and grooves
onto the main cap side.

While installing bearings, apply engine oil to bearing surfaces
(inside). Do not apply engine oil to rear surfaces, but clean
them completely.

Align stopper notches on bearings to install them.

Make sure that the oil holes on the cylinder block body are
mated with the oil hole positions on the bearings.
5. Install crankshaft to cylinder block.

Make sure crankshaft rotates smoothly by hand.
6. Install main bearing caps.

Identify main bearing caps by the punched mark. Install cor-
rectly matching the journal No. on the bearing cap and the
journal with the front mark facing forward.

Main bearing caps are commonly processed with the cylinder
block. Therefore, caps and cylinder block should be replaced
as a set.
7. Check the main bearing cap bolts for deformation. Refer to EM-
234, "MAIN BEARING CAP BOLT DEFORMATION" .
PBIC0389E
JEM224G
JEM213G
JEM225G

CYLINDER BLOCK
EM-229
[YD22DDTi]
C
D
E
F
G
H
I
J
K
L
MA
EM

Piston Pin Outer Diameter
Use micrometer to measure piston pin outer diameter.
Calculation of Connecting Rod Bushing Clearance
(Connecting rod bushing clearance) = (Connecting rod bushing inner diameter) − (Piston pin outer diameter)

If it exceeds the limit, replace connecting rod and/or piston and piston pin assembly. Refer to EM-223,
"HOW TO SELECT CONNECTING ROD BEARING" and/or EM-222, "HOW TO SELECT PISTON" .
CYLINDER BLOCK TOP SURFACE DISTORTION

Using scraper, remove gasket installed onto cylinder block sur-
face. Remove contamination such as engine oil, scale, and car-
bon.
CAUTION:
Keep broken pieces of gasket clear of engine oil and engine
coolant passages.

Use straightedge and feeler gauge to check block upper surface
for six distortion.

If it exceeds the limit, replace cylinder block.
MAIN BEARING HOUSING INNER DIAMETER

Without installing main bearings, install main bearing caps, and
tighten bolts to the specified torque. Refer to EM-217, "
ASSEM-
BLY" .

Measure the inner diameter of main bearing housing with a bore
gauge.

If the measurement is out of the standard, replace cylinder block
and main bearing caps.
NOTE:
These components cannot be replaced as a single unit, because
they were processed together.Standard : 27.995 - 28.000 mm (1.1022 - 1.1024 in)
PBIC0117E
Standard : 0.026 - 0.044 mm (0.0010 - 0.0017 in)
Limit : 0.057 mm (0.0022 in)
Limit : 0.1 mm (0.004 in)
SEM501G
Standard : 66.654 - 66.681 mm (2.6242 - 2.6252 in)
PBIC1643E