check oil NISSAN X-TRAIL 2003 Electronic Repair Manual

CYLINDER HEAD
EM-181
[YD22DDTi]
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3. Remove cylinder head valve guide hole.
4. Heat cylinder head to 110 to 130°C (230 to 266°F) in oil bath.
5. Using valve guide drift, press fit valve guides from camshaft
side, referring to the dimension shown in the figure.
6. Using valve guide reamer, perform reaming to the press-fitted
valve guides.
Valve Seat Contact
lBefore starting this check, confirm that the dimension of valve
guide and valves are as specified.
lApply red lead primer on contacting surfaces of valves seat and
of valve face to examine the conditions of contacting surfaces.
lCheck that the paint on contacting surfaces is continuous along
the entire circumference.
lIf there are abnormal indications, grind the valve and check the
contact again. If abnormal indications still persist, replace valve
seat.
Valve Seat Replacement
lWhen removing valve seat, replace it with oversized [0.5 mm (0.0020 in)] valve seat.
1. Cut valve seat to make it thin, and pull it out.Valve guide hole diameter (for service parts):
: 10.175 - 10.196 mm (0.4006 - 0.4014 in)
SEM932C
Projection “L” : 10.4 - 10.6 mm (0.409 - 0.417 in)
JEM156G
Reaming specifications:
Intake and Exhaust
6.000 - 6.018 mm (0.2362 - 0.2369 in)
FEM072
EMA0487D

EM-182
[YD22DDTi]
CYLINDER HEAD
2. Machine cylinder head inner diameter at valve seat installation
position.
3. Heat cylinder head to approximately 110 to 130°C(230to
266°F) in oil bath.
4. After cooling valve seats sufficiently with dry ice, press fit it to cylinder head.
CAUTION:
Do not touch the cooled valve seats directly by hand.
5. Using valve seat cutter, finish processing referring to the dimen-
sions shown in the figure.
CAUTION:
When using valve seat cutter, grasp cutter handle with both
hands, press cutter onto contacting face all around, and cut
thoroughly. If cutter is pressed unevenly or repeatedly, the
valve seat surface may be damaged.
6. Using compound, perform valve fitting.
7. Check again to make sure that contacting status is satisfactory.
For details, Refer toEM-181, "
Valve Seat Contact". Machining dimension:
Intake
30.500 - 30.516 mm (1.2008 - 1.2014 in) dia.
Exhaust
29.500 - 29.516 mm (1.1614 - 1.1620 in) dia.
SEM795A
FEM075
SBIA0197E

EM-186
[YD22DDTi]
ENGINE ASSEMBLY
lUse a manual lift table caddy or equivalently rigid tool such as a
jack or trestle. Securely support bottom of engine and transaxle,
and simultaneously adjust hoist tension.
CAUTION:
Put a piece of wood or something similar as the supporting
surface, secure a completely stable condition.
21. Remove RH engine mounting insulator.
22. Pull LH engine mounting through-bolt out.
23. Remove mounting bolts at front end of center member.
24. Remove front suspension member mounting bolts and nuts.
25. Remove engine, transaxle and transfer assembly with suspen-
sion member from vehicle downward by carefully operating sup-
porting tools.
CAUTION:
lDuring the operation, make sure that no part interferes
with body side.
lBefore and during this lifting, always check if any har-
nesses are left connected.
lDuring the removal operation, always be careful to pre-
vent vehicle from falling off the lift due to changes in the center of gravity.
lIf necessary, support vehicle by setting a jack or equivalent tool at the rear.
26. Remove power steering pump with piping connected from engine. Move it aside on suspension member.
27. Remove front engine mounting and rear engine mounting through-bolts to remove suspension member.
28. Remove starter motor.
29. Separate engine and transaxle.
INSTALLATION
Install in the reverse order of removal.
lDo not allow oil to get on mounting insulator. Be careful not to damage mounting insulator.
lWhen installation directions are specified, install parts according to the direction marks on them referring
to components illustration.
lMake sure that each mounting insulator is seated properly, and tighten mounting bolts and nuts.
INSPECTION AFTER INSTALLATION
lBefore starting engine check the levels of coolant, lubrications and working oils. If less than required
quantity, fill to the specified level.
lBefore starting engine, bleed air from fuel piping. Refer toFL-16, "Air Bleeding".
lRun engine to check for unusual noise and vibration.
lWarm up engine thoroughly to make sure there is no leakage of coolant, lubricants, working oil, fuel and
exhaust gas.
KBIA0256E
KBIA0257E
KBIA0270E

CYLINDER BLOCK
EM-191
[YD22DDTi]
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lInsert a flat-bladed screwdriver between main bearing cap and rear oil seal retainer to remove retainer.
9. Remove rear oil seal from rear oil seal retainer.
lPunch out with a flat-bladed screwdriver.
lBe careful not to damage rear oil seal retainer.
10. Remove piston and connecting rod assembly.
lBefore removing piston and connecting rod assembly, check
connecting rod side clearance.
Refer toEM-200, "
CONNECTING ROD SIDE CLEARANCE".
a. Move crankshaft pin to be removed to approximately BDC.
b. Remove connecting rod caps.
c. Using the grip of a hammer, press the piston and connecting rod
assembly out to cylinder head side.
CAUTION:
When removing the piston and connecting rod assembly,
prevent the big end of the connecting rod from interfering
with the oil jet.
11. Remove connecting rod bearings from connecting rods and
caps.
lKeep them by cylinder to avoid confusion.
12. Remove piston rings from pistons using piston ring expander.
CAUTION:
lWhen removing, prevent pistons from being damaged.
lDo not expand piston rings excessively. This may dam-
age the piston rings.
13. Remove pistons from connecting rods.
a. Using long nose pliers, remove snap rings.
JEM195G
FEM086
JEM196G
JEM197G

EM-192
[YD22DDTi]
CYLINDER BLOCK
b. Using industrial dryer, heat pistons up to 60 to 70°C (140 to
158°F).
c. Using rod with outer diameter of 26 mm (1.02 in), press piston
pins out.
14. Remove main bearing cap bolts.
lWith a TORX socket (size: E-14, Commercial Service Tool),
loosen main bearing cap bolts in several stages in the reverse
order of that shown in the figure and remove them.
lBefore loosening main bearing cap bolts, measure crankshaft
side clearance. Refer toEM-200, "
CRANKSHAFT SIDE
CLEARANCE".
15. Remove main bearing caps.
lUsing main bearing cap bolts, remove by rocking bearing cap
back and forth.
16. Remove crankshaft.
17. Remove main bearings and thrust bearings from cylinder block
and main bearing caps.
lCheck the correct installation locations of removed parts.
Store them so they do not get mixed up.
18. Remove oil jet.
19. Remove oil jet relief valve.
PBIC0089E
EMM0072D
JEM200G
JEM201G

CYLINDER BLOCK
EM-193
[YD22DDTi]
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ASSEMBLY
1. Blow air sufficiently to inside coolant passage, oil passage,
crankcase and cylinder bore to remove foreign matter.
2. Install oil jet relief valve.
3. Install oil jet.
lAlign 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 oil from bearing mounting
positions on cylinder block and main bearing caps.
b. Install thrust bearings on both sides of No. 3 housing on cylinder
block.
lInstall thrust bearings with oil groove facing to crankshaft arm
(outside).
c. Being careful with the direction, install main bearings.
lInstall 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.
lWhile installing bearings, apply engine oil to bearing surfaces
(inside). Do not apply oil to rear surfaces, but clean them
completely.
lAlign stopper notches on bearings to install them.
lCheck 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.
lMake sure crankshaft rotates smoothly by hand.
6. Install main bearing caps.
lIdentify 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.
lMain 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 toEM-207, "
MAIN BEARING CAP BOLT DEFORMA-
TION".
PBIC0389E
JEM224G
JEM213G
JEM225G

EM-194
[YD22DDTi]
CYLINDER BLOCK
8. Tighten the main bearing cap bolts according to the following
procedure:
a. Apply engine oil to the threaded part and seat surface of each
bolt.
b. Tighten to 25 to 30 N·m (2.5 to 3.1 kg-m, 18 to 22 ft-lb) in the
numerical order shown in the figure.
c. Put alignment marks (with paint) on each bolt and the main
bearing cap, all in the same direction. (When using a protractor)
d. Then, tighten 90°to 95°[target: 90°].
lAlways use either an angle wrench (SST) or protractor
during angular tightening. Avoid tightening based on
visual checks alone.
lAfter tightening bolts to specified torque, make sure that
crankshaft rotates smoothly.
lCheck crankshaft end side clearance. Refer toEM-200,
"CRANKSHAFT SIDE CLEARANCE".
9. Check the outer diameter of connecting rod bolts. Refer toEM-
207, "CONNECTING ROD BOLT DEFORMATION".
10. Install pistons to connecting rod.
a. Using long nose pliers, install snap rings to grooves on piston rear side.
lFit snap rings correctly into grooves.
b. Install pistons to connecting rods.
lUsing industrial dryer, heat pistons up to approx. 60 to 70°C(140to158°F) until piston pin can be
pressed down by finger touch. Then insert piston pins into piston and connecting rod from front side of
piston toward rear.
lAssemble piston and connecting rod with front mark of piston
crown and cylinder No. stamped on connecting rod being
positioned as shown in the figure.
c. Install snap rings to front side of pistons.
lRefertoabovestepaforprecautiononsnapringinstallation.
lAfter installation, check connecting rods for smooth move-
ment.
11. Use piston ring expander to install piston rings.
CAUTION:
When installing, prevent piston from being damaged.
lInstall top ring and second ring with stamped surfaces facing
upward.
lInstall rings so that three closed gap position 120°apart one
another.
lClosed gaps do not need to face in a specific directions, as long as each are positioned 120°apart.
JEM200G
JEM226G
JEM227G
Identification stamp:
To p r i n g : A E
Second ring : AE2
JEM228G

CYLINDER BLOCK
EM-195
[YD22DDTi]
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12. Install connecting rod bearings to connecting rods and caps.
lWhile installing connecting rod bearings, apply engine oil to
bearing surfaces (inside). Do not apply oil to rear surfaces,
but clean them completely.
lAlign stoppers on connecting rod bearings with connecting
rod stopper notches to install connecting rod bearings.
13. Install piston and connecting rod assembly to crankshaft.
lMove crankshaft pin to be assembled to BDC.
lAlign cylinder position with cylinder No. on connecting rod to
install piston and connecting rod assembly.
lUsing piston ring compressor, install piston and connecting
rod assembly with front mark on piston crown facing toward
the front side of engine.
CAUTION:
When installing piston and connecting rod assembly, pre-
vent the big end of connecting rod from interfering with oil
jet.
14. Install connecting rod caps and mounting nuts.
lAlign cylinder No. stamped on connecting rod with that on cap
to install connecting rod cap.
lMake sure that the front mark on connecting rod cap faces
towards the front of the engine.
15. Tighten connecting rod nuts according to the following proce-
dure:
a. Apply engine oil on bolt threads and seat surface of nuts.
b. Tighten to 29 to 30 N·m (2.9 to 3.1 kg-m, 21 to 22 ft-lb).
c. Loosen completely to 0 N·m (0 kg-m, 0 in-lb).
d. Tighten to 19 to 20 N·m (1.9 to 2.1 kg-m, 14 to 15 ft-lb).
e. Tighten 120°to 125°[target: 120°]. (angular tightening)
lAlways use either an angle wrench (SST) or protractor
during angular tightening. Avoid tightening based on
visual checks alone.
lAfter tightening nuts, check that crankshaft rotates smoothly.
JEM229G
JEM230G
JEM227G
JEM231G

EM-196
[YD22DDTi]
CYLINDER BLOCK
lCheck connecting rod side clearance. Refer toEM-200,
"CONNECTING ROD SIDE CLEARANCE".
16. Force fit rear oil seal into rear oil seal retainer.
lUsing a drift [105 mm (4.13 in) dia.], force fit so that the
dimension is as specified in the figure.
lAvoid inclined fitting. Force fit perpendicularly.
17. Install rear oil seal and retainer assembly.
lApply a continuous bead of liquid gasket to rear oil seal and
retainer assembly as shown in the figure.
18. Press fit pilot bushing into flywheel.
lUsing drift with outer diameter of 19 mm (0.75 in), press fit
pilot bushing until it stops.
19. Install fuel supplypump bracket.
lAlign the bracket with the dowel pins on the block to install.
lThe two bolts used for dowel pins have a longer shanks than
the other two.
20. Install parts to the engine in the reverse order of disassembly.
21. Remove engine from engine stand in the reverse order of
assembly.
22. Install flywheel.
lHolding ring gear with ring stopper (SST), tighten securing
bolts with TORX bit (size: Q6T55 E9, Commercial Service
Tool).
lTighten bolts uniformly in a crisscross manner.
JEM232G
JEM233G
JEM234G
SBIA0200E

CYLINDER BLOCK
EM-201
[YD22DDTi]
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PISTON TO PISTON PIN CLEARANCE
Piston Pin Hole Inner Diameter
Using inside micrometer, measure piston pin hole inner diameter.
Piston Pin Outer Diameter
Using micrometer, measure piston pin outer diameter.
Calculation of Piston to Piston Pin Clearance
(Piston pin clearance) = (Piston pin hole inner diameter)-(Piston pin outer diameter)
lIf clearance is exceeds specification, replace either or both piston/piston pin assembly.
PISTON RING SIDE CLEARANCE
lUsing feeler gauge, measure clearance between piston ring and
piston ring groove.
Unit: mm (in)
lAlign top ring and external surface of piston. Measure lower side
clearance of top ring with top ring pressed onto upper side of
ring groove.
lIf side clearance exceeds the limit, replace piston ring.
lCheck clearance again. If side clearance still exceeds the limit,
replace piston.Standard : 27.997 - 28.005 mm (1.1022 - 1.1026 in) dia.
PBIC0116E
Standard : 27.994 - 28.000 mm (1.1021 - 1.1024 in)dia .
PBIC0117E
Standard : 0.002 - 0.006 mm (0.0001 - 0.0002 in)
Item Standard Limit
Top ring 0.120 - 0.180 (0.0047 - 0.0071) 0.2 (0.008)
2nd ring 0.050 - 0.090 (0.0020 - 0.0035) 0.1 (0.004)
Oil ring 0.030 - 0.070 (0.0012 - 0.0028) —
SEM024AA
FEM100