2003 NISSAN X-TRAIL engine coolant

VACUUM PUMP
EM-131
[YD22DDTi]
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VACUUM PUMPPFP:41920
Removal and InstallationEBS00BO4
INSPECTION BEFORE REMOVAL
1. Disconnect vacuum hose, and connect a vacuum gauge via 3-way connector.
lDisconnect 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.
lIf out of standard, check for air suction in vacuum route, and measure again.
lIf still outside of standard, replace vacuum pump.
REMOVAL
1. Drain engine coolant. Refer toCO-30, "Changing Engine Coolant".
2. Remove air duct and air cleaner case. Refer toEM-112, "
Removal and Installation".
3. Remove charge air cooler and bracket. Refer toEM-114, "
Removal and Installation".
4. Disconnect harness connector from fuel injector.
5. Remove injection tube. Refer toEM-135, "
Removal and Installation".
6. Remove fuel injector oil seal.
7. Remove rocker cover. Refer toEM-147, "
Removal and Installation".
8. Remove spill tube. Refer toEM-135, "
Removal and Installation".
9. Remove nozzle support from NO.2 cylinder and fuel injector. Refer toEM-135, "
Removal and Installation"
.
10. Remove air inlet pipes. Refer toEM-119, "
Removal and Installation".
11. Remove exhaust manifold cover.
SBIA0166E
Standard : – 86.6 to – 101.3 kPa (– 866 to – 1,013 mbar, – 650 to – 760 mmHg, – 25.59 to –
29.92 inHg)

EM-138
[YD22DDTi]
FUEL SUPPLY PUMP
FUEL SUPPLY PUMP
PFP:00018
Removal and InstallationEBS00CBL
CAUTION:
lbefore removing and installing fuel supply pump, be sure to remove sprocket. Do not loosen or
remove installation nut in the center of fuel supply pump. If loosened or removed, replace fuel
supply pump.
lAfter removing timing chain, do not turn crankshaft and camshaft separately, or valves will strike
piston heads.
lWhen installing camshafts, chain tensioners, oil seals, or other sliding parts, lubricate contacting
surfaces with new engine oil.
lApply new engine oil to parts marked in illustration before installation.
REMOVAL
1. Remove coolant reservoir tank.
2. Remove charge air cooler. Refer toEM-114, "
Removal and Installation".
3. Remove RH engine mount insulator and bracket. Refer toEM-184, "
Removal and Installation".
4. Pull power steering reservoir tank out of brackets to move power steering piping.
CAUTION:
To avoid removing power steering reservoir tank out of brackets move it with power steering pip-
ing aside.
1. Washer 2. Fuel supply pump sprocket 3. Fuel supply pump
4. Fuel supply pump rear bracket 5. Fuel connector (Feed side) 6. Fuel connector (Return side)
SBIA0213E

CAMSHAFT
EM-149
[YD22DDTi]
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CAMSHAFTPFP:13001
Removal and InstallationEBS00BOI
CAUTION:
Apply new engine oil to parts marked in illustration before installation.
lThis engine will have a different valve arrangement from normal
DOHC 4-valve type engines. As both camshafts on this engine
have intake and exhaust camshafts, in this chapter they are
named as follows:
lRefer to the figure for intake and exhaust valve arrangement.
(The camshafts have, alternately, either an intake valve or an
exhaust valve.)
REMOVAL
1. Drain engine coolant. Refer toCO-30, "Changing Engine Coolant".
2. Remove charge air cooler. Refer toEM-114, "
Removal and Installation".
3. Remove air duct and air inlet pipe. Refer toEM-112, "
Removal and Installation".
4. Remove rocker cover. Refer toEM-147, "
Removal and Installation".
5. Remove vacuum pump. Refer toEM-131, "
Removal and Installation".
SBIA0177E
1. Camshaft bracket 2. Camshaft (right side) 3. Camshaft ( left side)
4. Camshaft sprocket (right side) 5. Camshaft sprocket (left side) 6. Adjusting shim
7. Valve lifter 8. Cylinder head
.
Camshaft (Right side) : Intake manifold side
Camshaft (Left side) : Exhaust manifold side
SBIA0178E

EM-154
[YD22DDTi]
CAMSHAFT
Valve Clearance
EBS00BOJ
INSPECTION
lWhen 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 mis adjustment
of the valve clearance, inspect as follows.
lInspect and adjust when the engine is cool (at normal tempera-
ture).
lBe careful of the intake and exhaust valve arrangement. The
valve arrangement is different from that in a normal engine.
NOTE:
The camshafts have, alternately, either an intake valve or an
exhaust valve.(Refer to illustration)
1. Drain engine coolant. Refer toCO-30, "
Changing Engine Coolant".
2. Remove charge air cooler. Refer toEM-114, "
Removal and Installation".
3. Remove air duct and air inlet pipe. Refer toEM-112, "
Removal and Installation".
4. Remove rocker cover. Refer toEM-147, "
Removal and Installation".
5. Remove vacuum pump. Refer toEM-131, "
Removal and Installation".
6. Remove injection tube and fuel injector. Refer toEM-135, "
Removal and Installation".
7. Remove secondary timing chain. Refer toEM-158, "
Removal and Installation"
Check valve clearance while engine is cold and not running.
8. Set the No. 1 piston to TDC on its compression stroke.
lTurn crankshaft pulley clockwise so that the knock pin on
camshaft LH faces straight above. (No position indicator, etc.
is provided on the crankshaft pulley.)
9. Put an alignment mark with paint, etc. on the crankshaft pulley
and on the oil pump as an angle indicator.
10. While referring to the figure, measure the valve clearance
marked in the table below.
lThe injection order is 1-3-4-2.
SBIA0178E
SBIA0179E
JEM177G
Measuring pointNo. 1 No. 2 No. 3 No. 4
INT EXH INT EXH INT EXH INT EXH
When the No. 4
cylinder is in the
TDCXXX X
SBIA0180E

EM-158
[YD22DDTi]
SECONDARY TIMING CHAIN
SECONDARY TIMING CHAIN
PFP:13028
Removal and InstallationEBS00BOG
CAUTION:
lAfter removing timing chain, do not turn crankshaft and camshaft separately, or valves will strike
piston heads.
lWhen installing camshafts, chain tensioners, oil seals or other sliding parts, lubricate contacting
surfaces with new engine oil.
lApply new engine oil to parts marked in illustration before installation.
REMOVAL
lFor preparative work for removing/installing secondary timing chain to remove/install electronic fuel supply
pump. Refer toEM-138, "
FUEL SUPPLY PUMP".
lTo prepare for removing/installing secondary timing chain to remove/install camshaft. Refer toEM-149,
"Removal and Installation".
1. Remove coolant reservior tank.
2. Remove RH engine mount insulator and bracket. Rfer toEM-184, "
Removal and Installation".
3. Pull power steering reservoir tank out of brackets to move power steering piping.
CAUTION:
To avoid removing power steering reservoir tank out of brackets move it with power steering pip-
ing aside.
SBIA0188E

PRIMARY TIMING CHAIN
EM-165
[YD22DDTi]
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REMOVAL
1. Remove coolant reservior tank.
2. Remove charge air cooler. Refer toEM-114, "
Removal and Installation".
3. Remove oil cleaner and air duct. Refer toEM-112, "
Removal and Installation".
4. Remove rocker cover. Refer toEM-147, "
Removal and Installation".
5. Remove RH engine mount insulator and bracket. Refer toEM-184, "
Removal and Installation".
6. Pull power steering reservoir tank out of brackets to move power steering piping.
CAUTION:
To avoid removing power steering reservoir tank out of brackets move it with power steering pip-
ing aside.
7. Remove oil pan. Refer toEM-125, "
Removal and Installation".
8. Remove oil filter bracket. Refer toLU-22, "
Removal and Installation".
9. Remove injection tube and fuel injector. Refer toEM-135, "
Removal and Installation".
10. Remove secondary timing chain and associated parts. Refer toEM-158, "
Removal and Installation".
11. When removing rear chain case, remove camshaft sprockets. Refer toEM-149, "
Removal and Installa-
tion".
12. Remove crankshaft pulley.
a. Hold crankshaft pulley with the pulley holder (SST).
b. Loosen crankshaft pulley fixing bolt and pull out the bolt approx-
imately 10 mm (0.39 in).
c. Using pulley puller (SST), remove crankshaft pulley.
lUse two M6 bolts with approx. 60 mm (2.36 in) shank length
for securing crankshaft pulley.
7. Chain guide 8. Spacer 9. Front chain case
10. Crankshaft pully 11. Front oil seal 12. Oil pump
13. Primary timing chain 14. Oil pump drive sprocket 15. Crankshaft sprocket
16. Secondary timing chain 17. Rear chain case 18. Power steering pump
JEM131G
JEM132G

EM-174
[YD22DDTi]
CYLINDER HEAD
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 supply pump fuse [ENG CONT (20A)].
e. Connect battery negative terminal.
f. Using CONSULT-II make sure no error code is indicated for items of self-diagnosis.
Removal and InstallationEBS00BPM
CAUTION:
Apply new engine oil to parts marked in illustration before installation.
REMOVAL
1. Remove drain coolant. Refer toCO-30, "Changing Engine Coolant".
2. Remove the following parts:
lCharge air cooler (Refer toEM-114, "Removal and Installation".)
lRocker cover (Refer toEM-147, "Removal and Installation".)
lAir cleaner and air duct (Refer toEM-112, "Removal and Installation".)
lVacuum pump (Refer toEM-131, "Removal and Installation".)
lInjection tube, spill tube and fuel injector (Refer toEM-135, "Removal and Installation".)
lIntake manifold (Refer toEM-115, "Removal and Installation".)
lExhaust manifold (Refer toEM-119, "Removal and Installation".)
lSecondary timing chain (Refer toEM-158, "Removal and Installation".)
lCamshaft (Refer toEM-149, "Removal and Installation".)
SBIA0193E
1. Glow plug 2. Cylinder head assembly 3. Cylinder head bolt
4. Thermal transmitter 5. Engine coolant temperature sensor 6. Gasket
7. Water outlet 8. Glow plate

CYLINDER HEAD
EM-177
[YD22DDTi]
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*: Measured with head bolts tightened
2. Apply a continuous bead of Genuine Liquid Gasket or equivalent
on the surface shown in the figure.
A: Apply bead so that it does not protrude into oil passage. Refer
toEM-103, "
Precautions for Liquid Gasket".
B: Miniimize the overlapping area of the bead, with start and end
areas of bead as shown in the figure.
Apply so that the portion marked * comes at an external loca-
tion but cannot be viewed externally after engine is assembled.
3. Install cylinder head assembly.
lTighten bolts in numerical order as shown in the figure
according to the following procedure:
a. Apply engine oil to bolt threads and seat surfaces.
b. Tighten bolts to 29 to 38 N·m (2.9 to 3.9 kg-m, 21 to 28 ft-lb).
c. Tighten 180°to 185°[target: 180°] (angular tightening).
d. Loosen completely to 0 N·m (0 kg-m, 0 in-lb) in the reverse order
of that shown in the figure.
e. Tighten bolts to 35 to 44 N·m (3.5 to 4.5 kg-m, 26 to 32 ft-lb).
f. Tighten 90°to 95°[target: 90°] (angular tightening)
g. Tighten another 90°to 95°[target: 90°] (angular tightening).
lWhen an angle wrench is not used, paint an alignment
mark on the head of cylinder head bolt and cylinder head
surface before tightening. Check the angle with a protrac-
tor.
4. Install glow plug.
lTo avoid damage, glow plugs should be removed only
when required.
lHandle with care to avoid applying shock. When dropped
from approx. 100 mm (3.94 in) or higher, always replace
with a new one.
lBefore installing, remove carbon depositing on mounting hole of glow plug with a reamer.
5. Install engine coolant temperature sensor and thermal transmitter.
Less than 0.255 - 0.280 (0.0100 - 0.0110) 0.925 (0.0364) 2 No
Less than 0.280 - 0.305 (0.0110 - 0.0120) 0.950 (0.0374) 3 No
Less than 0.305 - 0.330 (0.0120 - 0.0130) 0.975 (0.0384) 1 Yes
Less than 0.330 - 0.355 (0.0130 - 0.0140) 1.000 (0.0394) 2 Yes
More than 0.355 (0.0140) 1.025 (0.0404) 3 Yes
JEM167G
JEM149G
JEM166G