engine NISSAN X-TRAIL 2001 Service Repair Manual

MA-24
ENGINE MAINTENANCE (QR20DE·QR25DE)
4. Apply engine oil to the oil seal circumference of the new oil filter.
5. Screw the oil filter manually until it touches the installation sur-
face, then tighten it by 2/3 turn.
6. After warming up the engine, check for engine oil leakage.
7. Check engine oil level and add engine oil. Refer to LU-7, "
ENGINE OIL" .
Checking and Changing Spark PlugsELS000K1
REMOVAL
1. Remove ignition coil. Refer to EM-29, "IGNITION COIL" .
2. Remove spark plug with suitable spark plug wrench.
CAUTION:
Do not drop or shock it.
INSPECTION AFTER REMOVAL
●Use standard type spark plug for normal condition.
●The hot type spark plug is suitable when fouling occurs with the standard type spark plug under conditions
such as.
–frequent engine starts.
–low ambient temperatures.
●The cold type spark plug is suitable when spark knock occurs with the standard type spark plug under
conditions such as.
–extended highway driving.
–frequent high engine revolution.
SMA010
Oil filter:
: 14.7 - 20.5 N·m (1.5 - 2.1 Kg-m, 11 - 15 ft-lb)
SMA229B
SEM294A
MakeNGK
Standard typeLFR5A-11
Hot typeLFR4A-11
Cold typeLFR6A-11

ENGINE MAINTENANCE (QR20DE·QR25DE)
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Check plug gap of each spark plug. Adjust or replace if necessary.
●Use a wire brush for cleaning, if necessary.
INSTALLATION
Install in the reverse order of removal.
Checking EVAP Vapor LinesELS000K2
1. Visually inspect EVAP vapor lines for improper attachment and for cracks, damage, loose connections,
chafing and deterioration.
2. Inspect fuel tank filler cap vacuum relief valve for clogging, sticking, etc.
Refer to EC-747, "
EVAPORATIVE EMISSION LINE DRAWING" (QR25DE), EC-1113, "EVAPORATIVE
EMISSION LINE DRAWING" (QR20DE). Spark plug gap: 1.0 - 1.1 mm (0.039 - 0.043 in)
SMA476
Spark plug:
: 19.6 - 29.4 N·m (2.0 - 3.0 kg-m, 15 - 21 ft-lb)

MA-26
ENGINE MAINTENANCE (YD22DDTI)
ENGINE MAINTENANCE (YD22DDTI)
PFP:00100
Checking Drive BeltsELS000CC
●Before inspecting the engine, make sure the engine has cooled
down; wait approximately 30 minutes after the engine has been
stopped.
●Visually inspect all belts for wear, damage or cracks on contact-
ing surfaces and edge areas.
●When measuring deflection, apply 98 N (10 kg, 22 lb) at the
marked point ( ).
CAUTION:
●When checking belt deflection immediately after installa-
tion, first adjust it to the specified value. Then, after turn-
ing the crankshaft two turns or more, re-adjust to the
specified value to avoid variation in deflection between
pulleys.
●Tighten idler pulley lock nut by hand and measure deflection without looseness.
Belt Deflection:
*: When engine is cold.
Tension AdjustmentELS000K5
Adjust belts with the parts shown below.
CAUTION:
●When a new belt is installed as a replacement, adjust it to the value specified under “New” value
because of insufficient adaptability with pulley grooves.
●If the belt deflection of the current belt is out of the “Limit for re-adjusting”, adjust to the
“Adjusted” value.
●When checking belt deflection immediately after installation, first adjust it to the specified value.
Then, after turning crankshaft two turns or more, re-adjust it to the specified value to avoid varia-
tion in deflection between pulleys.
●Make sure the belts are fully fitted into the pulley grooves during installation.
●Handle with care to avoid smearing the belts with engine oil or cooling water etc.
●Do not twist or bend the belts with strong force.
PBIC1251E
Applied beltBelt deflection with 98 N (10 kg, 22 lb) force applied* mm (in)
New Adjusted Limit for re-adjusting
Air conditioner compressor belt 4 - 5 (0.16 - 0.20) 6 - 7 (0.24 - 0.28) 8.5 (0.335)
Alternator and water pump belt 9.0 - 10.5 (0.354 - 0.413) 11.0 - 12.5 (0.433 - 0.492) 16.5 (0.650)
Applied belt Belt adjustment method
Air conditioner compressor belt Adjusting bolt on idler pulley
Alternator and water pump belt Adjusting bolt on alternator

ENGINE MAINTENANCE (YD22DDTI)
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AIR CONDITIONER COMPRESSOR BELT
1. Remove RH splash cover (with undercover attached).
2. Loosen idler pulley lock nut (A).
3. Turn adjusting bolt (B) to adjust.
●Refer to MA-26, "Checking Drive Belts" .
4. Tighten lock nut (A).
ALTERNATOR AND WATER PUMP BELT
1. Loosen adjusting lock nut (C).
2. Loosen alternator fixing bolts (D) (each on front and rear).
3. Turn adjusting bolt (E) to adjust.
●Refer to MA-26, "Tension Adjustment" .
4. Tighten nut (C) and bolt (D) in this order.
Changing Engine CoolantELS000CD
WARNING:
●To avoid being scalded, never change the engine coolant when the engine is hot.
●Wrap a thick cloth around cap and carefully remove the cap. First, turn the cap a quarter of a turn
to release built-up pressure. Then turn the cap all the way.
DRAINING ENGINE COOLANT
1. Open radiator drain plug at the bottom of radiator, and remove
radiator cap.
●Be careful not to allow engine coolant to contact drive
belts.
●Cover the exhaust tube heat shield to prevent from splashing
engine coolant.Nut A:
: 31 - 39 N-m (3.1 - 4.0 kg-m, 23 - 28 ft-lb)
PBIC1252E
Nut C:
: 19 - 24 N-m (1.9 - 2.5 kg-m, 14 - 18 ft-lb)
Bolt D:
: 44 - 57 N-m (4.4 - 5.9 kg-m, 32 - 42 ft-lb)
PBIC0236E

MA-28
ENGINE MAINTENANCE (YD22DDTI)
2. Open drain plug on cylinder block and air relief plug.
3. Remove reservoir tank, drain engine coolant, then clean reser-
voir tank.
4. Check drained engine coolant for contaminants such as rust,
corrosion or discoloration.
If contaminated, flush engine cooling system. Refer to MA-29,
"FLUSHING COOLING SYSTEM" .
REFILLING ENGINE COOLANT
1. Install reservoir tank, radiator drain plug and cylinder block drain plug.
●Apply sealant to the thread of cylinder block drain plug.
Use Genuine Liquid Gasket or equivalent.
2. Fill radiator slowly with engine coolant until engine coolant spills
from the air relief plugs, then install air relief plugs.
CAUTION:
If the filling rate is too fast, this could lead to air being
mixed in the engine coolant. Be sure to fill the engine cool-
ant slowly according to the rate indicated above.
●Replace the copper washer of the air bleeding plug.
●Use genuine Nissan anti-freeze engine coolant or equiva-
lent mixed with water (distilled or demineralized).
Refer to MA-16, "
RECOMMENDED FLUIDS AND LUBRICANTS".
●Pour engine coolant through engine coolant filler neck slowly of less than 2 (1-3/4 lmp qt) a
minute to allow air in system to escape.
SBIA0129E
SBIA0130E
Cylinder block drain plug:
: 7.8 - 11.8 N·m (0.8 -1.2 kg-m , 69 - 104 in-lb)
Air relief plug:
: 6.7 - 7.9 N·m (0.68 - 0.81 kg-m, 59 - 70 in-lb)
Engine coolant capacity (With reservoir tank):
9.5 (8-3/8 Imp qt)
SMA182B
Reservoir tank:
0.6 (1/2 lmp qt)

ENGINE MAINTENANCE (YD22DDTI)
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3. Fill reservoir tank to specified level.
4. Warm up engine to normal operating temperature without radia-
tor cap installed.
●If engine coolant overflows radiator filler hole, install
radiator cap.
5. Run engine at 3,000 rpm for 10 seconds and return to idle speed
with radiator cap installed.
●Repeat two or three times.
Watch engine coolant temperature gauge so as not to overheat
the engine.
6. Stop engine and cool down to less than approximately
50°C(122°F).
●Cool down using a fan to reduce the time.
●If necessary, refill radiator up to filler neck with engine coolant.
7. Refill reservoir tank to MAX level line with engine coolant.
8. Repeat steps 5 through 7 two or more times with radiator cap installed until engine coolant level no longer
drops.
9. Check cooling system for leaks with engine running.
10. Warm up engine, and check for sound of engine coolant flow while running engine from idle up to 3,000
rpm with heater temperature controller set at several position between COOL and WARM.
●Sound may be noticeable at heater unit.
11. If sound is heard, bleed air from cooling system by repeating steps 5 through 7 until engine coolant level
no longer drops.
●Clean excess engine coolant from engine.
FLUSHING COOLING SYSTEM
1. Fill radiator with water until water spills from the air relief hole, then close air relief flag. Fill radiator and
reservoir tank with water and reinstall radiator cap.
2. Run engine and warm it up to normal operating temperature.
3. Rev engine two or three times under no-load.
4. Stop engine and wait until it cools down.
5. Drain water.
6. Repeat steps 1 through 5 until clear water begins to drain from radiator.
Checking Cooling SystemELS000C4
WARNING:
Never remove the radiator cap when the engine is hot. Serious burns could occur from high pressure
engine coolant escaping from the radiator. Wrap a thick cloth around the cap. Slowly turn it a quarter
turn to allow built-up pressure to escape. Carefully remove the cap by turning it all the way.
CHECKING COOLING SYSTEM HOSES
Check hoses for improper attachment, leaks, cracks, damage, loose connections, chafing and deterioration.
CHECKING RADIATOR
Check radiator for mud or clogging. If necessary, clean radiator as follows.
●Be careful not to bend or damage the radiator fins.
●When radiator is cleaned without removal, remove all surrounding parts such as cooling fan, radiator
shroud and horns. Then tape the harness and connectors to prevent water from entering.
1. Apply water by hose to the back side of the radiator core vertically downwards.
2. Apply water again to all radiator core surface once per minute.
3. Stop washing if any stains no longer flow out from the radiator.
4. Blow air into the back side of radiator core vertically downwards.
●Use compressed air lower than 490 kpa (4.9 bar, 5 kg/cm2 , 71psi) and keep distance more than 30
cm(11.8 in).
SMA412B

MA-30
ENGINE MAINTENANCE (YD22DDTI)
5. Blow air again into all the radiator core surface once per minute until no water sprays out.
CHECKING RADIATOR CAP
●Check that there is no dirt or damage on the valve seat of the radiator cap negative-pressure valve.
●Check that there are no unusualness in the opening and closing
conditions of the negative-pressure valve.
●Pull the negative pressure valve to open it.
●Check that it close completely when released.
●Check radiator cap relief pressure.
●When connecting the radiator cap to the tester, apply engine
coolant to the cap seal part.
●Replace the radiator cap if there is an unusualness in the nega-
tive-pressure valve, or if the open-valve pressure is outside of the standard values.
CHECKING RADIATOR SYSTEM FOR LEAKS
To check for leakage, apply pressure to the cooling system with a
tester.
WARNING:
Never remove the radiator cap when the engine is hot. Serious
burns could occur from high pressure engine coolant escaping
from the radiator.
CAUTION:
Higher pressure than specified may cause radiator damage.
Checking Fuel LinesELS000CE
Inspect fuel lines, filler cap and tank for improper attachment, leaks,
cracks, damage, loose connections, chafing or deterioration.
If necessary, repair or replace faulty parts.
SMA967B
Standard:
78 - 98 kpa (0.78 - 0.98 bar, 0.8 - 1.0 kg/cm
2 , 11 - 14
psi)
Limit:
59kpa (0.59 bar, 0.6 kg/cm
2 , 9 psi)
SLC135B
Testing pressure:
157 kPa (1.57 bar 1.6 kg/cm
2 , 23 psi)
SLC134B
SMA803A

ENGINE MAINTENANCE (YD22DDTI)
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Changing Fuel FilterELS000CF
REMOVAL
1. Remove air duct and upper air cleaner case.
2. Remove fuel filter protector.
3. Remove fuel hoses from fuel filter bracket.
CAUTION:
Plug the pipe to prevent fuel from draining.
4. Remove fuel filter with bracket.
CAUTION:
Do not splash fuel during removal. If fuel is splashed,
immediately wipe it off.
5. Using band-type filter wrench (commercial service tool), remove
fuel filter.
6. Turn fuel filter upside down to drain fuel.
7. Remove drain plug from fuel filter.
INSTALLATION
Install in reverse order of removal, paying attention to following:
●Replace O-ring on drain plug with new one.
●Screw the fuel filter by hand until packing contacts sealing surface of bracket. Then tighten it by turning
approximately 2/3 turn.
●After installation, bleed air from fuel path. Refer to FL-16, "Air Bleeding" .
●Check for fuel leakage with running engine.
SBIA0134E
SBIA0135E
SBIA0136E
Fuel filter drain plug:
: 3.9 - 5.9 N·m (0.4 - 0.6 kg-m, 35 - 52 in-lb)

MA-32
ENGINE MAINTENANCE (YD22DDTI)
Changing Air Cleaner Filter
ELS000CG
VISCOUS PAPER TYPE
The viscous paper type air cleaner filter does not require any clean-
ing operation between renewal.
Changing Engine OilELS000CH
WARNING:
●Be careful not to burn yourself, as the engine oil is hot.
●Prolonged and repeated contact with used engine oil may
cause skin cancer: try to avoid direct skin contact with
used engine oil. If skin contact is made, wash thoroughly
with soap or hand cleaner as soon as possible.
1. Warm up engine, put vehicle horizontally and check for engine
oil leakage from engine components.
2. Stop engine and wait for 10 minutes.
3. Remove drain plug and oil filler cap.
4. Drain engine oil.
●Install drain plug and refill with new engine oil.
Engine oil specification and viscosity:
●API grade CF-4.
●ACEA B1, B3, B4, B5
●Refer to MA-16, "RECOMMENDED FLUIDS AND LUBRI-
CANTS" .
Engine oil capacity (Approximate):
●The refill capacity depends on the engine oil temperature and drain time. Use these specifications for
reference only.
Always use the dipstick to the determine when the proper amount of engine oil is in the engine.
CAUTION:
●Be sure to clean drain plug and install with new washer.
●The refill capacity depends on the engine oil temperature and drain time. Use these specifica-
tions for reference only.
Always use the dipstick to the determine when the proper amount of engine oil is in the
engine.
5. Warm up engine and check area around drain plug and oil filter for engine oil leakage.
6. Stop engine and wait for 10 minutes.
7. Check engine oil level. Refer to LU-18, "
ENGINE OIL" .
PBIC0526E
PBIC0527E
Drain and refillWith oil filter change
5.2 (4-5/8 Imp qt)
Without oil filter change
4.9 (4-3/8 Imp qt)
Dry engine (engine overhaul)6.3 (5-1/2 Imp qt)
Oil pan drain plug:
: 29 - 39 N·m (3.0 - 4.0 kg-m, 22 - 29 ft-lb)
SBIA0122E

ENGINE MAINTENANCE (YD22DDTI)
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Changing Oil FilterELS000CI
REMOVAL
CAUTION:
●Be careful not to get burned when the engine and engine oil
are hot.
●When removing, prepare a shop cloth to absorb any engine
oil leakage or spillage.
●Do not allow engine oil to adhere to the drive belts.
●Completely wipe off any engine oil that adhere to the engine
and the vehicle.
1. Using a socket wrench [plane-to-plane width: 17 mm (0.67 in)],
loosen the filter body approximately four turns.
2. Drain the engine oil after matching the "DRAIN" arrow mark at
the bottom of the filter body to the protrusion on the oil filter
bracket.
●Catch the engine oil with a pan or cloth.
CAUTION:
●The drained engine oil flows over the right surface of
the filter body.
●Completely wipe clean any engine oil remaining on the
filter body or vehicle.
3. Remove the filter body, then remove the oil filter.
PBIC1248E
JLC290B
JLC291B