alternator belt NISSAN X-TRAIL 2003 Service User Guide

ENGINE MAINTENANCE (YD22DDTI)
MA-27
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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 specified value 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 engine coolant 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
A/C 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
A/C compressor belt Adjusting bolt on idler pulley
Alternator and water pump belt Adjusting bolt on alternator

MA-28
ENGINE MAINTENANCE (YD22DDTI)

A/C COMPRESSOR BELT
1. Remove RH engine undercover.
2. Loosen idler pulley lock nut (A).
3. Turn adjusting bolt (B) to adjust.

Refer to MA-27, "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-27, "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. Remove engine undercover.
2. Open radiator drain plug at the bottom of radiator, and remove
radiator cap.
NOTE:

Be careful not to allow engine coolant to contact drive belts.

Cover the exhaust tube heat shield to prevent from splashing
engine coolant.
When draining all the engine coolant in the system, also perform the following steps.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

SERVICE DATA AND SPECIFICATIONS (SDS)
MA-47
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SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
Standard and LimitELS000K3
BELT DEFLECTION AND TENSION
QR20DE and QR25DE
YD22DDTi
*: When engine is cold.
RADIATOR
Unit: kPa (bar, kg/cm2 , psi)
ENGINE COOLANT CAPACITY
QR20DE and QR25DE
Unit: (lmp qt)
YD22DDTi
Unit: (lmp qt)
ENGINE OIL CAPACITY (APPROXIMATE)
QR20DE and QR25DE
Unit: (lmp qt)
YD22DDTi
Unit: (lmp qt)
SPARK PLUG
QR20DE and QR25DE
Tensions of drive belts Auto-adjustment by auto-tensioner
Applied beltBelt deflection with 98 N (10 kg, 22 lb) force applied* mm (in)
New Adjusted Limit for re-adjusting
A/C 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)
Cap relief pressureStandard 78 - 98 (0.78 - 0.98, 0.8 - 1.0, 11 - 14)
Limit 59 (0.59, 0.6, 9)
Leakage test pressure 157 (1.57, 1.6, 23)
Coolant capacity (With reservoir tank at “MAX” level) 7.1 (6-1/4)
Reservoir tank coolant capacity (At “MAX” level) 0.6 (1/2)
Coolant capacity (With reservoir tank at “MAX” level) 9.5 (8-3/8)
Reservoir tank coolant capacity (At “MAX” level) 0.6 (1/2)
Drain and refill With oil filter change 3.9 (3-3/8)
Without oil filter change 3.5 (3-1/8)
Dry engine (Overhaul)4.5 (4)
Drain and refill With oil filter change 5.2 (4-5/8)
Without oil filter change 4.9 (4-3/8)
Dry engine (Overhaul)6.3 (5-1/2)
MakeNGK
Standard typeLFR5A-11
Hot typeLFR4A-11
Cold typeLFR6A-11
Spark plug gap mm (in) 1.0 - 1.1 (0.039 - 0.043)

SC-1
STARTING & CHARGING SYSTEM
K ELECTRICAL
CONTENTS
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SECTION
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STARTING & CHARGING SYSTEM
PRECAUTIONS .......................................................... 2
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 2
Wiring Diagrams and Trouble Diagnosis .................. 2
BATTERY .................................................................... 3
How to Handle Battery ............................................. 3
METHODS OF PREVENTING OVER-DIS-
CHARGE ............................................................... 3
CHECKING ELECTROLYTE LEVEL .................... 3
SPECIFIC GRAVITY CHECK ............................... 4
Battery Test and Charging Chart .............................. 5
CHART I ................................................................ 5
CHART II ............................................................... 6
A: SLOW CHARGE ............................................... 7
B: STANDARD CHARGE ...................................... 8
C: QUICK CHARGE ............................................ 10
Removal and Installation ......................................... 11
CHARGING SYSTEM ............................................... 12
System Description ................................................ 12
Wiring Diagram — CHARGE — /WITH GASOLINE
ENGINE ................................................................. 13
Wiring Diagram — CHARGE — /WITH DIESEL
ENGINE ................................................................. 14
Trouble Diagnoses ................................................. 15
WITH IC REGULATOR ....................................... 15
MALFUNCTION INDICATOR .............................. 15
Removal and Installation ........................................ 16
REMOVAL (QR ENGINE MODELS) ................... 16
REMOVAL (YD ENGINE MODELS) ................... 16
INSTALLATION ................................................... 16
Disassembly and Assembly ................................... 17
QR ENGINE MODELS ........................................ 17
YD ENGINE MODELS ........................................ 18
Disassembly ........................................................... 18
REAR COVER .................................................... 18REAR BEARING ................................................. 18
Inspection ............................................................... 19
ROTOR CHECK .................................................. 19
BRUSH CHECK .................................................. 19
PULLEY CHECK (WITH CLUTCH TYPE) ........... 19
STATOR CHECK ................................................. 19
Assembly ................................................................ 20
RING FITTING IN REAR BEARING .................... 20
REAR COVER INSTALLATION ........................... 20
STARTING SYSTEM ................................................. 21
System Description ................................................. 21
M/T MODELS ...................................................... 21
A/T MODELS ....................................................... 21
Wiring Diagram — START —/M/T models ............. 22
Wiring Diagram — START —/A/T models .............. 23
Trouble Diagnoses ................................................. 24
Removal and Installation ........................................ 25
REMOVAL ........................................................... 25
INSTALLATION ................................................... 25
Disassembly and Assembly .................................... 26
QR ENGINE MODELS ........................................ 26
YD ENGINE MODELS ........................................ 28
Inspection ............................................................... 29
MAGNETIC SWITCH CHECK ............................. 29
PINION/CLUTCH CHECK ................................... 29
BRUSH CHECK .................................................. 29
YOKE CHECK ..................................................... 30
ARMATURE CHECK ........................................... 31
Assembly ................................................................ 32
PINION PROTRUSION LENGTH ADJUST-
MENT .................................................................. 32
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 34
Battery .................................................................... 34
Starter ..................................................................... 34
Alternator ................................................................ 34

SC-16
CHARGING SYSTEM

Removal and Installation EKS0031A
REMOVAL (QR ENGINE MODELS)
1. Disconnect the battery cable from the negative terminal.
2. Remove alternator drive belt. Refer to EM-13, "
Checking Drive Belts" in EM section.
3. Remove alternator harness mounting bolt, ground mounting
bolt, alternator connector and B terminal mounting nut.
4. Remove alternator mounting bolts.
5. Remove alternator assembly upward.
REMOVAL (YD ENGINE MODELS)
1. Disconnect the battery cable from the negative terminal.
2. Remove alternator harness mounting bolt, alternator connector
and B terminal mounting nut.
3. Remove drive belt. Refer to EM-131, "
Checking Drive Belts" in
EM section.
4. Remove alternator bracket mounting bolts and alternator
bracket.
5. Remove alternator mounting bolts.
6. Remove alternator assembly upward.
INSTALLATION
Note the following, and install in the reverse order of removal.

Install alternator, and check tension of belt. Refer to EM-13, "Tension Adjustment" (QR engine models) or
EM-131, "
Tension Adjustment" (YD engine models) in “ENGINE MECHANICAL (EM)” section.
CAUTION:
Be sure to tighten B terminal mounting nut carefully.
QR engine models
YD engine models
PKIA2496E
MEL948N
B terminal nut:
: 7.9 - 11.0 N·m (0.8 - 1.11 kg-m, 6.0 - 8.0 ft-lb)
Ground bolt:
: 2.3 - 2.6 N·m (0.23 - 0.27 kg-m, 20 - 23 in-lb)
Alternator mounting bolt:
: 59 - 69 N·m (6.1 - 7.1 kg-m, 45 - 51 ft-lb)
B terminal nut:
: 7.9 - 11.0 N·m (0.8 - 1.11 kg-m, 6.0 -8.0 ft-lb)
Ground bolt:
: 2.3 - 2.6 N·m (0.23 - 0.27 kg-m, 20 - 23 in-lb)
Alternator mounting bolt (upper side):
: 16 - 20 N·m (1.6 - 2.1 kg-m, 12 - 15 ft-lb)
Alternator mounting bolt (lower side):
: 38 - 50 N·m (3.8 - 5.1 kg-m, 28 - 36 ft-lb)

IDX-5
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IDX
ALPHABETICAL INDEX
Front Door Trim ................................................... EI-32
Front fog lamp .................................................... LT-52
Front passenger air bag .................................. SRS-35
Front seat .......................................................... SE-24
Front seat belt ...................................................... SB-3
Front seat belt pre-tensioner .... SB-2, SRS-3, SRS-40
Front side air bag ............................................. SRS-37
Front suspension ............................................... FSU-5
Front washer ...................................................... WW-4
Front wiper ......................................................... WW-4
FRPS - Wiring diagram .................... EC-999, EC-1309
FTS - Wiring diagram ...................... EC-994, EC-1304
FUEL - Wiring diagram ...................... EC-218, EC-225
Fuel check valve ................................ EC-473, EC-865
Fuel cut control (at no load high engine speed) EC-38,
EC-500
, EC-887, EC-1218
Fuel filler lid ...................................................... BL-103
Fuel filter .......................................... EC-890, EC-1221
Fuel filter replacement(QR20DEQR25DE) .......... FL-4
Fuel filter replacement(YD22DDTi) ....... FL-17, MA-31
Fuel gauge ............................................................ DI-4
Fuel injection control system ........... EC-885, EC-1216
Fuel injection system ......................... EC-216, EC-223
Fuel injector adjustment resistor .... EC-1115, EC-1404
Fuel injector and fuel tube(QR20DEQR25DE) . EM-32
Fuel injector and fuel tube(YD22DDTi) ............ EM-157
Fuel line inspection(QR20DEQR25DE) . FL-3, MA-23
Fuel line inspection(YD22DDTi) ............ FL-16, MA-31
Fuel pressure check ............................ EC-48, EC-510
Fuel pressure release .......................... EC-48, EC-510
Fuel pump .......... EC-443, EC-835, EC-890, EC-1127,
EC-1416
Fuel pump and gauge(QR20DEQR25DE) .......... FL-4
Fuel rail pressure sensor ................. EC-997, EC-1307
Fuel system(QR20DEQR25DE) .......................... FL-3
Fuel system(YD22DDTi) ..................................... FL-16
Fuel tank(QR20DEQR25DE) ............................ FL-11
Fuel tank(YD22DDTi) ......................................... FL-23
Fuel temperature sensor ................. EC-993, EC-1303
Fuse ................................................................... PG-12
Fuse and fusible link box ................................... PG-76
Fusible link ......................................................... PG-12
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Gauges ................................................................. DI-4
Gear components (M/T) ....................... MT-20, MT-25
Generator .......................................................... SC-12
Generator - See Alternator ................................ SC-12
Generic scan tool (GST) .................... EC-112, EC-931
Glass .................................................. GW-80, GW-83
GLOW - Wiring diagram EC-1070, EC-1170, EC-1458
Glow plug ....................................... EC-1169, EC-1457
Glow plug(YD22DDTi) ..................................... EM-152
Glow relay ...................... EC-1069, EC-1169, EC-1457
GPS antenna ..................................................... AV-43
Grille - See Exterior ............................................. EI-19
Ground distribution ............................................ PG-13
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H/AIM - Wiring diagram ...................................... LT-29
H/LAMP - Wiring diagram ........................... LT-4, LT-7
H/MIRROR - Wiring diagram ............................ GW-21
Harness connector ............................................. PG-70
Harness layout ................................................... PG-30
Headlamp ............................................................. LT-4
Headlamp aiming control .................................... LT-29
Headlamp leveler - See Headlamp aiming control .......
LT-29
Headlamp washer ............................................ WW-20
Headlining - See Roof trim .................................. EI-39
Heated oxygen sensor 1 .... EC-176, EC-183, EC-193,
EC-318
, EC-324, EC-611, EC-618, EC-786
Heated oxygen sensor 1 heater ......... EC-138, EC-771
Heated oxygen sensor 2 .... EC-201, EC-208, EC-330,
EC-338
, EC-792
Heated oxygen sensor 2 heater ......... EC-144, EC-776
Heated seat ........................................... SE-18, SE-21
HEATER - Wiring diagram ................................ MTC-6
Heater and cooling unit (Heater core) ............ ATC-131
Heater mirror ..................................................... GW-21
Heater system - Wiring diagram ....................... MTC-6
Heater unit (heater core) .. ATC-136, MTC-27, MTC-30
HFC134a (R134a) system precaution ............... ATC-4
HFC134a (R134a) system service procedure ATC-141
HFC134a (R134a) system service tools .......... ATC-15
HFC134a system service equipment precaution ..........
ATC-10
HO2S1 - Wiring diaram ...... EC-178, EC-186, EC-196,
EC-613
, EC-620
HO2S1H - Wiring diagram ............................... EC-140
HO2S2 - Wiring diagram .... EC-203, EC-211, EC-333,
EC-341
HO2S2H - Wiring diagram ............................... EC-146
Hood .................................................................. BL-12
Horn ................................................................. WW-25
HORN - Wiring diagram ................................... WW-25
How to erase DTC ........................... EC-514, EC-1223
How to erase DTC for OBD system ..... EC-63, EC-895
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IATS - Wiring diagram ...... EC-158
, EC-977, EC-1287
IATSEN - Wiring diagram ................................ EC-782
Identification ...................................... ATC-12, ATC-13
Idle air volume learning ........................ EC-46, EC-508
Idle speed ............. EC-79, EC-526, EC-905, EC-1231
Ignition coil ......................................... EC-417, EC-798
Ignition coil(QR20DEQR25DE) ....................... EM-29
Ignition control system ....................... EC-417, EC-798
Ignition timing ....................................... EC-79, EC-526
IGNSYS - Wiring diagram .................. EC-418, EC-799
ILL - Wiring diagram ........................................... LT-66
Illumination .......................................................... LT-66
In vehicle sensor ........... ATC-111, ATC-113, ATC-122
INJE/PW - Wiring diagram ............. EC-1158, EC-1446
INJECT - Wiring diagram . EC-429, EC-821, EC-1008,