timing belt NISSAN PATROL 2006 Service Manual

ENGINE CONTROL SYSTEMSECTION
EC
CONTENTS
DIAGNOSTIC TROUBLE CODE INDEX .........................1
Alphabetical & Numerical Index for DTC ....................1
PRECAUTIONS AND PREPARATION ............................2
Special Service Tools ..................................................2
Commercial Service Tool .............................................3
Supplemental Restraint System (SRS) ``AIR
BAG'' and ``SEAT BELT PRE-TENSIONER''...............4
PRECAUTIONS AND PREPARATION ............................5
Engine Fuel & Emission Control System ....................5
Precautions ..................................................................6
ENGINE AND EMISSION CONTROL OVERALL
SYSTEM ........................................................................\
...8
ECCS-D Component Parts Location ...........................8
Circuit Diagram .......................................................... 11
System Diagram ........................................................12
Vacuum Hose Drawing ..............................................13
System Chart .............................................................14
ENGINE AND EMISSION BASIC CONTROL
SYSTEM DESCRIPTION ...............................................15
Fuel Injection System ................................................15
Fuel Injection Timing System ....................................18
Air Conditioning Cut Control ......................................19
Fuel Cut Control (at no load & high engine
speed) ........................................................................\
20
CRANKCASE VENTILATION SYSTEM ........................21
Description .................................................................21
Inspection...................................................................21
INJECTION NOZZLE .....................................................22
Removal and Installation ...........................................22
Disassembly (No. 2 - 4 nozzles) ...............................22
Inspection (No. 2 - 4 nozzles) ...................................23
Cleaning (No. 2 - 4 nozzles) .....................................23
Assembly (No. 2 - 4 nozzles) ....................................24
Test and Adjustment ..................................................25
ELECTRONIC FUEL INJECTION PUMP ......................27
Removal .....................................................................27
Installation ..................................................................28
Disassembly and Assembly .......................................29
ON BOARD DIAGNOSTIC SYSTEM
DESCRIPTION ...............................................................30
DTC and MIL Detection Logic ...................................30
Diagnostic Trouble Code (DTC) ................................30 Malfunction Indicator Lamp (MIL) ..............................31
CONSULT ..................................................................36
TROUBLE DIAGNOSIS Ð Introduction ......................42
Introduction ................................................................42
Diagnostic Worksheet ................................................43
TROUBLE DIAGNOSIS Ð Work Flow ........................44
Work Flow ..................................................................44
Description for Work Flow .........................................45
TROUBLE DIAGNOSIS Ð Basic Inspection ..............46
Basic Inspection.........................................................46
TROUBLE DIAGNOSIS Ð General Description ........48
Symptom Matrix Chart ...............................................48
CONSULT Reference Value in Data Monitor
Mode ........................................................................\
..51
Major Sensor Reference Graph in Data Monitor
Mode ........................................................................\
..53
ECM Terminals and Reference Value .......................54
TROUBLEDIAGNOSISFORPOWERSUPPLY ..........63
MainPowerSupplyandGroundCircuit....................63
TROUBLE DIAGNOSIS FOR ``CAM POS SEN
(PUMP)''(DTC11) .........................................................69
CamshaftPositionSensor(CMPS)(PUMP).............69
TROUBLEDIAGNOSISFOR``MASSAIRFLOW
SEN''(DTC12) ..............................................................74
MassAirFlowSensor(MAFS)..................................74
TROUBLEDIAGNOSISFOR``COOLANTTEMP
SEN''(DTC13) ..............................................................79
EngineCoolantTemperature(ECT)Sensor.............79
TROUBLEDIAGNOSISFOR``VEHICLESPEED
SEN''(DTC14) ..............................................................83
VehicleSpeedSensor(VSS)....................................83
TROUBLEDIAGNOSISFOR``CONTSLEEVPOS
SEN''(DTC15) ..............................................................87
ControlSleevePositionSensor(CSPS)...................87
TROUBLEDIAGNOSISFOR``ADJUST
RESISTOR''(DTC17) ...................................................92
AdjustmentResistor...................................................92
TROUBLEDIAGNOSISFOR``F/INJF/B2''
(DTC18),``F/INJF/B''(DTC22),``ELECTRIC
GOV''(DTC25) ..............................................................96
ElectricGovernor.......................................................96
EC

Removal
1. Remove battery.
Disconnect electronic injection pump harness connectors.
2. Set No. 1 piston at TDC on its compression stroke.
TDC: Crankshaft pulley notch without painted mark
3. Remove fuel hoses (supply, return and spill) and injection
tubes.
4. Remove air duct and injection pump timing belt cover.
5. Remove injection pump timing belt.
Refer to EM section (``Injection Pump Timing Belt'').
6. Remove injection pump sprocket with Tool.
+Remove key from injection pump shaft and store safely.
SEF663V
SEF664V
SEF665V
ELECTRONIC FUEL INJECTION PUMP
EC-27

7. Remove injection pump assembly.
Installation
1. Install key on injection pump shaft, then install injection pump
sprocket.
+Use alignment mark on sprocket.
2. Install injection pump timing belt.
Refer to EM section (``Injection Pump Timing Belt'').
3. Adjust injection timing.
Refer to ``Basic Inspection'', EC-46.
4. Install all parts removed.
SEF666V
SEF667V
ELECTRONIC FUEL INJECTION PUMP
Removal (Cont'd)
EC-28

ENGINE MECHANICAL
SECTION
EM
CONTENTS
PRECAUTIONS...............................................................1
Parts Requiring Angular Tightening .............................1
Liquid Gasket Application Procedure ..........................1
PREPARATION................................................................2
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING.....................................................6
NVH Troubleshooting Chart Ð Engine Noise .............7
OUTER COMPONENT PARTS.......................................8
COMPRESSION PRESSURE........................................10
Measurement of Compression Pressure ...................10
OIL PAN.........................................................................13
Removal .....................................................................13
Installation ..................................................................14
TIMING BELT.................................................................15
Removal .....................................................................15
Inspection...................................................................17
Installation ..................................................................18
OIL SEAL REPLACEMENT..........................................20
TURBOCHARGER.........................................................23
Removal and Installation ...........................................23
Inspection...................................................................24CHARGE AIR COOLERS..............................................27
CYLINDER HEAD..........................................................28
Removal .....................................................................29
Disassembly...............................................................30
Inspection...................................................................31
Assembly ...................................................................37
Installation ..................................................................37
VALVE CLEARANCE....................................................40
Checking ....................................................................40
Adjusting ....................................................................41
ENGINE REMOVAL.......................................................43
Removal .....................................................................44
Installation ..................................................................44
CYLINDER BLOCK.......................................................45
Disassembly...............................................................46
Inspection...................................................................46
Assembly ...................................................................53
SERVICE DATA AND SPECIFICATIONS (SDS)..........56
General Speci®cations ...............................................56
Inspection and Adjustment ........................................56
EM

NVH Troubleshooting Chart Ð Engine Noise
Use the chart below to help you ®nd the cause of the problem.
1. Locate the area where noise occurs.
2. Con®rm the type of noise.
3. Specify the operating condition of engine.
4. Check speci®ed noise source.
If necessary, repair or replace these parts.
Location of
noiseType of
noiseOperating condition of engine
Source of
noiseCheck itemReference
page Before
warm-upAfter
warm-upWhen
startingWhen
idlingWhen
racingWhile
driving
To p o f
engine
Rocker
cover
Cylinder
headTicking or
clickingCAÐABÐTappet
noiseValve clearance EM-41
Rattle C A Ð A B CCamshaft
bearing
noiseCamshaft journal clearance
Camshaft runoutEM-37
Crankshaft
pulley
Cylinder
block (Side
of engine)
Oil panSlap or
knockÐAÐB BÐPiston pin
noisePiston and piston pin clear-
ance
Connecting rod bushing
clearanceEM-47, 53
Slap or rap A Ð Ð B B APiston slap
noisePiston-to-bore clearance
Piston ring side clearance
Piston ring end gap
Connecting rod bend and
torsionEM-48, 49
Knock A B C B B BConnecting
rod bearing
noiseConnecting rod bushing
clearance (Small end)
Connecting rod bearing
clearance (Big end)EM-52, 53
Knock A B Ð A B CMain bear-
ing noiseMain bearing oil clearance
Crankshaft runoutEM-51
Timing belt
coverWhine or
hissingCAÐAAÐTiming belt
noise (too
tight)
Loose timing belt
Belt contacting caseEM-18
Clatter A B Ð C A ÐTiming belt
noise (too
loose)
Front of
engineSqueaking
or ®zzingABÐBÐCOther drive
belts
(Sticking or
slipping)Drive belts de¯ection
*1
CreakingABABABOther drive
belts (Slip-
ping)Idler pulley bearing operation
Squall
CreakABÐBABWater pump
noiseWater pump operation *2
A: Closely related B: Related C: Sometimes related Ð: Not related
*1: MA section (``Checking Drive Belts'', ``ENGINE MAINTENANCE'')
*2: LC section (``Water Pump Inspection'', ``ENGINE COOLING SYSTEM'')
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
EM-8

CAUTION:
+Do not bend or twist timing belt.
+After removing timing belt, do not turn crankshaft and
camshaft separately because valves will strike piston
heads.
+Make sure that timing belt, camshaft sprocket, crankshaft
sprocket, idler pulley, injection pump pulley and belt ten-
sioner are clean and free from oil and water.
+Align white lines on timing belt with punch mark on cam-
shaft sprocket, crankshaft sprocket and injection pump
pulley.
+Installation should be carried out when engine is cold.
Removal
1. Remove radiator shroud.
2. Remove the following belts.
+Power steering drive belt
+A/C compressor drive belt
+Alternator drive belt
3. Remove cooling fan coupling and water pump pulley.
SMA767BA
TIMING BELT
EM-16

4. Set No. 1 cylinder at bottom dead center (BDC) on its expan-
sion stroke, as shown.
5. Remove the starter motor and wipe off the liquid gasket remain-
ing on the connecting part.
6. Install the ring gear stopper using the bolt holes for ®xing the
starter motor.
7. Remove crankshaft pulley using puller.
Be sure to securely attach puller jaws. Attach jaws only to the
rear side of pulley.
8. Remove front cover.
9. Remove tensioner spring and loosen belt tensioner lock nut.
10. Remove timing belt.
After removing timing belt, do not turn crankshaft and cam-
shaft separately, because valves will strike piston heads.
SMA768B
SMA769B
SMA770B
TIMING BELT
Removal (Cont'd)
EM-17

Inspection
Visually check the condition of timing belt.
Replace if any abnormality is found.
Item to check Problem Cause
Tooth is broken/tooth root
is cracked.
SEM394A
+Camshaft jamming
+Distributor jamming
+Damaged camshaft/crankshaft oil seal
Back surface is cracked/
worn.
SEM395A
+Tensioner jamming
+Overheated engine
+Interference with belt cover
Side surface is worn.
+Belt corners are worn and round.
+Wicks are frayed and coming out.
SEM396A
+Improper installation of belt
+Malfunctioning crankshaft pulley plate/timing belt
plate
Teeth are worn.
+Canvas on tooth face is worn down.
+Canvas on tooth is ¯uffy, rubber layer is worn
down and faded white, or weft is worn down and
invisible.
SEM397A
+Poor belt cover sealing
+Coolant leakage at water pump
+Camshaft not functioning properly
+Distributor not functioning properly
+Excessive belt tension
Oil/Coolant or water is
stuck to belt. Ð+Poor oil sealing of each oil seal
+Coolant leakage at water pump
+Poor belt cover sealing
TIMING BELT
EM-18

Installation
1. Con®rm that No. 1 cylinder is set at BDC on its expansion
stroke as follows:
Con®rm that crankshaft key is at the bottom.
2. Set timing belt.
a. Ensure timing belt, sprockets and pulleys are clean and
free from oil or water. Do not bend or twist timing belt too
much.
b. Align white lines on timing belt with matching mark on
camshaft sprocket, crankshaft sprocket and injection
pump pulley.
c. Point arrow on timing belt toward front.
SMA771B
TIMING BELT
EM-19

3. Install tensioner spring and tighten belt tensioner lock nut.
:32-40Nzm
(3.3 - 4.1 kg-m, 24 - 30 ft-lb)
4. Install front cover.
5. Install crankshaft pulley.
6. Install water pump pulley and cooling fan coupling.
7. Apply liquid gasket to the connecting surface and install the
starter motor.
Use Genuine Liquid Gasket or equivalent.
8. Install drive belts and check drive belt de¯ections by pushing
midway between pulleys.
Refer to MA section (``Checking Drive Belts'').
SMA770B
SMA015C
TIMING BELT
Installation (Cont'd)
EM-20