Head NISSAN ALMERA N15 1995 Workshop Manual
[x] Cancel search | Manufacturer: NISSAN, Model Year: 1995, Model line: ALMERA N15, Model: NISSAN ALMERA N15 1995Pages: 1701, PDF Size: 82.27 MB
Page 837 of 1701
TROUBLEDIAGNOSIS FORDTC21
Ignition Signal
(Cont'd)
COMPONENT INSPECTION
Ignition coil
1. Disconnect ignitioncoilharness connector.
2. Check resistance asshown inthe figure.
If NG, replace ignitioncoil.
3. For checking secondary coil,remove distributor cap.
4. Check resistance betweenignitioncoilharness connector
terminal
q)
and thesecondary terminalonthe distributor
head. If NG, replace distributor.
Terminal
(j) -
CID
(Primary coil)
(j) -
secondary terminalondistrib-
utor head (Secondary coil) Resistance
[at25°C
(7rF))
Approximately 1Q
Approximately 10kQ
Power transistor
terminals ~
.B..
(615143121D
(~l..?)
SEF473Q
AEC841 Power
transistor
1. Disconnect powertransistor harnessconnector.
2. Check powertransistor resistance betweenterminals
@
and
@.
Terminals Resistance Result
NotOQ
OK
@
and
CID
OQ NG
If NG, replace distributor.
Resistor
1. Disconnect resistorharness connector.
2. Check resistance betweenterminals
CD
and
@.
Resistance: Approximately 2.2kQ[at25°C (77°F)]
If NG, replace resistor.
EC-118
Page 869 of 1701
TROUBLEDIAGNOSIS FORNON-DETECTABLE ITEMS
SYSTEM DESCRIPTION Idle
AirControl Valve(IACV) -Auxiliary Air
Control (AAC)Valve
Camshaft positionsensor Engine
speed
I
Mass
airflow sensor Amount
ofintake air
I
Engine coolant temperature sensor Engine
coolant temperature
~
I
Ignition switch Start
signal
I
Throttle positionsensor Throttle
position
~
I
Inhibitor switch(A/Tmodels)/
Park/Neutralposition
Neutral position switch(M/Tmodels) ECM
(ECCS
Air conditioner operation control
!
IACV-AAC valve
I
Air conditioner switch
module)
Power steering oilpressure switch Power
steering loadsignal
I
Battery
~
Battery voltage
Vehicle speedsensor Vehicle
speed
Cooling fanrelay Cooling
fanoperation
Load switch' Electrical
load
Blower fanswitch Blower
fanoperation
': Rear window defogger switchandheadlamp switch.
This system automatically controlsengineidlespeed toaspecified level.Idlespeed iscontrolled
through fineadjustment ofthe amount ofair which bypasses thethrottle valveviaIACV-AAC valve.The
IACV-AAC valveopens andcloses (except forEurope andIsrael), orrepeats ON/OFF operation (for
Europe andIsrael), according tothe signal sentfrom theECM. Thecamshaft positionsensordetects
the actual engine speedandsends asignal tothe ECM. TheECM thencontrols theIACV-AAC valveso
that engine speedcoincides withthetarget valuememorized inECM. Thetarget engine speedisthe
lowest speedatwhich theengine canoperate steadily. Theoptimum valuestored inthe ECM isdeter-
mined bytaking intoconsideration variousengineconditions, suchasduring warmup,deceleration, and
engine load(airconditioner, powersteering andcooling fanoperation).
COMPONENT DESCRIPTION
IACV-AAC valve-Except forEurope andIsrael
The IACV-AAC valveismoved byopen andclose signals from
the ECM. When theopen signal issent tothe valve, theamount
of air that willflow through thevalve increases. Themore air
that flows through thevalve, thehigher theidle speed. When
the close signal issent tothe valve. theamount ofair
decreases.
EC-150
Page 962 of 1701
BASICSERVICE PROCEDURE
Idle Speedllgnition TiminglldleMixtureRatio
Adjustment
PREPARATION
• Make surethatthefollowing partsarein
good order.
(1) Battery
(2) Ignition system
(3) Engine oiland coolant levels
(4) Fuses
(5) ECM harness connector
(6) Vacuum hoses
(7) Airintake system
(Oil filler cap,oillevel gauge, etc.)
(8) Fuel pressure
(9) Engine compression
(10) Throttle valve
Overall inspection sequence
INSPECTION
•
•
•
•
•
•
On
models equipped withairconditioner,
checks shouldbecarried outwhile theair
conditioner is"OFF".
On models equipped withautomatic
transaxle, whenchecking idlespeed, ignition
timing andmixture ratio,checks shouldbe
carried outwhile shiftlever isin "N" position.
When measuring "CO"percentage, insert
probe morethan40cm (15.7 in)into tailpipe.
Turn offheadlamps, heaterblower, rear
defogger. Keep frontwheels pointed straight ahead.
Make thecheck afterthecooling fanhas
stopped.
•
Perform diagnostic testmode II
(Self-diagnostic results).
OK
Check
&
adjust ignition timing.
Check
&
adjust idlespeed.
Check heated oxygen sensor
function. NG
Repair orreplace.
NG Check heated oxygen sensor
harness. NG
Repair orreplace harness.
OK OK
Check CO%. OKReplace heatedoxygen sensor.
NG
INSPECTION END Check
emission controlparts
and repair orreplace ifneces-
sary.
EC-243
NG
Check heated oxygen sensor
function.
OK
Page 963 of 1701
@
START
Visually checkthefollowing:
• Air cleaner clogging
• Hoses andduct forleaks
• Electrical connectors
• Gasket (intakemanifold, cylinderhead,exhaust system)
• Throttle valveandthrottle position sensoroperation
m
Start engine andwarm itup until engine coolant temperature indicator
points tothe middle ofgauge.
Ensure enginespeedstaysbelow 1,000rpm.
1
Open engine hoodandrunengine atabout 2,000rpmforabout 2minutes
under no-load.
Ii]
Perform theDiagnostic TestMode
1\
(Self-diagnostic results).
OK ~NG
Repair orreplace components asneces-
sary.
[!J
Run engine atabout 2,000rpmforabout 2minutes underno-load.
Rev engine twoorthree times under no-load, thenrunengine atidle
speed forabout 1minute .
li]1!I
00
1.
Select "IGNITION TIMINGADJ"inWORK SUPPORT mode.
2. Touch "START" .
.
OR
00
1.
Turn offengine anddisconnect throttleposition sensorharness
connector.
2. Start engine.
Rev engine (2,000-3,000 rpm)2or 3times under no-load, thenrunengine
at idle speed.
t
Throttle position sensor
harness connector SEF785KASEF051PA
BASIC
SERVICE PROCEDURE Em
Idle Speedllgnition TiminglldleMixtureRatio
Adjustment (Cont'd)
SEF248F
SEF455Q
Malfunction indicator
lamp \
I/
'~,,/
- CHECK-
,,/
........
/ I\
Ii] •IGN TIMING ADJ.
D
IGNITION TIMINGFEEDBACK
CONTROL WILLBEHELD BY
TOUCHING START.
AFTER DOING SO,ADJUST
IGNITION TIMINGWITHA
TIMING LIGHTBYTURNING
THE CAMSHAFT POSITION
SENSOR.
I
START
I
SEF546N
EC-244
Page 990 of 1701
TROUBLEDIAGNOSIS -General Descrip_ti_on
1S_R_'
Basic Inspection
Precaution:
Perform BasicInspection withoutelectrical ormechanical loads
applied;
• Headlamp switchisOFF,
• Air conditioner switchisOFF,
• Rear defogger switchisOFF,
• Steering wheelisinthe straight-ahead position,etc.
m
BEFORE STARTING
1. Check service records forany recent •
repairs thatmay indicate arelated
problem, orthe current needfor
scheduled maintenance.
2. Open engine hoodandcheck thefol-
lowing:
• Harness connectors forimproper con-
nections
• Vacuum hosesforsplits, kinks,or
improper connections
• Wiring forimproper connections,
pinches, orcuts
Goto
(I.
No
CONNECT
CONSULTTOTHE VEHICLE.
Connect "CONSULT" tothe data link
connector forCONSULT andselect
"ENGINE" fromthemenu. Referto
EC-254.
DOES ENGINE START?
\\
~
~ SEF1421
START
•
IGN TIMING ADJ.
0
IGNITION TIMINGFEEDBACK
CONTROL WILLBEHELD BY
TOUCHING START
AFTER DOING SO,ADJUST
IGNITION TIMINGWITHA
TIMING LIGHTBYTURNING
THE CAMSHAFT POSITION
SENSOR.
SEF555N
Yes
CHECK IGNITION TIMING.
(ij\
1.Warm upengine sufficiently.
~ 2.Select "IGNTIMING ADJ"in
"WORK SUPPORT" mode.
3. Touch "START".
4. Check ignition timingatidle
using timing light.
Ignition timing:
15°::f:2° BTDC
~ 1Warm upengine sufficiently.
~ 2:
Stop engine anddisconnect
throttle position sensorhar-
ness connector.
3. Start engine.
4. Check ignition timingatidle
using timing light.
Ignition timing:
15°::f:2° BTDC
OK
(Go to
@
onnext page.) Adjust
ignition timingby
turning distributor.
EC-271
Page 995 of 1701
TROUBLEDIAGNOSIS -General Descrip_tio_n
1s_R_1
Symptom MatrixChart(Cont'd)
SYMPTOM
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- Engine mechanical
&
other
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(l)
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00 0
(l)
1A 1B
1C 1F1H
1R 1S
1M 1J1L1K
1T
1V
1N
1P1X 1Y
Fuel Fueltank
00 0
Fuel piping
00 0000 000
0
Vapor lock
00
Valve deposit
000 000 00 0
Poor fuel(Heavy weightgasoline. Low
0000 00 00
0
-
octane)
Air Airduct
00 00 0
Air cleaner
0
0
00 0
Air leakage fromairduct
00 00 00 0
0 0
0
(Mass airflow sensor -throttle body)
Throttle body.Throttle wire
•
•
•
•
• •
•
FE
section
Air leakage fromintake
manifoldl
00 0
•
0
0 0
00 0
-
Coliector/Gasket
Cranking Battery
0
0
00 0
0 0
0
0
Alternator circuit
00
00
0
0 0
00
EL
section
Starter circuit
••
Flywheel
•
0
-
Inhibitor switch
00
ATsection
Engine Cylinderhead
•
0
•
•
••
•
0
0
Cylinder headgasket
•
0
()
•
0
•
0
0
00
Cylinder block
•
0
()
0 00 0 00
Piston
•
0
0
•
0
0
•
0
0
Piston ring
•
0
00 0
0 0 00
Connecting rod
00 00
00 0 0
Bearing
000 000 0
0
Crankshaft
00
0 0
0
0 0
0
Valve Timingchain
•
0
0
••
•
0
0 0
mechanism Camshaft
•
0
•• •
0
0 0
Intake valve
•
0
00 0
0
•
0
0
0
Exhaust valve
•
0
00 00 0000
Hydraulic lashadjuster
0000
'0
0 0
-
Exhaust Exhaust
manifoldlTube/Mulfler/Gasket
00
00 0
0
00
0 0
Three waycatalyst
•
0
0
•
0
0 000 0
Lubrication Oilpan/Oil strainer/Oil pump/Oilfilterl
000
0
0 0
0
Oil gallery
••
Oil level (Low)/Filthy oil
00 0000
0 0
0
Cooling Radiator/Hose/Radiator fillercap
00
0 00
0 0 00
Thermostat
00
00 0
0 00 0
00
Water pump
000 000 0 0
0
Water gallery
00 00 00
0 0
0
Cooling fan
00 0
00
0 0
0 0
0
0
Coolant level(low)/Contaminated cool-
00
0000
0 0
0
ant
• ;High Possibility Item
0; Low Possibility Item
EC-276
Page 1156 of 1701
Ifdifference isextreme, checkoilpassage andoilpump foroil
leaks.
6. Install oilpressure switchwithsealant.
Approximate
dischargepressure
kPa (bar,
kg/cm
2, psi)
More than78(0.78, 0.8,11)
314 -392 (3.14 -3.92, 3.2-4.0, 46-57)
Engine
speed
rpm
Idle speed
3,200
ENGINE
LUBRICATION SYSTEM ~
Oil Pressure Check(Conl'd)
3. Install pressure gauge.
4. Start engine andwarm itup tonormal operating tempera-
ture.
5. Check oilpressure withengine running underno-load.
Oil Pump
REMOVAL
1. Remove drivebelts.
2. Remove cylinderhead.(Refer toEM section.)
3. Remove oilpans. (Refer toEM section.)
4. Remove oilstrainer andbaffle plate.
5. Remove frontcover assembly.
DISASSEMBLY ANDASSEMBLY
SLC048B
r~3.7
-
5.0 (0.38 -0.51, 33.0-44.3)
_d!:,
r!il6.4 .
7.5
o -----~
(0.65•0.76, 56.4•66.0)
-----
~
\" ~•.•-7.'
(0.65 •0.76, 56.4-66.0)
~ [OJ16•19 (1.6 -1.9, 12-14)
~[OJ39 -69 (4.0 -7.0, 29-51)
~
liquid gasket
[OJ :N'm (kg-m, ft-Ib)
~ :N.m (kg-m, in-Ib)
I) :
Apply
engine oil.
G)
Oilpump cover
@
Front cover
@
Inner gear
@
Outer gear
@
Regulator valve
@
Spring
(J)
Shims
@
Plug
@
Regulator valveset
@
Oilstrainer
• Always replace oilseal, gasket andO-ring withnewones.
• When installing oilpump, applyengine oiltoinner andouter
gears.
• Besure thatO-rings areproperly fitted.
LC-18
Page 1162 of 1701
ENGINECOOLING SYSTEM ~
Thermostat
(Cont'd)
Upper REMOVALANDINSTAllATION
;::g=
Jigglevalve
1.Drain engine coolant.
2. Remove lowerradiator hose.
3. Remove waterinlet,thentake outthermostat.
4. Install thermostat withjiggle valveorair bleeder facing
upward.
• After installation, runengine forafew minutes, andcheck
for leaks.
• Becareful nottospill coolant overengine compartment.
Use arag toabsorb coolant.
SLC767
INSPECTION
1. Check forvalve seating condition atordinary temperatures.
It
should seattightly.
2. Check valveopening temperature andvalve lift.
Valve opening temperature
°c
(OF) 76.5(170)
Valve lift mmrC(inrF) Morethan
8/90(0.31/194)
3. Then check ifvalve closes at5°C (9°F) below valveopening
temperature.
Water Outlet
INSPECTION
Visually inspectforwater leaks.
If
there isleakage, applyliq-
uid gasket.
SLC460A INSTAllATION
1. Before installing, removealltraces ofliquid gasket from
mating surface ofwater outlet usingascraper.
• Also remove tracesofliquid gasket frommating surface of
cylinder head.
2. Apply acontinuous beadofliquid gasket tomating surface
of water outlet. .
• Use Genuine LiquidGasket orequivalent.
~ Liquid gasket
SEM086D
LC-24
Page 1180 of 1701
ENGINEMECHANICAL
SECTION
EM
CONTENTS
•
PRECAUTIONS
3
Parts Requiring AngularTightening 3
Liquid Gasket Application Procedure 3
PREPARATION 4
Special Service Tools 4
Commercial ServiceTools 8
GA
OUTER COMPONENT PARTS 9
COMPRESSION PRESSURE 15
Measurement ofCompression Pressure 15
OIL PAN 16
Removal 16
installation 17
TIMING CHAIN
18
Removal. 20
Inspection 23
Installation 23
OIL SEAL REPLACEMENT 30
CYLINDER HEAD 32
Removal 34
Disassembly 34
Inspection 34
Assembly 40
Installation 40
VALVE CLEARANCE 41
Checking 41
Adjusti ng 41
ENGINE REMOVAL .44
Removal 45
Ins taIIat ion " 46
CYLINDER BLOCK 47
Disassembly 48
Inspection 48
Assembly 55
SR
OUTER COMPONENT PARTS 59
COMPRESSION PRESSURE 62
Measurement ofCompression Pressure 62
OIL PAN
63
Removal 63
Installation ,66
TIMING CHAIN 68
Removal 69
Inspection 73
Installation ,73
OIL SEAL REPLACEMENT 82
ACCEL-DRUM UNIT 84
CYLINDER HEAD
85
Removal 86
Disassembly 86
Inspection 88
Assembly 93
Installation , 97
ENGINE REMOVAL 98
RemGval 99
Installation "100
CYLINDER BLOCK 101
Disassembly 102
Inspection , 102
Assembly 109
CD
OUTER COMPONENT PARTS
113
COMPRESSION PRESSURE 115
OIL PAN 118
Removal 118
Installation 118
Page 1181 of 1701
CONTENTS(Conl'd.)
TIMING BELT
120
Camshaft TimingBelt 120
Injection PumpTiming Belt 124
OIL SEAL REPLACEMENT
126
CYLINDER HEAD 128
Removal 129
Disassembly 129
Inspection 130
Assembly 136
Installation 137
ENGINE REMOVAL
140
CYLINDER
BLOCK 143
Preparation 144
Disassembly 144
Inspection 145
Assembly 152
GA
SERVICE DATAANDSPECIFICATIONS
(505)
155
General Specifications ,155
Inspection andAdjustment. 156
SR
SERVICE DATAANDSPECIFICATIONS
(505)
163
General Specifications 163
Inspection andAdjustment. 163
CD
SERVICE DATAANDSPECIFICATIONS
(50S)
171
Inspection andAdjustment.. 171