1995 NISSAN ALMERA N15 check engine

ENGINECOOLING SYSTEM
System Check
WARNING:
Never remove theradiator capwhen theengine ishot; serious
burns couldbecaused byhigh pressure fluidescaping fromthe
radiator.
Wrap athick cloth around capandcarefully loosenita quarter
turn torelease built-uppressure. Thenremove thecap com-
pletely.
CHECKING COOLINGSYSTEMHOSES

Check hosesforimproper attachment, leaks,cracks, damage,
loose connections, chafinganddeterioration.

CHECKING RADIATORCAP

To check radiator cap,apply pressure tocap with atester.

Radiator caprelief pressure:
Standard 78 -98 kPa
(0.78 -0.98 bar,0.8-1.0 kg/cm
2,
11-14 psi)
Limit 59 -98 kPa
(0.59 -0.98 bar, 0.6-1.0 kg/cm
2,
9-14 psi)
SLC613-A
Pullthenegative pressure valvetoopen
it.
Check thatitcloses
completely whenreleased.

CHECKING COOLINGSYSTEMFORLEAKS

To check forleakage, applypressure tothe cooling systemwith
a tester.

Testing pressure:
157 kPa (1.57 bar,1.6kg/cm
2,
23psi)
CAUTION:
Higher thanthespecified pressure maycause radiator damage.
SLC422A LC-32

ENGINECOOLING SYSTEM
Water Pump(Cont'd)
INSPECTION

• Check bodyassembly forrust orcorrosion.
• Check forrough operation duetoexcessive endplay.

SLC760 Thermostat
REMOVAL ANDINSTALLATION

Bolthole
2.5:t0.5(0.098:t 0.020)
die.

\ r
/2.5+0.5

rTfJ ~
(0.098:t 0.020)
die.

SLC564AA

Thermostat
housing

o

a
o

Bolt hole
¥
2.5:t0.5 (0.098:t 0.020)
die.

F2.5+0.5

,-a,
(0.098:t ~.020)die.

From
coldstart device

'I ..

From
01
cooler ..

/

From heater unit~~

2.5+'5
0

:. ••uo.02O)~'28l

Unit: mm(in)

toJ :
N.m (kg-m, ft-Ib)

SEC.
210-211

•Apply liquidgasket towater outlet, thermostat housingand
water inlet.

LC-34

SLC097
•

ENGINE
COOLING SYSTEM
Thermostat (Cont'd)

• Install thermostat withjiggle valveuppermost.

• After installation, runengine forafew minutes, andcheck
for leaks.

Upper

.. Jigglevalve
----¥-

A~ ...
g

~~-

SLC343INSPECTION

1. Check forvalve seating condition atordinary temperatures.
It should seattightly.
2." Check valveopening temperature andvalve lift.
Valve opening temperature
°c
(OF) 88(190)
Valve lift
mmrC
(inrF) Morethan10/100 (0.39/212)
3. Then check ifvalve closes atSOC (9°F) below valveopening
temperature.

Radiator

14

iii :
N'm (kg-m, in-Ib)

~
6.86 (0.70, 60.7)

9

SEC.
214

1i13.7 -5.0

\~~8 _-4~.~~-_ ~
i
1jJ,.7-
5.0 (0.38 -0.51, ".0-
44.')

~ l
~~9
._~1

~@~----
I

~
.
-~

.
~
._~

~~ J'

.~ ~

@
1t1 '''~.
l!jO

~1.5 .82.5
A;:

, (0.15 •0.25,

L
13.0. 21.7)

iii
3.7 •5.0 (0.38 .0.51, 33.0•44.3)

SLC054B

CD
Reservoir tank

@
Reservoir tankbracket

@
Radiator cap

@
Mounting bracket

@
Upper radiator hose
@

Washer

(J)
Radiator drainplug

@
Mounting rubber

@
Radiator

@l
Lower radiator hose
@

Cooling fan
@ Cooling fanmotor

@
Shield spacer

@
Cooling fanmotor shield

LC-35

Oilpressure checkSERVICE
DATAANDSPECIFICATIONS (50S)
Engine Lubrication System(GA)
Oil pump inspection
I

GA, SR
I

Engine speed
rpm
Idle speed

2,000
6,000
Approximate
dischargepressure
kPa (bar, kg/cm?, psi)
More than
59(0.59, 0.6,9)

More than
245(2.45, 2.5,36)

More than
422(4,22, 4.3,61)
Body
toouter gear
clearance
Inner geartocrescent
clearance
Outer geartocrescent
clearance
Body toinner gear
clearance
Body toouter gear
clearance
Inner geartobrazed portionof
housing clearance Unit:
mm(in)

0.110 -0.200 (0.0043 -0.0079)
0.217 -0.327 (0.0085 -0.0129)
0.21 -0.32 (0.0083 -0.0126)
0.05 -0.09 (0.0020 -0.0035)
0.05 -0 11 (0.0020 -0.0043)
0.045 -0.091 (0.0018 -0.0036)
Thermostat Engine
Cooling System(GA)
Radiator

Standard Unit:
kPa(bar, kg/cm?, psi)
Valve opening temperature °C("F)
Valve lift mml'C(inI'F)
76.5
(170)

More than

8/90 (0.31/194)
Standard
Cap relief
pressure Limit
Leakage testpressure
78
-98
(0.78 -0.98, 0.8-10, 11-14)
59 -98
(059 -0.98, 06-10, 9-14)
157 (1.57, 16,23)
Oil pressure check Engine
Lubrication System(SR)
Oil pump inspection

Engine speed
rpm
Idle speed

3,200
Approximate
discharge
pressure kPa(bar,
kg/cm?,
psi)
More than
78(0.78, 0.8,11)
314 -392 (3.14 -3.92, 3.2-4.0, 46-57)
Body
toouter gearclearance
Inner geartoouter geartip
clearance . Unit:
mm(in)

0,114 -0,200 (0.0045 -0.0079)

Below
0.18(0.0071)
Regulator valveinspection

Unit:mm(in) Body
toinner gearclearance
Body toouter gearclearance
Inner g-eartobrazed portionof
housing clearance
0.05
-0.09 (0.0020 -0.0035)
0.05 -0.11 (0.0020 -0,0043)
0.045 -0,091 (0,0018 -0,0036)

Regulator valvetooil pump
cover clearance

Thermostat 0040
-0097 (0,0016 -0.0038)
Engine Cooling System(SR)
Radiator

Valve opening temperature
Valve lift
°C

(OF)

mml"C
(inI"F)
765
(170)

More than
8/90

(0,31/194)
Standard
Cap relief
pressure Limit
Leakage testpressure

LC-40
Unit:
kPa(bar, kg/em?, psi)

78 -98

(0.78 -0,98, 0.8-1,0, 11-14)
59 -98
(0,59 -0.98, 0.6-1.0, 9-14)
157 (1.57, 1.6,23)

SERVICEOATAAND SPECIFICATIONS (SOS)
Oil pressure check Engine
Lubrication System
Oil pump inspection

Unit:mm(in)
Body toouter gearclearance 0.12-0.20 (0.0047 -0.0079)
Outer geartoinner gearclearance Lessthan0.18(0.0071)
Engine
rpm
Idle speed
2,000 Approximate
dischargepressure
kPa (bar, kg/cm
2,
psi)
More than59(0.59, 0.6,9)
294 (2.9, 3,43) Housing
toinner gearclearance
Housing toouter gearclearance
Inner geartohousing clearance 0.05
-0.09 (0.0020 -0.0035)
0.05 -0.11 (0.0020 -0.0043)
0.05 -0.09 (0.0020 -0.0035)

•

Thermostat Engine
Cooling System
Radiator
Unit:kPa(bar, kg/cm
2,
psi)
Leakage testpressure
Valve
opening temperature

°c
(OF)

Valve lift

mmrC
(inrF)
88
(190)
More than10/100 (0.39/212) Cap
relief
pressure

LC-41
Standard
Limit 78
-98 (0.78 -0.98, 0.8-1.0,11 -14)
59 -98 (0.59 -0.98, 06-1.0, 9-14)
157 (1.57,1.6,23)

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

COMPRESSIONPRESSURE

20
mm
(O.79 In)dls.

Use compressor testerwhose end(rubber
portion) isless than 20mm (0.79 in)dia.
Otherwise, itmay becaught bycylinder
head during removal.

SEM387CMeasurement
ofCompression Pressure

1. Warm upengine.
2. Turn ignition switchoff.
3. Cut fuel line.
Release fuelpressure.
Refer to"Releasing FuelPressure" inEC section. •
4. Remove allspark plugs.
5. Disconnect distributorcentercable.
6. Attach acompression testertoNO.1 cylinder.
7. Depress accelerator pedalfullytokeep throttle valvewide
open.
8. Crank engine andrecord highest gaugeindication.
9. Repeat themeasurement oneach cylinder asshown above.

• Always useafully-charged batterytoobtain specified
engine revolution.
Compression pressure:
Unit:kPa(bar, kg/cm
2,
psi)/rpm
Compression Differencelimit
ratio
Standard
Refer toSOS Minimum
betweencylin-
(EM-155). ders
9.5 1,324
(13.24, 1,128(11.28,
13.5, 192)/350 11.5,164)/350
9.8 1,353
(1353, 1,157(11.57, 98(0.98, 1.0,14)/
13.8, 196)/350 11.8,168)/350
350
9.9 1,373
(13.7, 14, 1,177(11.8,12,
199)/350 171)/350

10.
If
compression inone ormore cylinders islow:
a. Pour asmall amount ofengine oilinto cylinders through
spark plugholes.
b. Re-test compression,

• Ifadding oilhelps compression, pistonringsmaybeworn
or damaged. Ifso, replace pistonringsafterchecking pis-
ton.
• Ifpressure stayslow,avalve maybesticking orseating
improperly. Inspectandrepair valveandvalve seat.Refer
to SOS (EM-156, 159).Ifvalve orvalve seatisdamaged
excessively, replacethem.
• Ifcompression stayslowintwo cylinder thatarenext to
each other:
The cylinder headgasket maybeleaking, or
both cylinders mayhave valve component damage.
Inspect andrepair asnecessary.
EM-15

TIMINGCHAIN
Inspection
Check forcracks andexcessive wearatroller links.Replace if
necessary.

•

SEM1190

No. 1cylinder atTDC
Installation

1. Position crankshaft sothat No.1piston isat TOC andkey
way isat 12 o'clock.
a. Install crankshaft sprocket.

• Make suremating marksoncrankshaft sprocketfacefront
of engine.

b. Install oilpump drivespacer.

SEM377CC
--40
rollers
2.
Install chainguide.
3. Install crankshaft sprocketandlower timing chain.

• Settiming chainbyaligning itsmating markwiththeone on
crankshaft sprocket.
• Make suresprocket's matingmarkfaces engine front.
• The number oflinks between alignment marksare thesame
for the leftand ri.Qht sides. Eithersidecanbeused during
alignment withthesprocket.
SEM127F

/
Same number link

///

40 rollers-
• :Mating mark(different color)

EM-23