radiator NISSAN ALMERA N15 1995 Owner's Guide

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

SEC.214

10
ENGINE
COOLING SYSTEM
Radiator
SLC039BA
•

CD
Reservoir tank

@
Reservoir tankbracket

@
Radiator cap

@
Mounting bracket

CID
Upper hose
@

Washer

(J)
Drain plug

CID
Mounting rubber

@
Oilcooler hose
(AfT
models)
@)

Radiator

@
Lower hose

@
Cooling fan

@
Cooling fanmotor

Cooling fancontrol system

• Cooling fansarecontrolled bythe ECM. Fordetails, referto
EC section ("Cooling FanControl", "TROUBLE
DIAGNOSES").

Refilling enginecoolant

• For details onrefilling enginecoolant, refertoMA section
("REFILLING ENGINECOOLANT", "ChangingEngine
Coolant").

LC-25

ENGINELUBRICATION SYSTEM
SLC926.A Ifdifference isextreme, checkoilpassage andoilpump foroil
leaks.

6. Install oilpressure switchwithsealant.

ST25052000
3.
Install pressure gauge.
4. Start engine andwarm itup tonormal operating tempera-
ture.
5 .. Check oilpressure withengine running underno-load.
•

Approximate dischargepressure
kPa (bar,
kg/cm
2,
psi)
More than59(0.59, 0.6,9)
294 (2.9, 3,43)
Idle
speed
2,000
Engine
rpm

Oil
Pressure Check
WARNING: • Becareful nottoburn yourself, asthe engine andoilmay
be hot.
• Oilpressure checkshould bedone in"Neutral" gearposi-
tion.

1. Check oillevel.
2. Remove oilpressure switch.

SLC461

Oil
pressure switch

ST25051 001

~ 12.16 N.m

(1.2 .1.6 kg-m, 9-
12 ft.lb) SLC462A
SLC463A Oil
Pump

REMOVAL ANDINSTAllATION

1. Drain engine coolant andengine oil.
2. Remove upperradiator hose,drivebelts, crank pulley, tim-
ing belt covers andtiming belt.
3. Remove exhaustfronttube, timing beltpulley andrear
engine gusset(bartype), thenremove oilpan.
4. Remove oilpump assembly withoilstrainer.
5. Reinstall anypart removed. Refillengine oiland engine
coolant.
• Apply liquidgasket tooil pump.
• Apply liquidgasket tooil pan.
• Apply liquidgasket toboth ends ofoil pan oilseals.
• Install oilpan, fitting oilseals inthe correct position.

LC-27

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
REMOVAL ANDINSTALLATION

1. Drain engine coolant fromradiator andcylinder block.
2. Remove upperradiator hose,timing beltcovers, front
engine mounting bracketandtiming belt.
3. Remove timingbelttensioner andidler andtiming belt
lower backcover.

~
Drain plug(Radiator)

4.Remove waterpump.
• For installation, applyliquidgasket towater pumpasshown
in the figure.

2.5:!:0.5
Bolt hRille (0.098:!:0.020r12.5:!: 0.5
die. (0.098:!:0.020)

dIe.
Unit: mm(in) SLC565A
*:
Apply liquidsealant tothe thread.

~/ ~~;>
~/ ~l!.

to.J
M7: 16-20 N.m (1.6-2.0 kg-m, 12-14 ft-Ib)
M8: 16-21 N.m (1.6-2.1 kg-m, 12-15 ft-Ib)

SLC563A
LC-33
•

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

ENGINECOOLING SYSTEM
@J

Radiator (Cont'd)
Cooling fancontrol system

• Cooling fansarecontrolled bythe ECM. Fordetails, referto
EC section
("Cooling
FanControl", "TROUBLE
DIAGNOSES").

Refilling enginecoolant

• For details onrefilling enginecoolant, refertoMA section
("REFILLING ENGINECOOLANT", "ChangingEngine
Coolant").

LC-36

ENGINECOOLING SYSTEM
I

GA, SR,CD
I

Radiator (Aluminum type)

r
Sealing rubber~

•

SLC882AB
AIT
model only

r

Upper tank
Sealing rubber~

/"""-.

CJ~~ /~.........."-. '-.. ....,
1I

. / -~ '-""", /~Oil coolersecuring nut-

~ ~,>" (
6<,~8 •
12 N.m
(0.8•1.2 kg-m,
69-104
In-Ib)

@
0..~
~>..
!--Conicalwasher~

, ~I"~"-
Washer
/ /~, ,-O-ring~
Lower tank
-.I
I/' ,_
Oil cooler

o

,

SEC.
214

1.5(0.059)

H"
=
7.6
(0.299)

Unit: mm(in)
PREPARATION

1. Attach thespacer tothe tipofthe radiator platepliers A.
Spacer specification: 1.5mm (0.059 in)thick x18 mm (0.71
in) wide x8.5 mm (0.335 in)long.
2. Make surethatwhen radiator platepliers Aare closed
dimension H"isapprox. 7.6mm (0.299 in).
3. Adjust dimension H"with thespacer, ifnecessary.

• Ifthe radiator corerimscannot becrimped asspecified,
further modification ofthe radiator platepliers Ais
required. Refertothe Technical BulletinLC91-001.
SLC655C
D1SASSEMBL Y

1. Remove tankwithTool.
• Grip thecrimped edgeandbend itupwards sothat Tool
slips off.

Do not bend excessively.
*
LC-37

ENGINECOOLING SYSTEM
I
GA, SR,CD
I

Radiator (Aluminum type)(Cont'd)

• Inareas where Toolcannot beused, useascrewdriver to
bend theedge up.

Be careful nottodamage tank.

2. Make suretheedge stands straight up.
3. Remove oilcooler fromtank.
(AfT
models only)

SLC931 ASSEMBLY
1. Install oilcooler.
(AfT
models only)

Pay attention todirection ofconical washer.
~ Conical washer~
SLCB94
2.Clean contact portionoftank.

SLC932
3.Install sealing rubber.

Push itin with fingers.
Be careful nottotwist sealing rubber.
LC-38

SLC904

CD

@

10~~103~ \

~' ENGINE
COOLING SYSTEM
I
GA, SR,CD
I

Radiator (Aluminum type)(Cont'd)

4. Caulk tankinspecified sequence withTool.

•

Keep toolperpendicular to
the radiator.
o

X

(Grip isinsufficient.)

SLC896

• Use pliers inthe locations whereToolcannot beused.
5. Make surethattherim iscompletely crimpeddown.

Standard height
"H":

8.0 -8.4 mm (0.315 -0.331 in)

6. Confirm thatthere isno leakage.

Refer toInspection.
INSPECTION

Apply pressure withTool.

Specified pressurevalue:
157 kPa (1.57 bar,1.6kg/cm
2,
23psi)
WARNING:
To prevent therisk ofthe hose coming undonewhileunder
pressure, securelyfastenitdown withahose clamp.
Attach ahose tothe oilcooler aswell.
(A
IT models only)
SLC933 LC-39