coolant NISSAN ALMERA N15 1995 Service Manual

A16-21
N.m ~/
(1.6 •2.1 kg-m,
12 -15
ft.lb)
ENGINE
COOLING SYSTEM

Cooling SystemInspection (Cont'd)

Pull thenegative 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 pressuremaycause radiator damage.

Water Pump
REMOVAL
1. Drain coolant fromradiator.
2. Remove cylinderblockdrain pluglocated atleft front of
cylinder blockanddrain coolant.
3. Remove frontRHwheel andengine sidecover.
4. Remove drivebelts.
5. Remove frontengine mounting.
6. Remove waterpump.
CAUTION:
• When removing waterpumpassembly, becareful nottoget
coolant ondrive belt.
• Water pumpcannot bedisassembled andshould be
replaced asaunit.
• After installing -waterpump, connect hoseandclamp
securely, thencheck forleaks using radiator captester.

INSPECTION
1. Check bodyassembly forrust orcorrosion.
2. Check forrough operation duetoexcessive endplay.

SLC408C LC-22

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

ENGINELUBRICATION SYSTEM
Oil Pump (Cont'd)
OIL PRESSURE RELIEFVALVEINSPECTION

Inspect oilpressure reliefvalve (indicated byarrow) for
movement, cracksandbreaks bypushing theball. Ifreplace-
ment isnecessary, removevalvebyprying itout with asuitable
tool. Install anew valve inplace bytapping it.

SLC446 OilCooler

SEC. 150-213

RHO

tOJ
16-21
(1.6. 2.1,12•15)
/
tOJ
34-44

11 ~
f:1
(3.5 -4.5, 25-33)

Front ~ LHO

:N.m (kg-m, ft-Ib)
Front
~
SLC047B

CD
Oilcooler

@
Connector
@

a-ring

@
Oilfilter bracket
@

Gasket

@
Cover

INSPECTION
1. Check oilcooler element andhousing forcracks.
2. Check coolant inletofoil cooler forclogging byblowing
through it.
Replace itifnecessary.

Oil cooler

SLC465A LC-30

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
•

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

Innerside
SEM164F PRECAUTIONS
Parts Requiring AngularTightening

• Use anangle wrench forthe final tightening ofthe follow-
ing engine parts:
(1) Cylinder headbolts
(2) Main bearing capbolts (SRengine only)
(3) Connecting rodcap nuts (SRand CDengine)
• Donot use atorque valueforfinal tightening. •
• The torque values forthese partsareforapreliminary step.
• Ensure threadandseat surfaces areclean andcoated with
engine oil.

Liquid Gasket Application Procedure

a. Use ascraper toremove alltraces ofold liquid gasket from
mating surfaces andgrooves. Also,completely cleananyoil
from these areas.
b. Apply acontinuous beadofliquid gasket tomating surfaces.
(Use Genuine LiquidGasket orequivalent.)
• For oilpan, besure liquid gasket diameter is4.0 to5.0
mm (0.157 to0.197 in)for SR engine. Besure liquid
gasket diameter is3.5 to4.5 mm (0.138 to0.177 in)for
GA and CDengine.
• For areas except oilpan, besure liquid gasket diame-
ter is2.0 to3.0 mm (0.079 to0.118 in).
c. Apply liquidgasket toinner surface aroundholeperimeter
area.
d. Assembly shouldbedone within 5minutes aftercoating.
e. Wait atleast 30minutes beforerefilling engineoiland
engine coolant.

EM.3

OUTERCOMPONENT PARTS

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

iii :
N'm (kg-m, in-Ib)
Tighten innumerical order.
Engine

A

Iront
y

*
Throttle bodyboltstightening procedure

1) Tighten allbolts to9to 11 N.m (0.9 to
1.1
kg-m, 6.5to8.0 fl-Ib)
2) Tighten allbolts to18 to22 N'm (1.8to2.2 kg-m, 13to16 ft-Ib)
Tighten innumerical order.

GA16DE
WITHOUT VTe,14DE AND15DE

SEC. 140-147-163-164
GA15DE

SEM220F

CD
Throttle position sensor
@ Mass airflow sensor

@
IACV-AAC valve
@ IACV-FICD solenoidvalve
@ Throttle body @
Engine coolant temperature
sensor

IJ)
Airrelief plug

@
Injector
@ Injector tube
@l

Pressure regulator

@
EGR valve (GA15DE

M/T
model only)
@ Intake manifold
@ IACV-AAC valve(GA15DE
engine models only)

EM-10

TIMINGCHAIN
Without

VTC
CAUTION:
• After removing timingchain,donot turn crankshaft and
camshaft separately, orvalves willstrike piston heads.
• When installing camshafts, chaintensioner, oilseals, or
other sliding parts,lubricate contacting surfaceswithnew
engine oil.
• Apply newengine oiltobolt threads andseat surfaces when
installing cylinderhead,camshaft sprocket,crankshaft
pulley, andcamshaft brackets.
Removal

1. Drain engine coolant fromradiator andcylinder block.
Be careful nottospill coolant ondrive belts.
2. Release fuelpressure. '
Refer to"Releasing FuelPressure" inEG section.
3.. Remove thefollowing belts.
• Power steering pumpdrivebelt
• Alternator drivebelt
4. Remove powersteering pulleyandpump withbracket.
5. Remove airduct tointake manifold collector.
6. Remove frontright-side wheel.
7. Remove frontright-side splashcover.
8. Remove frontundercovers.
9. Remove frontexhaust tube.
10. Remove cylinderheadfrontmounting bracket.
11. Remove rockercover.
12. Remove distributor cap.
13. Remove allspark plugs.
14. Remove intakemanifold support.
15. Set NO.1 piston at
TOG
onitscompression stroke.

EM-20