1995 NISSAN ALMERA N15 Service Manual

ENGINELUBRICATION SYSTEM
SEC.
135.150

lil
N.m(kg-m, in-Ib)
~. N.m(kg-m, ft-Ib)

rJ .
Liquid gasket
Oil
Pump

Frontcover side

a~:oo"

Oil pump
cover side

SLC985AA
•

CD
Oilpump cover

@
Inner gear

@
Outer gear

@
Front cover
I])

O-ring

@J
Oilstrainer

(J)
Regulator valve
@

Spring

@
Washer

@)
Plug
Spring]
I

Regulator valve
7
I
REGULATOR
VALVEINSPECTION

1. Visually inspectcomponents forwear anddamage.
2. Check oilpressure regulator valvesliding surface andvalve
spring.
3. Coat regulator valvewithengine oil.Check thatitfalls freely
into thevalve holebyitsown weight.

If damaged, replaceregulator valvesetoroil pump assembly.
SLC986A OILPRESSURE RELIEFVALVEINSPECTION

Inspect oilpressure reliefvalve formovement, cracksand
breaks bypushing theball. Ifreplacement isnecessary, remove
valve byprying itout with suitable tool.
Front Installanew valve inplace bytapping it.

•
Cylinder
block

SLC418A
LC-7

0.045-0.091 (0.0018 -0.0036)
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)

Body
toouter gearclearance
CD

Inner geartocrescent clearance @
Outer geartocrescent clearance
@

Body toinner gearclearance @
Body toouter gearclearance @
Inner geartobrazed portionof
housing clearance
@

• Ifthe tipclearance (@)exceeds thelimit, replace gearset.
• Ifbody togear clearances (
(1), ~,
@,
@,
@)
exceed the
limit, replace frontcover assembly.

Using
afeeler gauge, checkthefollowing clearance.

Unit:mm(in)

SLC420A
ENGINE
LUBRICATION SYSTEM
Oil Pump (ConI'd)
DISASSEMBLY ANDASSEMBLY
• Always replace oilseal withanew one.
• When installing oilpump, applyengine oiltogears.
• Make surethatO-ring isfitted properly.
OIL PUMP INSPECTION
Feeler gauge
SLC419A
b SLC222A
LC-8

ENGINECOOLING SYSTEM
Cooling Circuit
Reservoir tank
...Thermostat: OPEN
~ Thermostat: CLOSED

•

Water outlet Thermostat
housing
Throttlebody
Intake manifold Heater
SLC9S7AA
LC-9

ENGINECOOLING SYSTEM
Water HoseDrawing
GA14DE andGA16DE withoutVTC
GA 16DE withVTCexcept forAustralia GA15DE
MLC084A

CD
Intake manifold tothermostat
housing-1

@
Intake manifold tothermostat
housing-2
@

Radiator lowerhosetowater
inlet

@
Intake manifold tothrottle body

LC-10
@

Throttle bodytothermostat
housing

ENGINECOOLING SYSTEM
Water HoseDrawing (Cont'd)
GA16DE withVTCforAustralia

Intakemanifold

5
9
•

Q)
Intake manifold toThermostat
housing (upper)

@
Intake manifold toThermostat
housing (lower)

@
Water jacket toWater pipe
lower
@

Water pipelower

CID
Water pipelower toThrottle
body

@
Water pipelower toIntake
manifold

(J)
Water pipeupper

LC-11 @

Throttle bodytoWater pipe
upper

@
Intake manifold toWater pipe
upper

@
Water pipeupper toThermostat
housing

SLC021BA

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-12

ENGINECOOLING SYSTEM

IiJ
6.28 -8.34 (0.641 -0.851, 55.6-73.8)

SEC.
210 Water
Pump

~ 6.28 -8.34 (0.641 -0.851, 55.6-73.8)

WaterpumppUlley
l

~Liquid gasket
~ N.m(kg-m, in-Ib)

SLC989AB
•

CAUTION:
• When removing waterpumpassembly, becareful nottoget
coolant ontiming chain.
• Water pumpcannot bedisassembled andshould be
replaced asaunit.
• After installing waterpump, connect hoseandclamp
securely, thencheck forleaks using radiator captester.
REMOVAL
1. Drain coolant fromradiator andcylinder block.
2. Remove drivebeltsforcompressor, powersteering pump
and alternator.
3. Remove waterpumppulley.
4. Remove waterpump.

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

SLC162A LC-13

ENGINECOOLING SYSTEM
Water Pump(Cont'd)
INST ALLATION

Use ascraper toremove liquidgasket fromwater pump.

Be sure liquid gasket ingrooves isalso removed.

• Remove liquidgasket frommating surface offront cover.
• Remove alltraces ofliquid gasket usingwhitegasoline.

SLC425A
•Apply liquidgasket tomating surface ofpump housing as
shown.

SLC426A

[J
Liquid gasket
Thermostat housing
7

Ther~st~

W"",?~: .

~. ~~628-634

~ P"L' 'd
(0.641-0.851,
~ IqUI gasket 55.6_73.8)
~6.28 -8.34 (0.641 -0.851, 55.6-73.8)
~: N.m(kg-m. in-Ib) SLC990ACThermostat
INSPECTION
1. Check forvalve seating condition atordinary temperatures.

It
should seattightly.

Up

11
Jiggle
valve
(top side)
SLC499A
SLC343
2.
Check valveopening temperature andmaximum valvelift.

Valve opening temperature °C
CF)
76.5(170)
Valve
lift
mml"C(inI"F) Morethan8190(0.311194)

3. Then check ifvalve closes at5°C (9°F) below valveopening
temperature.

• After installation, runengine forafew minutes, andcheck
for leaks.
LC-14