engine NISSAN ALMERA N15 1995 Service Manual

ENGINELUBRICATION
&

COOLING SYSTEMS
SECTION
LC
CONTENTS
•

PRECAUTION
2

PREPARATION
3

GA

ENGINE LUBRICATION SYSTEM
5

Lubrication Circuit.. 5
Oil Pressure Check 6
Oil Pump 7
ENGINE COOLING SySTEM 9
Cooling Circuit 9
Water HoseDrawing 10
System Check 12
Water Pump 13
Thermostat 14
Water Outlet 15
Radiator 16
SR
ENGINE LUBRICATION SYSTEM 17
Lubrication Circuit. 17
Oil Pressure Check 17
Oil Pump 18
Oil FiIter 20
ENGINE COOLING SYSTEM 21
Cooling Circuit 21
System Check 21
Cooling SystemInspection 21
Water Pump 22
Thermostat 23
Water Outlet 24
Radiator 25CO
ENGINE LUBRICATION SYSTEM 26
Lubrication Circuit... 26
Oil Pressure Check 27
Oil Pump ,27
Oil Cooler 30
ENGINE COOLING SYSTEM 31
Cooling Circuit 31
System Check 32
Water Pump ,33
Thermostat 34
Radiator 35
GA,SR,CO
ENGINE COOLING SYSTEM 37
Radiator (Aluminum type) 37
GA,SR
SERVICE DATAANDSPECIFICATIONS (SOS)40
Engine Lubrication System(GA) 40
Engine Cooling System(GA) 40
Engine Lubrication System(SR) 40
Engine Cooling System(SR) 40
CO
SERVICE DATAANDSPECIFICATIONS (SOS)41
Engine Lubrication System .41
Engine Cooling System 41

Inner
side
SEM164F PRECAUTION
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 SRengine and3.5to4.5 mm
(0.138 to0.177 in)except forSRengine.
• For areas except oilpan, besure liquid gasket diameter
is 2.0 to3.0 mm (0.079 to0.118 in).
c. Apply liquidgasket toinner sealing surface aroundhole
perimeter area.
(Assembly shouldbedone within 5minutes aftercoating.)
d. Wait atleast 30minutes beforerefilling engineoiland
engine coolant.

LC-2

PREPARATION
Engine
Tool number
Description application
Tool name
GASRCD
EG17650301 Adapting
radiator
Radiator captester

~
C~~4b
cap
tester toradia-
adapter

~
tor
filler neck

,
atet? cDJtaa:
28 (1.10) dia.
X
X X

b: 31.4 (1.236) dia.
c: 41.3 (1.626) dia.
NT564
Unit:
mm(in)

KV99103510 Installing
radiator
Radiator plate

~
upper
andlower
pliers A tanks

XX
X

NT224

KV991 03520 Removingradiator
Radiator plate upper
andlower
pliers B

~
tanks

XXX

NT225
LC-4

Maingallery

Chain tenfioner
ENGINE
LUBRICATION SYSTEM
Lubrication Circuit

Oil drop

./~.

"

Oil strainer ~__.

<:;=::J
011
passage

~ Oil
qallely In
cylinder
block

~ ..- 8y.pass passage

..-- Drain

Only models

with VTC
LC-5 VTC

Idler sprocket

SLC0048
SLC052B
•

ENGINELUBRICATION SYSTEM

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

If difference isextreme, checkoilpassage andoilpump foroil
leaks.

6. Install oilpressure switchwithsealant.

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.

ST25051001 SLC926-A
Engine
speed
rpm
Idle speed
2,000
6,000 Approximate
dischargepressure
kPa (bar,
kg/cm
2,
psi)
More than59(0.59, 0.6,9)
More than245(2.45, 2.5,36)
More than422(4.22, 4.3,61)

LC-6

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