1995 NISSAN ALMERA N15 check engine

Ifdifference isextreme, checkoilpassage andoilpump foroil
leaks.

6. Install oilpressure switchwithsealant.
Approximate
dischargepressure
kPa (bar,
kg/cm
2, psi)
More than78(0.78, 0.8,11)

314 -392 (3.14 -3.92, 3.2-4.0, 46-57)

Engine
speed

rpm

Idle speed

3,200
ENGINE
LUBRICATION SYSTEM ~
Oil Pressure Check(Conl'd)

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

Oil Pump
REMOVAL
1. Remove drivebelts.
2. Remove cylinderhead.(Refer toEM section.)
3. Remove oilpans. (Refer toEM section.)
4. Remove oilstrainer andbaffle plate.
5. Remove frontcover assembly.

DISASSEMBLY ANDASSEMBLY
SLC048B

r~3.7
-
5.0 (0.38 -0.51, 33.0-44.3)

_d!:,
r!il6.4 .
7.5

o -----~
(0.65•0.76, 56.4•66.0)

-----

~

\" ~•.•-7.'

(0.65 •0.76, 56.4-66.0)
~ [OJ16•19 (1.6 -1.9, 12-14)
~[OJ39 -69 (4.0 -7.0, 29-51)

~
liquid gasket

[OJ :N'm (kg-m, ft-Ib)
~ :N.m (kg-m, in-Ib)

I) :
Apply
engine oil.

G)
Oilpump cover

@
Front cover

@
Inner gear

@
Outer gear
@

Regulator valve

@
Spring

(J)
Shims
@

Plug

@
Regulator valveset

@
Oilstrainer

• Always replace oilseal, gasket andO-ring withnewones.
• When installing oilpump, applyengine oiltoinner andouter
gears.
• Besure thatO-rings areproperly fitted.
LC-18

ENGINELUBRICATION SYSTEM
Oil Pump (Cont'd)
INSPECTION

Using afeeler gauge, checkthefollowing clearances:

Unit:mm(in)
Body toouter gearclearance
G)

Inner geartoouter geartipclearance
@
Body toinner gearclearance
@

Body toouter gearclearance
@

Inner geartobrazed portionofhousing
clearance @ 0.114
-0.200 (0.0045 -0.0079)
Below 0.18(0.0071)
0.05 -0.09 (0.0020 -0.0035)
0.05 -0.11 (0.0020 -0.0043)
0.045 -0.091 (0.0018 -0.0036)

• If
the tipclearance (@) exceeds thelimit, replace gearset.
• Ifbody togear clearances
(d),
CID,
@,
CID)
exceed the
limit, replace frontcover assembly.
REGULATOR VALVEINSPECTION

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

If damaged, replaceregulator valvesetoroil pump cover.
SLC049B
SLC451A

@-@=@
4.
Check regulator valvetooil pump cover clearance.

Clearance:
0.040 •0.097 mm(0.0016 •0.0038 in)

If
itexceeds thelimit, replace oilpump cover.
Oil Filter

The oilfilter isasmall, full-flow cartridge typeandisprovided
with arelief valve.

• The new andeXisting oilfilter designs differfromeach other
and arenotinterchangeable.
• Use Tool KV10115801 forremoving oilfilter.
LC-20

ENGINECOOLING SYSTEM

Water outlet
Cooling
Circuit

•:Thermostat open

o :
Thermostat closed

- ~.=-~:: --_-_-_-~ ~~
=1
Reservoir tank
I

SLC043B

System Check
WARNING: Never remove theradiator capwhen theengine ishot; serious
burns couldbecaused byhigh pressure fluidescaping fromthe
radiator.
Wrap athick cloth around thecap andcarefUlly removeitby
turning ita quarter turntoallow built-up pressure toescape
and then turnthecap allthe way off.
Cooling SystemInspection

CHECKING HOSES

Check waterhoses forproper attachment, leaks,cracks,
damage, looseconnections, chafinganddeterioration.

CHECKING RADIATORCAP

To check radiator cap,apply pressure tocap with atester.
Radiator caprelief pressure:
Standard

SLC613-A
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)

LC-21
•

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

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

•

less
than 0.18(0.0071)
0.12
-0.20 (0.0047 -0.0079)
0.05 -0.09 (0.0020 -0.0035)
0.05 -0.11 (0.0020 -0.0043)
0.05 -0.09 (0.0020 -0.0035)
Body
toouter gearclearance
CD

Outer geartoinner gearclearance

@

Housing toinner gearclearance @
Housing toouter gearclearance
@

Inner geartohousing clearance @

If
itexceeds thelimit, replace gearsetorentire oilpump
assembly.
SLC560A
ENGINE
LUBRICATION SYSTEM
Oil Pump (Cont'd)
INSPECTION

Using afeeler gauge, checkthefollowing clearances.

Unit:mm(in)

SLC561C
SLC568A REGULATOR VALVEINSPECTION

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

If
damaged, replaceregulator valvesetoroil pump assembly.
SLC049B LC-29

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