Page 1514 of 1701

ENGINEMAINTENANCE
Checking DriveBelts
Crankshaft
pulley
With airconditioner Compressor Crankshaft
pulley
Without airconditioner
A:
N.m (kg-m, ft-Ib)
" :Check point
SMA808C
Used beltdeflection
Drive belts Deflection
Deflection
of
Limit afteradjust- new
belt
ment
Alternator
With airconditioner com-11.5
-12.5
6.5-7.5
7 -8
pressor (0.453
-
(0.28-0.31) (0.256
-
0.492) 0.295)
Without airconditioner
12-13
8-9
7-8
compressor (0.47-0.51)
(0.31-0.35)
(0.28-0.31)
6-7 4-53.5
-4.5
Power steering oilpump
(0.24-0.28)
(0.16-0.20) (0.138
-
0.177)
Applied pushing force
98N(10 kg,22Ib)
Unit:
mm(in)
1.
Inspect forcracks, fraying, wearoroil adhesion. If
necessary, replacewithanew one.
2. Inspect drivebeltdeflections bypushing onthe belt midway
between pulleys.
Adjust ifbelt deflections exceedthelimit.
Belt deflection:
Inspect drivebeltdeflections whenengine iscold.
SMA328C
Alternator
pulley
r
Crankshaft
/ pulley
Alternator
drive belt
<;:J
Engine
front
o
Engine
front
Altemetor
drivebeltfitting piece
(Modell withoutelrconditioner)
Alternator drivebelt
Set abelt inboth crankshaft
and alternator pulleysshown
in the figure.
MA-28
Page 1519 of 1701

ENGINEMAINTENANCE ~
Changing FuelFilter (Cont'd)
~ 1.Remove fuseforfuel pump.
~ 2.Start engine.
3. After engine stalls,crankengine twoorthree times
to make surethatfuel pressure isreleased. •
4. Turn ignition switchoffand install fuseforfuel pump.
i
Unit: C(Imp qt)
SMA790C
5.Loosen fuelhose clamps.
6. Replace fuelfilter.
• Becareful nottospill fuelover engine compartment. Place
a shop towel toabsorb fuel.
• Use ahigh-pressure typefuelfilter. Donot use asynthetic
resinous fuelfilter.
• When tightening fuelhose clamps, referto"Checking Fuel
Lines" .
Changing AirCleaner Filter
Viscous papertype
The viscous papertypefilter does notneed cleaning between
renewals.
Changing EngineOil
WARNING:
• Becareful nottoburn yourself, asthe engine oilishot.
• Prolonged andrepeated contactwithused engine oilmay
cause skincancer; trytoavoid direct skincontact withused
oil. Ifskin contact ismade, washthoroughly withsoap or
hand cleaner as$oon aspossible.
1. Warm upengine, andcheck foroilleakage fromengine
components.
2. Remove drainplugandoilfiller cap.
3. Drain oiland refill withnewengine oil.
Refill oilcapacity (Approximate):
With oilfilter change
Without oilfilter change
3.4
(3)
3.2 (2-7/8)
CAUTION: • Besure toclean drainplugandinstClili withnewwasher.
Drain plug:
~: 29-39 N'm (3.0
0
4.0 kg-m, 22-29 ftolb)
• Use recommended engineoil(API SE,SF,SGorSH grade).
The refill capacity changes depending onthe oiltemperature
and drain time,usethese values asareference andbecertain
to check withthedipstick whenchanging theoil.
MA-33
Page 1520 of 1701
ENGINEMAINTENANCE [}[]
Changing EngineOil(Cont'd)
4. Check oillevel.
5. Start engine andcheck areaaround drainplugandoilfilter
for oilleakage.
6. Run engine forafew minutes, thenturnitoff. After several
minutes, checkoillevel.
Refill oil10this
"H" level.
Do not overfill.
SMA390C
Changing OilFilter
1. Remove oilfilter withTool.
WARNING:
Be careful nottoburn yourself, asthe engine andtheengine
oil are hot.
2. Clean oilfilter mounting surfaceoncylinder block.Coat
rubber sealofnew oilfilter withengine oil.
2/3
ofaturn
-------
OK SMA010
3.Screw inthe oilfilter untilaslight resistance isfelt, then
tighten anadditional 2/3turn.
4. Add engine oil.
Refer toChanging EngineOil.
• Clean excess oilfrom engine.
Changing SparkPlugs(Platinum-tipped type)
1. Disconnect ignitionwiresfromspark plugsatboot. Donot
pull onthe wire.
MA-34
Page 1524 of 1701

ENGINEMAINTENANCE
Air conditioner
compressor
SMA442C
AMA054 Manifold
NutCheck
1. Remove exhaustmanifold cover.
2. Tighten manifold boltsandnuts tothe specified torque.
Refer to"SERVICE DATAANDSPECIFICATIONS (SOS)".
3. Install exhaust manifold cover.
Checking DriveBelt
WARNING:
Inspect drivebeltdeflections whenengine iscold. When engine
is hot, check deflections atleast 30minutes afterengine has
been switched off.
1. Inspect beltsforcracks, fraying, wearoroil adhesion. If
necessary, replacewithnewones.
2. Inspect drivebeltdeflections bypushing onthe belt midway
between pulleys.
3. Adjust belt
deflection
if
it
exceeds thelimit.
Belt deflection:
Unit:mm(in)
Used beltdeflection
Deflectionofnew
Limit Deflection
after
belt
adjustment
Alternator 14(0.55) 11
-13 9-11
(0.43 -051) (0.35-0.43)
Air conditioner
14(0.55) 11
-13
9-11
compressor (0.43-051) (0.35-0.43)
Power steering oil
8(0.31) 5-7 (0.20 -0.28) 4-6 (0.16 -0.24)
pump
Water pump
without power
-
8(0.31) 6(0.24)
steering
Applied pushing
98N(10 kg,22Ib)
force
Inspect drivebeltdeflections whenengine iscold.
Changing EngineCoolant
WARNING:
To avoid thedanger ofbeing scalded, neverattempt tochange
the coolant whentheengine ishot.
1. Set heater "TEMP" controldialtothe max. "HOT" position.
• Make surethatairconditioner switchis"OFF".
MA-38
Page 1527 of 1701

ENGINEMAINTENANCE
Changing AirCleaner Filter
The viscous papertypeaircleaner filterdoes notrequire any
cleaning operation betweenrenewals.
Water Draining, FuelFilter Check and
Replacement
DRAINING WATER
Open drainvalve atthe bottom offuel filter.
FUEL FILTER CHECK
Check fuelfilter forfuel leakage, damageandother abnormal
signs.
•
SMA794C REPLACING FUELFILTER
1. Disconnect watersensor connector andreplace fuelfilter
with anew one.
Hand-tighten fuelfilter byabout 2/3turn after O-ring touches
mounting surface.Followtheinstructions onfuel filter.
2. Connect watersensor connector andbleed fuelsystem.
FUEL SYSTEM AIRBLEEDING
1. Move priming pumpupand down until
there issuddenly
more resistance inthe movement. Thenstopthisaction and
start theengine.
2. Ifengine doesnotoperate smoothly afterbeing started,
race ittwo orthree times.
When refilling empty-fueltank, bleed airout offuel system.
Changing EngineOil
WARNING:
• Becareful nottoburn yourself, asengine oilishot.
• Prolonged andrepeated contactwithused engine oilmay
cause skincancer; trytoavoid direct skincontact withused
oil. Ifskin contact ismade, washthoroughly withsoap or
hand cleaner assoon aspossible.
1. Warm upengine, andcheck foroilleakage fromengine
components.
2. Remove oildrain pluganddrain oil.
MA-41
Page 1528 of 1701
ENGINEMAINTENANCE
Changing EngineOil(Cont'd)
3. Tighten oildrain plug.
4. Fillwith engine oil.
Oil refill capacity:
Without oilfilter
4.6 C(4 Imp qt)
With oilfilter
5.1 C
(4-1/2
Impqt)
• Use recommended engineoil"API CD"with suitable vis-
cosity.
5. Confirm oillevel andwarm upengine.
6. Recheck oillevel andadjust itto "H" level ifnecessary.
Refill oiltothis
"H" level.
Do not overfill.
SMA822C
Changing EngineOilFilter
1. Remove oilfilter withTool.
WARNING:
Be careful nottoburn yourself, asengine andengine oilare
hot.
SMA412C
SMA167B
2.Before installing newoilfilter, wipeclean oilfilter mounting
surface oncylinder block,andapply alittle engine oilto
rubber sealofoil filter.
SMA010 MA-42
Page 1529 of 1701
![NISSAN ALMERA N15 1995 Service Manual
2/3
ofaturn
ENGINE
MAINTENANCE @Q]
Changing EngineOilFilter (Cont'd)
3. Screw oilfilter onuntil aslight resistance isfelt, then tighten
an additional 2/3turn.
4. Warm upengine andcheck oillevel NISSAN ALMERA N15 1995 Service Manual
2/3
ofaturn
ENGINE
MAINTENANCE @Q]
Changing EngineOilFilter (Cont'd)
3. Screw oilfilter onuntil aslight resistance isfelt, then tighten
an additional 2/3turn.
4. Warm upengine andcheck oillevel](/manual-img/5/57349/w960_57349-1528.png)
2/3
ofaturn
ENGINE
MAINTENANCE @Q]
Changing EngineOilFilter (Cont'd)
3. Screw oilfilter onuntil aslight resistance isfelt, then tighten
an additional 2/3turn.
4. Warm upengine andcheck oillevel.
5. Adjust oillevel ifnecessary. •
Refer toStep 4in "Changing EngineOil",MA-42.
i
• Clean excess oilfrom engine.
SMA229B Checking InjectionNozzle
1. Remove injection deliverytubesandfuel spill tube.
2. Remove nozzlewithasuitable tool[span 27mm (1.06 in)].
WARNING:
When usingnozzle tester,becareful nottoallow diesel fuel
sprayed fromnozzle tocome intocontact withyour hand or
body, andmake surethatyour eyes areproperly protected.
3. Clean andcheck nozzles.
4. Install nozzle toinjection nozzletesterandbleed airfrom
flare nut.
5. Check initialinjection pressure bypumping testerhandle
one time persecond.
EF791A
6.Install injector topressure tester.
7. Check initialinjection pressure bypumping testerhandle
slowly (onetime persecond).
Injection pressure:
12,749 kPa(127.5 bar,130kg/cm
2,
1,849psi)
• Always checkinitialinjection pressure beforeinstalling new
nozzle.
Good
\
I
,
,
I
Wrong SEF672A
8.Check fuelspray pattern bypumping testerhandle quickly
(4 or 6times persecond).
9. Ifinitial injection pressure orinjection nozzleisnot normal,
adjust orclean injection nozzleorreplace it.
Refer toEC section forinjection pressure adjustment.
10. Install allinjection nozzlesandsecurely connectfuelspill
tube anddelivery tubes.
11. Bleed airfrom fuelsystem andcheck forfuel leakage with
engine running.
EF794A
MA.43
Page 1530 of 1701
ENGINEMAINTENANCE
Checking InjectionNozzle(Cont'd)
Nozzle side
Combustion
chamber side
SEF668A Checking IdleSpeed
PREPARATION
1: Make surethatinjection timingiscorrect.
2. Make surethatinjection nozzlesareingood condition.
3. Make surethatthefollowing partsareingood condition.
• Air cleaner clogging
• Glow system
• Engine oiland coolant levels
• Air intake system (Oilfiller cap,oillevel gauge, etc.)
4. Set shift lever in"Neutral" position.Engageparkingbrake
and lock both front andrear wheels withwheel chocks.
5. Turn offair conditioner, lightsandaccessories.
6. Warm upengine tonormal operating temperature.
7. Attach adiesel tachotester.
8. Race engine twoorthree times andcheck idlespeed.
Idle speed (M/T):
700~go rprn
9.
If
itis out ofspecification, adjustidlespeed withidlespeed
adjusting screw.
Securely locktheadjusting screwwithlock nut.
Idle speed
adjusting screw
Fuel injection pump
SMA420C
Replacing TimingBelt
Refer to"TIMING BELT"inEM section.
MA-44