1995 NISSAN ALMERA N15 fuel cap release

BASICSERVICE PROCEDURE

• FUEL PRESRELEASE. D
FUEL PUMP WILLSTOP BY
TOUCHING STARTDURING
IDLE.
CRANK AFEW TIMES AFTER
ENGINE STALL

---S-T~-RT--
SEF823K
Fuel
Pressure Release

Before disconnecting fuelline, release fuelpressure fromfuel
line toeliminate danger.

(ij\
1.Turn ignition switch"ON".
~ 2.Perform "FUELPRESSURE RELEASE"in"WORK
SUPPORT" modewithCONSULT.
3. Start engine.
4. After engine stalls,crankittwo orthree times to
release allfuel pressure.
5. Turn ignition switch"OFF".

SEF921P
00
~:

3.
4.
Remove
fuseforfuel pump. •
Start engine.
After engine stalls,crankittwo orthree times to
release allfuel pressure.
Turn ignition switchoffand reconnect fuelpump
fuse.

Vacuum Fuelpressure

..... L
To pressure regulator
Fuel
Pressure Check

• When reconnecting fuelline, always usenew clamps.
• Make surethatclamp screwdoesnotcontact adjacent
parts.
• Use atorque drivertotighten clamps.
• Use Pressure Gaugetocheck fuelpressure.
• Donot perform fuelpressure checkwithsystem operating.
Fuel pressure gaugemayindicate falsereadings.

1. Release fuelpressure tozero.
2. Disconnect fuelhose between fuelfilter andfuel tube
(engine side).
3. Install pressure gaugebetween fuelfilter andfuel tube.
4. Start engine andcheck forfuel leakage.
5. Read theindication offuel pressure gauge.

At idling:
With vacuum hoseconnected
Approximately 245kPa (2.45 bar,2.5kg/cm
2,
36psi)
With vacuum hosedisconnected
Approximately 294kPa (2.94 bar,3.0kg/cm
2,
43psi)

If results areunsatisfactory, performFuelPressure Regula-
tor Check.

Fuel Pressure Regulator Check

1. Stop engine anddisconnect fuelpressure regulator vacuum
hose fromintake manifold.
2. Plug intake manifold witharubber cap.
3. Connect variablevacuumsourcetofuel pressure regulator.
4. Start engine andread indication offuel pressure gaugeas
vacuum ischanged.

Fuel pressure shoulddecrease asvacuum increases. Ifresults
are unsatisfactory, replacefuelpressure regulator.

SEF7188
EC-33

BASICSERVICE PROCEDURE
SEF310R

Vacuum
Fuelpressure

.... L
To
pressure regulator

SEF718B

'nsu'a,or~7

a-ring~1 ~
~> ~

InsUlalor~7
OJ'

Om~riJ$ _.
~lnjeCIOr

kJ

Insulator
11+-
1

~'I"
Localeplate
•. onthis side.
a-ring .
I

FuellUbe~i '.
assembly ,.
~'nsulator
I
SEF616N
MEC710B Fuel
Pressure Regulator Check

1. Stop engine anddisconnect fuelpressure regulator vacuum
hose from intake manifold.
2. Plug intake manifold witharubber cap.
3. Connect variable vacuumsourcetofuel pressure regulator.
4. Start engine andread indication offuel pressure gaugeas
vacuum ischanged.

Fuel pressure shoulddecrease asvacuum increases. Ifresults
are unsatisfactory, replacefuelpressure regulator.
Injector Removal andInstallation

1. Release fuelpressure tozero.
2. Disconnect vacuumhosefrompressure regulator.
3. Disconnect fuelhoses fromfueltube assembly.
4. Disconnect injectorharness connectors.
5. Remove injectors withfueltube assembly.
• Push injector tailpiece.
• Donot pull onthe connector.
6. Install injectors.
• Clean exterior ofinjector tailpiece.
• Use new O-rings.
7. Install injectors withfueltube assembly tointake manifold.
8. Install fuelhoses tofuel tube assembly.
9. Reinstall anyparts removed inreverse orderofremoval.

CAUTION:
After properly connecting fuelhose toinjector andfuel tube
assembly, checkconnection forfuel leakage.
EC-242

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

ENGINEMAINTENANCE ~
Checking CoolingSystem(Cont'd)

Pull thenegative-pressure valvetoopen it.Check thatitcloses
completely whenreleased.

SMA871B CHECKING COOLINGSYSTEMFORLEAKS

Apply pressure tothe cooling systemwithcaptester tocheck
for. leakage.

Testing pressure:
157 kPa (1.57 bar,1.6kg/cm
2,
23psi)
CAUTION: Higher pressure thanthespecified valuemaycause damage to
radiator.
Checking Fuellines

Inspect fuellines andtank forimproper attachment andfor
leaks, cracks, damage, looseconnections, chafinganddeteri-
oration. If necessary, repairorreplace faultyparts.

SMA803A

3 (0.12) Unit:mm(in)

-- --- ----,;~-r--1

"
,

-,-,-,
~-

_______ .J",_~__

28 (1.10)

~ Fuel hose clamps

1.0 -1.5 N.m
(0.10 -0.15 kg-m,

8.7 -13.0 in-Ib)

MMA104ACAUTION:
Tighten high-pressure rubberhoseclamp sothat clamp endis
3 mm (0.12 in)from hose end.
Tightening torquespecifications arethesame forallrubber
hose clamps.
Ensure thatscrew doesnotcontact adjacent parts.
Changing FuelFilter
WARNING: Before removing fuelfilter, release fuelpressure fromfuelline
to eliminate danger.
MA-22

ENGINEMAINTENANCE [][]

Checking CoolingSystem(Cont'd)

Pull thenegative-pressure valvetoopen it.Check thatitcloses
completely whenreleased.

CHECKING COOLINGSYSTEMFORLEAKS

Apply pressure tothe cooling systemwithcaptester tocheck
f~r leakage.
Testing pressure:
157 kPa (1.57 bar,1.6kg/cm
2,
23psi)

CAUTION:

Higher pressure thanthespecified valuemaycause damage to
radiator.

SMA811C
SMA803A
Checking
FuelLines

Inspect fuellines andtank forimproper attachment, leaks,
cracks, damage, looseconnections, chafingordeterioration.
If necessary, repairorreplace faultyparts.

3 (0.12) Unit:mm(in)

_._-- --,"'~'r---1

"
,

-
-
---;--,
-,---

•• J..
_J- __

28 (1.10)

~ Fuel hose clamps

1.0 -1.5 N.m
(0.10 -0.15 kg-m,
8.7 -13.0 in-Ib)

MMA104A
• FUEL PRESRELEASE.
0

FUEL PUMP WILLSTOP BY
TOUCHING STARTDURING
IDLE_
CRANK AFEW TIMES AFTER
ENGINE STALL.

---S-T~-RT--
SEF823KCAUTION:

Tighten high-pressure rubberhoseclamp sothat clamp endis
3 mm (0.12 in)from hose end.
Tightening torquespecifications arethesame forallrubber
hose clamps.
Ensure thatscrew doesnotcontact adjacent parts.

Changing FuelFilter

WARNING:
Before removing fuelfilter, release fuelpressure fromfuelline
to eliminate danger.

rF.i\
1.Start engine.
~ 2.Perform "FUELPRESSURE RELEASE"in"WORK
SUPPORT" modewithCONSULT.
3. After engine stalls,crankengine twoorthree times
to make surethatfuel pressure isreleased.
4. Turn ignition switchoff.

MA-32

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

ENGINEMAINTENANCE
Checking CoolingSystem
HOSE ANDCLAMP CHECK

Check hosesforimproper attachment, leaks,cracks, damage,
loose connections, chafinganddeterioration.

CHECKING COOLINGSYSTEMFORLEAKS

Apply pressure tothe cooling systemwithcaptester tocheck
for leakage.

Testing pressure:

157
kPa
(1.57
bar,
1.6
kg/cm
2,
23psi)
CAUTION: Use ofhigher pressure thanthatspecified valuemaycause
damage toradiator.
CHECKING
RADIATORCAP

1. Check reliefpressure withcaptester.

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)

Replace radiatorcapifpressure isnot within thespecified

SLC613-A
values.
2. Pull thenegative-pressure valvetoopen it,and check that
it closes completely whenreleased.

Hose adapter
SMA990A
SMA803A Checking
FuelLine

Inspect fuellines andtank forimproper attachment, leaks,
cracks, damage, looseconnections, chafinganddeterioration.
If necessary, repairorreplace malfunctioning parts.

MA-40