1995 NISSAN ALMERA N15 Service Manual

TROUBLEDIAGNOSIS FORNON-DETECTABLE ITEMS
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Malfunction Indicatorlamp(Mil)
&
Data Link
Connector (DlC)forCONSULT

IGNITION SWITCH
ON or START
EC-MIL-01

FUSE
7.5A BLOCK

ITJ
(JIB)

~
Refer
toEL-POWER.
-:Detectable line
for DTC
-: Non-detectable
line forDTC

I
DATA LIN<

CONNECTOR
FOR CONSULT

(fill)

~
S

ECM (ECCS
CONTROL
MODULE)

em

COMBINATION
METER (MALFUNCTION
INDICATOR
LAMP)

@

Y

13'01

U3.211

ORIL
G

1
m
LiJLiJ~LiJ
GIS
GY
IL G/R G/W

I~
It ~~

GIS
GYIL

JOINT
tt
lI~

CONNECTOR-5

~ 1bi=H~

ORIL ~
G/B
GY
IL G/R G/W

I$~
-F~---- -- --- - -
~$~-~$~-~$~-~$I

ORIL
CEID
GIS
GY
IL G/R
G/W

I II II

ORIL G/SGY/L G/R G/W

~ mrr15il~rrtru

LED-R SCISCICHECK SCI

RX TX CL

(In) (Out)

Refertolast page
(Foldout page).

~~
~OR

em
L

HEC024
EC-370

By-passpassage (Fueltemperature iscold)

INJECTION
SYSTEM

Fuel return control valve
(Only models forfrigid areas) Fuel
return passage
Injectionnozzle

•

Fuel temperature: Cold

To

fuel tank- Frominjection pump

SEF151R
EC-371 SEF152R

VE-TVPEINJECTION PUMP

G)
Engine slinger

@
Rear backcover

@
Injection pumpsprocket
@

Injection pumpbracket

@
Bracket

@
Bracket
(J)

Water hoses

@
Injection pump

@ Key
Removal
1. Put amatchmark acrossinjection pumpandinjection pump
bracket.
2. Disconnect battery
e
cable, electrical connectors and
accelerator wire.
3. Set No.1 piston atTDe onitscompression stroke.

TOC: Crankshaft pulleynotchwithout painted mark

4. Disconnect waterhoses forcold start device.
5. Remove fuelhoses (supply, returnandspill) andinjection
tubes.
6. Remove airduct andinjection pumptiming beltcover.
7. Remove injection pumptiming belt.
Refer toEM section ("Injection PumpTiming. Belt").

EC-372

VE-TVPEINJECTION PUMP ~
Removal (Cont'd)

8. Remove injection pumpsprocket withTool.

• Remove keyfrom injection pumpshaftandstore safely .

9. Remove injection pumpassembly.

Installation

1. With matchmarks aligned,installinjection pump.
2. Install keyoninjection pumpshaft,theninstall injectiol
pump sprocket.
• Use mark "A"onsprocket.
3. Install injection pumptiming belt.
Refer toEM section ("Injection PumpTiming Belt").

SEF155R
4.Adjust injection timing.
Refer to"Adjustment" onthe next page.
5. Install allparts removed.

EC-373
•

VE-TYPE INJECTION PUMP
SEF779A
Adjustment

INJECTION TIMINGADJUSTMENT (Plunger
lift

adjustment)
Preparation ofcold start device

1. Turn coldstart device linkage clockwise.
2. Set asuitable block[Thickness: about15mm (0.59 in)]
between coldstart device plunger andlinkage rod.
3. Turn crankshaft 2turns clockwise toset the device tonor-
mal position.

Checking
1. Set NO.1 piston atTDC onitscompression stroke.
TDC: Without paintedmark
2. Remove injection tubesandairbleeder onthe back ofinjec-
tion pump.
3. Set dial gauge soitsindicator pointstosomewhere between
1.0 and 2.0mm (0.039 and0.079 in)onthe scale.
4. Turn crankshaft 1turn clockwise andcheck thatdialgauge
indicates thesame value again.
5. Turn crankshaft counterclockwise about20to25 degrees,
then setdial gauge indicator to0mm (0in).
6. Turn crankshaft clockwiseandsetthe pump timing markto
the mark onthe crankshaft pulley.
Pump timing mark:Yellow painted mark
Injection timing:8
0
BTDC
7. Read plunger lift.
Plunger lift:
0.79 -0.85 mm(0.0311 -0.0335 in)atpump timing
mark
• When repeating thechecking, startwithstep 5.

Adjusting
1. Ifplunger liftisnot within thespecified value,adjust by
turning injection pump.
• Ifindication issmaller thanthespecified value,turnpump
body away fromengine.
• Ifindication islarger thanthespecified value,turnpump
body towards engine.
2. Tighten injection pumpsecuring boltsandnuts.
Nut:
~: 13-18 N.m (1.3-1.8 kg-m, 9-13 ft-Ib)
Bolt:
~: 49-59 N.m (5.0-6.0 kg-m, 36-43 ft-Ib)
3. Remove dialgauge andinstall airbleeder withnewwasher.
4. Install injection tubes.
Flare nut:
~: 22-25 N.m (2.2-2.5 kg-m, 16-18 ft-Ib)
5. Bleed airfrom fuelsystem.
Refer to"Water Draining, FuelFilter Check andReplacement"
of "ENGINE MAINTENANCE" inMA section.

EC-374

VE-TVPEINJECTION PUMP ~
Adjustment (Cont'd)
IDLE SPEED ANDMAXIMUM SPEEDADJUSTMENT
CAUTION:
• Donot remove sealingcapsunless absolutely necessary.
• Never disturb full-load adjusting screwbecause thisalters
the mixture ratioandmay result inserious engineprob-
lems.
• Donot adjust maximum speedadjusting screwtoapoint
exceeding specifications, becauseexceeding themaximum
speed maycause engine damage.
• When attaching tachometer pickup,remove fueltUbe
clamps. (Refertotachometer instructions.)
Idle speed adjustment •

• Refer toMA section.

Idle speed:
700~
~o
rpm
SEF156R Maximum speedadjustment

1. Start engine andwarm itup until coolant temperature indi-
cator points tomiddle ofgauge.
2. Connect tachometer pickuptoNO.1 fuelinjection tube.
• Refer tothe instructions ontachometer.
3. Depress accelerator pedalfullyunder no-load andread the
tachometer indication.

Maximum enginespeed(Under no-load):
5,400 rpm

4.
If
indication islower thanspecified maximum enginespeed,
adjust usingmaximum speedadjusting screw.
5. After adjustment, tightenlocknutsecurely andplug itwith
a sealing cap.

Dash potadjustment

1. Warm upengine tonormal operating temperature.
2. Attach tachometer andadjust touchspeed usingadjusting
screw.

Touch speed: 1,300rpm
EC-375

Nozzleside
Combustion
chamber side

SEF668A
SEF781A
SEF669A

:S
older ~Adiusting shim

c:,
Nozzlespring

~ '~[;{~I:,""'
pi,",

Nozzle needle~~(''''-
Nozzle bOdyr ~
Nozzle nut)
SEF670A INJECTION
NOZZLE

CAUTION: Plug flare nutwith acap orrag sothat nodust enters thenoz-
zle. Cover nozzle tipfor protection ofneedle.

Removal andInstallation

1. Remove fuelinjection tubeandspill tube.
2. Remove injection nozzleassembly.
Also remove washers fromnozzle end.
3. Install injection nozzleinthe reverse orderofremoval.
Injection nozzletoengine:
~: 59-69 N'm (6.0-7.0 kg-m, 43-51 ft-Ib)
Injection nozzletotube:
~: 22-25 N'm (2.2-2.5 kg-m, 16-18 ft-Ib)
Spill tube:
~: 39-49 N'm (4.0-5.0 kg-m, 29-36 ft-Ib)
a. Always cleanthenozzle holes.
b. Always usenew injection nozzlegasket.
c. Note thatsmall washer shouldbeinstalled inspecified
direction.
d. Bleed airfrom fuelsystem.

Disassembly
1. Loosen nozzlenutwhile preventing nozzletopfrom turning.
2. Arrange alldisassembled partsinthe order shown atleft.

EC-376

SEF830INJECTION
NOZZLE
Inspection

Thoroughly cleanalldisassembled partswithfresh kerosene or
solvent.
• Ifnozzle needle isdamaged orfused, replace nozzle
assembly withanew one.
• Ifend ofnozzle needle isseized orexcessively discolored,
replace nozzleassembly.
• Check nozzle bodyanddistance pieceforproper contact. If
excessively wornordamaged, replacenozzleassembly or
distance piece.
• Check distance pieceandnozzle holderforproper contact.

If
excessively wornordamaged, replacedistance pieceor•
nozzle holder.
• Check nozzle springforexcessive wearordamage. If
excessively wornordamaged, replaceitwith anew spring.

Cleaning
a. Donot touch thenozzle mating surface withyour fingers.
b. Towash thenozzles, useawooden stickandbrass brush
with clean diesel fuel.

1. Remove anycarbon fromexterior ofnozzle body(except
wrapping angleportion) byusing Tool.
2. Clean oilsump ofnozzle bodyusing Tool.

KV11290150 SEF831
SEF832
3.
Clean nozzle seatbyusing Tool.

This jobshould beperformed withextra precautions, since
efficiency ofnozzle depends greatlyonagood nozzle seat.
EC-377