1993 NISSAN SERENA Service Repair Manual

INJECTION
PUMP
Testing ol Inieclion
Pump (Conl'd)
6. Position a@e eralion @nlrol lever
O in
idle posilion.
7. Insen a 1.5 dm (0.0ss
in) bl6k
sauqe (leeler
sauae)
beiveen lhe inlemediale lever
o and
lhe inlemediate
l.vff backol
O, 6
shown in the i lu$raton.
3. Adtusr ft€ inl€mod.le sdjusling scr6w
O untillh.
cl€ar
an@ belween screw
O and
lever
@ is
1 mn (0039 in)
L secure scrcw
O wllh
nul
@.
'ligbni.g
loqB:6 -I
N m (0.6 -
(I9
kg-h,43- 6,5
lr.rb)
Roialelh6 cold $an d€vi.e l.v.f
@ @unl.rclockw
s6 (pull
lowad X) and nake suE lhal lever @ntacts lhe slopper on
rhe cold sian devi@ stopper prate
o .
confim thal the iimer oislon slroke is wilhin soec li€ ons.
'lin* pi.td 3trok€: 121 -
125 mn (0044 -
ooag in)
It limd
Dislon stok€
s nol wllhin sD€.iii€lions. mov€ rh6
sropp€r plal6
in th6 elongar€d sbr
un l
th6 gauge
@ading
fi is
wilh n
specit€tons.
-3. Sec-re ll-e lroppe' pdle
by mears ol te soc*l l-.sdl
tlghtenlng rorq@: 5 -
7 N.n (05 -
oJ kg-n, 3.6 -
5,i
ff.tb)
.) Md6.u6 that th. gaug€
EEdlng Etuma lo EE vh.n OF
6ld d.rt dwi6 Lwr b ElEs€d.
b) Confim rh€.dF.tmr* by tlwlnq ih6 @ld
6t rt
dsle
l€Er lwo d ihm dma
14. Remove too, XVl12a2A19, ircm ihe lnjecton pump.
15. lfsiallcover otiimer at low prcssuGside.
AdlGtnsnt ol luel Inl€ctron
un(br lull
lo€d
1 Sel conlrol ev€r al lul-oad by pulling
sp ng or lslng
2. Apply 12
volE lo €clival€ rr€
cursol€noid valv€
3. l'r.asu€ lu€ld€livsry at sp€ciled ini€clion plmp
rpm.
8€16r to S,D.s. ld tu61 d€livsy v.l@.
4. lllu6ldeiveryis nolwithin standad
E.ge. adiu6l by tum-
ing lu l-
oad adlusling s.€w.
5. Ch€.k injeclion pump
condilon. relering
lo ln6p€clion
values.
EF & EC-372

INJECTION
PUMP
Tesling of Injection Pump (Cont'd)
Adlustnenl ol tuel InFctlon
dudng ldle
1 Plllsp ng unli idle speed adjusli.g scrcw @hes into @n-
2. Funish vohage
ol 12 volts lo aclivale tu61 .!l solenoid
3. [,leasure fue n]eclion al specifed tuelinjeclon pump
rpm.
F.l€r ro s.D.s. tor idl. lwl ini.crid anoum ot .djErn.m
! l'ue 'n_ed01 .
ror wirhn cpe.ili€d
rfi96, adtucrbylu r.
ins idl6 spo€d adjustng scf€w.
nghslng rhb sw wll inc@e ftFr hjecrion mdnt,
M6k6 sud thdi 6dbl l€w .ngb ia 3al .l 21 lo 2Se r$ge
fi onrrol l€w .ngle la nol wlthln
3pecned ranqe, adllst h
by epo.ftlonlng control l4r
on conrrol shatt (Ore
etu
Ater conlrcl lewr has been eio.llioftd, be suE ro ma
&€ andrn ol tuel injelion .l idl. 3p€€d .qEin.
Check injedion pump
conditon, €l€trng lo insp€cton
Adlush€nt ol tusl Inl€crlon durlng
siart
1. S€t
@dol lever
at tull oad by pulng
sprng or usno
2. Fumish vollage ol 12 volE lo aclival€ lle
.ul solenoid
3. M€a.ur€
tue lntection al specilled luel njeclonpumpem.
Reler to S.D.t id 3rad tuer i.iecrid amouni ot .djwirem
. r nol wthn
specilicaloas rd\e e-rc "Ms d'n€nsion 's
within specilicalion. Ralef lo s1€p 25 lor njeclion Pump
AdjGbnenr ol luel ini$ion al nar. pump
rym
I Sel @rlol eve
". 'lul.oad
by oLllng o' us'nq
2. Funsh vollagg ot l2 vols lo actvate luer
cut sotenod
3. M€asuG lu€ldelivery al6pectied injeclion pump
lpm.
R6t . to s,D,s. lor nd. pump
spe 4. ll lue
delivery is notwthin standad range, adjusr byl!h-
ing dar. speed adjust ns scr6w.
5. Tlghlonhg
s@ fill inc|@ luel inlecllon,
M.k6 guB
rhar @nrrcl l4r
angle ls wllhln
Ch€.k inieclion plmp
coidilion rcte(ng to
,
HLr'l?
EF & EC-373

INJECTION
PUMP
Tesling oI Iniecdon Pump (Contd)
Mg€sur€m€nl ol ov€rnow atnount
1. Sel @nlol levef al 'lull'load"
by pullng
sprng or usinq
2. Flhish voliag€
ol 12
volt.
to actvate luel cut soLenoid
3. Measlre luel overf ow ai specil ed tuel ini6clion lpm.
Aet r to S.D's. lor ftrflow amdnl ot In.F{o vale.
Op€ralion chek ol lu.l
cul solenold talv€
Wh€n €ngiro s idlinq and lu€l
cul eleno'd valve
currert 's
OFF, b.€u@lheE
is no fue being injeled. This ch6ck has lo
be done lor
aDoox.5 seconds.
lnstallation
l.stalli.jedion pump
ass6mbly in
lhe eveF6oderof removal,
1 . Conftm lhat No. 1
cylinder is sel ai T.D.C- on ls comprcs-
2. Insiarl injeclion pump
(R6rer
to EM *ctio.).
Tspo.adly llolit n ftFl iniElion pqmp.
3. Insrall inj€clion pump
Sprcck€t (Feter
to
|o) hi,crid
p{mp
.p@kct nur
s9 -
3e N.m (&0 -
70 tlfi, rt3
-
51
4. ln.iall
timinq beti (Befer
io EM soclion).
5, Adjust njeclion liming.
. Conltm lhat aliOnm€nt
matk on injeclion pump
llanqo
m€eLr lhe maft on injeclion pump
backet.
N\-q
'*64
/1d,/ -u
EF & EC-374

INJECTION
PUMP
l9 lnstallation
(Cont'd)
(1) F€mov6lhe plug
bol lrom ear sid€
of inl€cllon pump
a.d
(2) Mak€ suf€ to loosen pump
nuls and tack€l boll.
(3) Tum chnkstuft counlercLookwise
20 to 25
das@s lrom
No.I cylinder Top
D€ad C€nler positon.
(4) Fi.d th€ dial
aauq€ needle
Gsl poi.l,
then sel lha gauqe
Checklng i. Rolare lhe cdnkshan puley
clockwise lwo llhs
untllh6
pul€y and injeclion pudp
limng malks maLh (with
lh€
cyindd No. 1 al TDC on ils @mpression stbk€).
slowly
'orrle ihe .rarishal pLlley
so a
ton pump
housing ma* and read p
ungei in.
0,23+o01 mm (0.02&
+ 0.(xx)4 in)
2. ll galg€
reading is not within speciied range,
l@sen the
inj€ct on pump
secuing nuls udil$e pump
can be manu-
atly rotated. Roiat€
lh€ pump
clockwise and rcslan the
seft ng ope€lLon lrom poinl5.
(6)
Tun
cankshan cbokwlse unlilNo.1 cylinderis
setalTop
Dead Cenlefon ns codpresslor sltok€.
F€ad dial gauge
ind €to..
0.73*0,01 nn (Om87+oIXXX
In)
(7) ll dial gauge
indicalio. is nol within lhe above Enge, tun
pump body unllLit is
When s4ltlng lhe di.l gaug€,
turn rh€ injeclion punp
@nleF
d@kwilF and the @nlsh.lt d@kwi* lo
€liminata any play,
6. Tighten i.je.lion pump
5*!r€y.

)/t'r.
ffi;f
{ \}N K
t:
EF & EG375

INJECTION
PUMP
- E:il hstallation
(Cont'd)
3. Iq en ntecllon pump
secuing nuts.
" {13 .
1'a tsfi, 9 -
13 tt tb)
4. Bemove sp€ciallooland insiallplug wllh n6w washef.
Always Eplae plug
boh ga3lct
" t4 .-2o
N n
tt,4 .2.0
ks{, to. i4 tt tb}
5. Co.n€.t luelinjecton
tube. in the oder
rDl: lnleclld tube naE nut
''
2i.25 Nn (2e.25
kqn. t6 -
ta
6. Bl€6d ar fbm iu€l sysl€m. n-rb)
Adius|medl
IDLE SPEED AND IIITAXIMUM SPEED AI}IUSTMENT
. Do
not tm4
slhg €pa uda .b&lut ly n€@@ry.
. NoG
d|3lulh tho tull-loed dFsrhg &tu b.dus rhie
.h.G rhe nillue
hlio.nd may Euh h ends englne
. Do not djusr rhe ndrnuh .!€€d 6djGnng etu b a
polnl er(@eding specifcrtid.; 6xc€.ding th. mdinun
.Ped hEy eus mgiE d.m.g€.
B.bF lthhlng the lahmeter pickup,
em@ tuol tubo
clampo, (Reisr
to lachm.tor inshuctioBj
1 . $an fi6 enAin€ and k€6p it idllnq
unt I
the opeating iem-
2. fun lhe srew opeafinq on lh€ aGl6Elion 6nrb lever
unlillhs angine €aches
an idle
speed o1700+50 lpm
EF & EC-376

INJECTION
PUMP
n11 I
r\|ji Adiuslmed
(Cont'd)
Marimum sP.€d adjtlgiment
1. Stan !p 6ngin€ and wam I !p unli oolanl l€mp€Etura
indi.alor poinb
lo mddl6 ol gaug6.
Connecr rachomerer pi.kup
ro No l
luelinjectonl!be.
Feter to the irstructions on taohoneter.
D€prcss accoloalor p€dalillly
und6r noload and €ad
the
Mdlmum englE sped (Under
Fl@d):
4. laindielion s owerlhan spocifod maximum efg nesp€€d,
adjusl usins mdmum sp6d adjuslins scr€w
5. AfGr adtustr€nl,lighten lock nut
secuEly and pllg
li wiih
Adju8lment ol cold srad devie (am)
1, Contimihatlheintemedialel€vef isadiusl€d.sd66cribed
-nder "Adjusrnonr ol 6ld sEr d€v e
llinr ql '
r '
Teslrg
2. Bolal. lhe mld
slart d€vice lever
@ counlerclockwise
(pull
lowad X) and make surc the evd conlacts lh6
slopper on
lhe oold $an dovics slopp6r plale
O.
3. Adjusl adjushonl *@w
O untilthe
engine rpn is wirh n
E glre
.pm: 1,ru +
lm rFrn
4. Secu€ sccw
@ with
nul
@.
Tlght nhE ioqE: 2 -
3 N.m (02 -
03 tgfi, i,4 -
22
1. Wam up 6.gin6
u.lilnoma opeEting tenpeatu€.
2. Atiach
iachomeler a.d adjusr touchspeed using adiusting
Touch .F€d: 1300
Am
3.
EF & EC€7f

INJECTION
PUMP
Adjustment (Cont
d)
F.IC.O. €djusbne (Arc
mo L secure
th€ backer
ot ihe F.|.C.D.
O, wilh
fixins borls
O,
elhalth. dea6nce belween the F.|.C.D.l6v€.
O andth€
inl.modiale lever
O is
1 mm.
Tlghrenhg torqE:
5 -
7 N.m (05 -
07 kg{, 3.6 -
5l tub)
2. Wam up anqine
undl nomd opo€ling l€mpebtuE.
swftch on l'/C
and adjusl idtins sp.€d,
with adjustmenr
.c€w @, unii
engin€ tpm k wllhin
.peclli€ilons.
Englm rprn: 3$*5o
Dn
Potentiom6r adlu*nem
,djusl poieniom6t6/s
nstal ation pGltion
unlit lhe
outDd von-
aqe is within specili@lions.
R.Gr ro S,D.s. lor 3p€cn
d output 6h!g€.
EF & EC€78

INJECTION
NOzZLE
or €9 & lhrt no dusr .rt F ilE nd-
Bemoval and lnstallalion
1. R€mov6lu€l ntoclon
lube a.d spit tube.
2. F€move inlecton
nozz e assembly
Al$ tmde
@.heB lrcm nozre end,
3. Insrall injerion noz
e in
ihe everce oder ot
Inj.crion nozle
io englre:
" {6.0 .
7.o ts-m, 43 -
51 fi.tb)
hiecrion n@le lo llber
" (22 -
2,5 kg{, 15 -
rs n-|b)
" (4.0 -
5.o kgn, 29 -
35 itnb)
4 alw.F ds rhe nozlle
hole,
b. Arw.y.
ue lw
Injelion n@1.
s$k€r.
c. lloto tnal .mall Eshd should be iGt
lled
d. Bled
alr lrcm hcl systen,
Dlsassembly
1. Loosen
nozzle nutwh leprcventng nozzleropiom
tuning.
2. Ardnge oldisasienb6d pa.s
ln lhe o de' saosl atl€tt.
I
LI
EF & EC€7S