1993 NISSAN SERENA valve cover

CRANKCASE
EMISSION CONTROL SYSTEM
Thissysrem rctuns
b ow-bygasb bolh lhe nlake manilotdand
The positive
cankese venliaton (P
C.V.) valv6 s provid€d
ro
@nductcrankcase blow'by gas
to th€ inlak6 man iold.
Dufng padiallhone
opealion ol lhe efglne. lhe intake man
ilold sucks lhe b ow-by gas
lhrough the P.C.V. valve.
Normally,lhe capaciq/ ol lhe valve is sufticienl lo hande any
blow-by and a smal amou.l ol ventlating an.
The ventlaiing air slhen dEwn lbm lh€ an nlerlubes,lhrough
fte hose conn€ctng an nd Iubas lo rocker
cover, i.lo lhe
Under iull-lhrctlle
coidilion, lho manilold vacuum is nsuliiclenl
lo daw lho bowby llow lhouqh lh€ valve,
and is llow goes
lhrcugh lh6 hos€ conn€ciion in lhe reveBe
dnedion.
On v6h cl€s wilh an.rc.ssiv6 y
hiqh b ow.by sone ot lhe ltow
willgolhbugh th€ hose
connection lo fie an inlel lubes und6r
Inspection
P.C,V, (PciriE
crdkes€ Ventitatbn)
Wilh enqne running al idl€, €mov€ P.C.V. valv€ lrom
ro.ker
cover il lh€ vav€ is wo*inq pope
y,
a hlssinq noise wilt be
head as aif passes
lhrough it and a sl@ngvacuum shou d be
rell imnediately
when a fngef is placed
ov€r valve inl6l.
Description
EF & EC-341

INJECTION
PUMP
Removal
1. Dlsconneci banery
O ca
ble, luel
cut solenoid valve
6nnec-
ror and ac@ledlor wire.
2. B6mov€ €ngin. und$ @v€..
3, Set No. I pislon
al T,D.C. on its @6p@ssion sloke.
T'o,c: whne pahted
malt
4. Benove rLelhoses
(srpply,
relu a
and spil) cnd iajeclion
Femove.onfeclors a.d tiEtion clamps irom lhe cover.
Refrove inject o. pudp
liding bet coverc.
B€mov6 inj€.ion pump
liming b€ t.
Femove inj€cllon pudp
sprocket
5,
9. Femove injectlon pumpassedbly.
Feter to EM secto..
EF & EC-349

ARAKE
HYDRAULIC
LINE
N Removal
. B€
ergtul not to 3plr.h
bhke illd on p6ihl6d
E|lB; it nay
eus p.int
d.m.ge. ll b6ke nuld i..pb8h€d on p.lnied
.|@, msn n My wt[| w€t6r imm€di.r€ly.
. All
hos mu.r b6 frE lrcm
exe$l@ b6nding, rwtudng
1. Conngcl s vinyl rube
b anbreedervalve.
2. DBn bBk.lllid 1106
each ar b eeder valvB by d€pr6ss-
3. Fehove llarc nul5€.! ng brake
tube io hos6, lh.n wirh-
4. Cover
openings lo prcvont
€nt€n.€ ol
din whenever dis
connecling hyd€llic in€.
Inspeclion
checkbEke li.es (iubes
and hosos) ror cacks,
detedodtion or
other dafrage. Fepla€ enydamagad pans.
Installation
. Fafill
wi'l |Fwb6ke
iuld DO-I4".
. N.@
Bue dhlmd b6ke fiuid.
1. Tighten
alliare nuls and @nnsciing bohs.
pl: I -
11 N.n (03 -
r.1 kg-m,
65 -
3.7 nnb)
F,: 17
.
m N.m (1.7 .
2.0 ks{, t 2 -
ra ftb)
2 Beril unli new b6le ll-id 6re5
oul ol each air ol€ed€r
3. B e6d ar. R6ler
lo 'Bleeding
Prooedu€ i. 'AlR
BLEED.
ING".