1993 NISSAN SERENA Service Repair Manual

MASTER
CYLINDER
w
-{
Removal
BG e€tu| mt to
+1..h bE*€
tluid on p.inl€d
.8.; i mry
e@ p5tn
d6fiag€, F br*. nuH i. atl*h€d d
!.lnled a@3r
m8h h 'my snh wat
r lmmedlately.
L Connecta vinyltube b an bbeder valve.
2. Dain b6ke lluid trcm $ch an b 6€d€r valv6,
deprcssing
b6ke pedallo
6mpry lllid irom masr€r cylinder.
3. B6mov€ brak€ pip€
fl.e nuls
4. B€mov6 masler
.yl nder
mou.ling nu6.
5 Fenove ptoledor
o/ncslor cvl'nder a1o avoid
6cr6tch'nq
the surfa€ ol m.sl6r cylinder
duing remova.
Do nol dl3'ss4ble
m4.ler cylindei
NOTE:
h h b |Eegry lo chang6 lh. bEk nuid |€srcn,
em@ h
6 3tom In th6 illustration on rlE btl, whil€ houlng
lte sl3
h i.
not neceery
to Eplae lhe sls it rh.y aB in . good
Installation
. R.fll
wilh na
bake iuld DOT4,
. N*r es dnlned b6ke n!id.
1. Place fraster oylindef onlo brak€ boo6ler
and secure
molnting nuts liohrly.
2. Fil flare
nuts lo maslei cylinder.
3. Tighlen dounti.g nuls.
. _. P): 21.29N8(2.1.3,0*gFm,
155-21in-|b)
p):9- rl Nm (03-
1,1 kg{, 65.3,7 fib)
r Bleedar Beler
ro Beedns Prcced-r€ rn AlR B-TFO-
ING".
BR-l5

BRAKE
BOOSTEB
r*w On-vehicle
Service
OPEFATING CHECK
. oep@s brake pedal
seveal times wilh engine ofi, and
check that th€G is no change in p6dalslrck€.
. o6p€.6
b6k. p.da|lhen
sl,an engine.It pedalgoes
down
slighlly, opediion is nomal.
AIRTIGHT CHECK
. Siart enqine, and stop il after one of two minut6s. D.press
bEke p6dal
s€voEl lim6s slowly. It pedal
goes
lunher
down lh. lircl I m€ and gEdlally
nses atler s@nd or third
lim€. boosl.r i5 ainighl.
. O6p€65
bEke pedal
whie engine is runninq, and srop
enqine wilh pedaldepressed.lllherc
s no chang€ in pedal
sloke alter holding p€da
down lO sond6,
brake b@ster
Removal
. Bs
cetu|nd lo sdBh
bFlG nud on
t lnled
aE6; hn.y
d4 Finr d.m.ge,
lf bhke nu|d b 3preh.d d p.ilned
'w, wah ft away whh wat6r ififi€diai€ly.
. Be
6r.tu1 noi to d.fom or
bend bElc pbe.r
dudng
aa
f-4
;;'{Lt;::t":'itf
,11,1,','{
8R.16

BRAKE
SOOSTEB
Inspection
OUTPUT FOD LENGTH CHECK
1. Appy vacuum ol -66.7
kPa (-567
19.69 inHg)to brak€ booslor with a
and oheok output od efgth A'.
Sp*ified l€nglh "A':223 r 0,15
2. ch..k
oulput rcd enqrh '1"
when b6ke booster d@snt
Spelfi.d lsqlh L :
FHD modeh. 136 mm 1s.35 in)
LHD nod€ls: 126 nn {4,96lnl
NOTE:
In brake bo6r.r wth att chmnl rype, lhe me@e
l. m@
{r€d lrom outllde sharp ot atrachrent
lnslallalion
. 84 6Etul not to d,eiom or bend bhke plp6,
durlnq lrclal-
. Fi.ds
cl6vl.
dn il
dsnEgEd,
. Rcnll
wnn tw
bnt. nukl
"DOl4'.
. llow
€u$ d6ln€d bEk f!ld,
. T.16
eE nol ro ddEg5 b:k€ [email protected] munlinq
bol
ihEd ytEn
iBr.lling. rr€
b !E 4ute angle ol
lMi.ll.don, tt€ inrEd3 6n b. damagEd on rh. reral sur
rcundl.g thc d6h p.EI
hor6,
L Betoroliitirg boosler, l€mpoEdy adjusl cl€vis lo dimen'
sion sFown (Do€s
nor.pply ro v6hicle6lit€d ulh ABS)
2. Fil
boost€r. lhen 6€cu€ molnling nuls (bEke
peda
3,
5. btackal
to brake boosier) lighily.
Connecl brake pedal
and booster input rod with clevis pin.
lol: t3 -
16 N.n {i,3 -
1.6 km. 9 .
12 lt lb)
rnsislr m'ds.vr;d Rdd i.
"rnd'rdioni n
"MAsrFF
6. Bleed air. Feiq lo 'Aleedinq
Procedue" in AIR BLEED-
ING'.
BR-l7

VACUUM
HOSE
Bemoval and lnslallation
t.** wlM
in.t llhg v*uum hE., p.y
.lLnllon to th. iollwl.g
. Do
nor apdy rry oll or lubi@nb to v&uum rB &d
. lEn
v€dun tub. into veuum
ho* 6 3hom,
Inapecdon
HOSES AND CONNECTOFS
Ch€ck vacuum lin€s, conneciions
and check vave lor
sinighh€ss, impbper
anachmenl. chaling and deloioElion.
CHECK VALVE
check vaclum wilh 5 vacuum pump.
8R.18

FROITT
D|sC BRAKE
GD2SVA and
LD28VB)
E EI E o
@
@ "
'/rE c@'s*'
/ -92's,
\a / l
""-"""^ sd*tl.-f,l....
tr@
v9 EG)
(9t-
,@
",",",*- 11
ll
*rA
el1a.biJ.I.z,D.'' ./
/:b
c.@we,as F
@@
a 6
EG) E
E t 9,
c);
@,
@,
8R.19

FROiTT
D|sC BRAKE (BIr28vA
and LD2SV9)
Pad Replacement
1. Remove lower
Pin bolt
2. Swing cyinder body lpward. Then @move pad
€iain€b,
and inn€r and oul€r shims.
. Wh@
cyllnd€r body
b Mnq uA do not d€p|g bdt
p.dd b.ca@ pl.lon
wlll pop
ouf,
. B.
@F .or io dd.gE du.t @Er d g€t
ol! on reto.
Removal
. Remove
iorque member
lixing
boll. a.d union boll.
Disas9embly
Push od pislon
wilh du6l @v€r wilh @npre*ed an.
For LD23VB (2.p'sron
rype). u:e
a wooden block e rhal lhe
prslons com6 oul €v€.|y.
l
r,o.*
u t)ffi frl n
"oU
\J
BB-M

FROI{T
DISC BRAKE BY28VA
and LD28VB
ffi
iffi*
t Inspection
INSPECNON OF BFAKE
DRAG FOBCE
(l) swins cylinder body lpwad
(2) Mak6 s!rc
lhatwheelbeaing is adiusled pbpery.
Relerto
(3) M.asu€ olalins lorce (F,).
(4) Insial €lip6r wi$ pads
to the odginarposilion.
(5) Oepress bEk€ pedal
lor 5 semnds-
(6) Reease brake pedal,
rctale dis
btor 10 rcvoulions.
(7) M€as!rc @rauns ior@
{Fr.
(3) CaLculare b€k6
dag loroe by subiacting F1
lbm Fz.
MdiBUm bEl€ ddg lo@ (F2 -
Fl):
103,0 N (10.5
kg,232 lb)
I ir i. not wihin sDecmcadff, checl plB
rnd
. ilak
5uE ih.r vh6l b.adng E adj$iad
. Dl$
Fo& .nd
dl& Elor mEr
h. dn.d.
DISC PAO
Check ds. pad
ror w6ar or damas€.
Ilad wr llmn (A):
20 nn (0.079
In)
/..'d, FOTOR
standad lhlctns:
BD23VA 22O nn (0,A6
in)
LmBVB 2ao mm (1.02In)
Bo23VA 20.0 nm (0.78
In)
LD4VB 240 nn (0.94
In)
BR'21

FRONT
DISC BRAKE
{BD28VA and U'28VBI
Ass€mbly 1. Insen pisbon
s€l inlo groovB
on cylindar
body.
2. Insiall pislon
inio cylind6r body.
3. Insiallpislon boot and s€cur€ pbp€ny.
Instrallqlion
. R€fll
whh 'w
bfake iltd ooT4".
. tlMr tus dElFd brake
iuld.
1. l..tall
caliper assembly.
2. Insiall bEke
hose to €tip€r s&!r€ y.
3. Bleed
ar Fele.
D "Booding Pmc€dure" ir
"AtB BLEEo-
ING",
lnspeclion
CYUNDER BODY
. Chock insid€ sudace
ot cyind6rtorso6.
rust, wear, dam
ag6 or pr€s.e
ol foeign malo als. ll
any ol the abov6
@ndlions ar€ obseryed,
rep ace cylind€r
body,
. Mino d.m6q6lron rJsl
o' lo'eign n.t6 616 may
be etrm
ilal€d by polhhrng
rhe sulace
sft a nn€ €m€ry paper
Feplae cylrndr body it n@ssary.
caunoN:
t !. b.ake nuld ro chan tLwr
@ mlE al on.
PISTON
Ch6ck pision
lor score, rusl, w6ar, damage
or p€ssnce
oi loF
eign male 6ls. Beplace
il any of lh€
above @.dtiions a.€
Pl.ton .lldlng &rfe l. pLt
d. Do not po[.h
sirh m.ry paps
.@ |l
ru3t or lo€ign mlldlab
.E .tEk to .tidtng
srt €.
PIN, PIN BOLT
AND PIN BOOT
Ch6ck lof
@ar, cracks or olh€f
danage. Fepta@ it 6ny ol
the
abov€ @ndilions
are obse@d.
\\
,1 r"
BF.N,