1993 NISSAN SERENA Service Repair Manual

MAJOF
OVERHAUL
Shitl Control ComDonents
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MT.l2

DISASSEIi,IBLY
Cas€ Comlonents
BeioE di@rdlnt itanml&lon, d6h rnn.mh6bn oll,
1. Bemove @d eriension by liqhiylapping it,
Bemo@ lront @ver,
e6sket,
b6anng. and snap n9 ol msin shin
ot counl€Ghatt lroni
2.
3. Sea€l€ lEnsmission .as€ fbm adaol6. Dlal6.
4. Remo@ tont 6veroils6al.
a6 c&fi, not to &m.g€ lrBt M trrding
arfe
Shllt Comrol Comoonents
1. S.l up Tool
on adapl€r plate.
2. Femove cheok ballpllgs, checkspnnss, and ch€ck bans.
,@o
MT-l3

DISASSEMBLY
Shift Corftol Components (Cont'd)
3. D ve oul Eiaininq pins.
Then dive olt lolk rods and
rcmovo inlB ock balls.
Geat Componenls
1. Belore disassembly, measu€
each gear
6nd plsy.
. lt€.d play
is norwilhin
the specitiod timil, dis.s@nbte
and
. Roplace any panwhl.h
is wom o.dsmag.d.
5. M4h
2nd End Ev66e geai,
the. daw out counter
lont
beadng wilh su labl€ puller.
Bemov. snap nq
and then renove sub,A€ar bEcket,
sub-
gear spfng ano
.uo-gear.
D6w oul
@unle' drve gear
w[h main
drve qear
assem,
Wh.n dEoing out min dd€ ger
@nbty, b. eBtut nor
to d@p
Falot bearlng
6nd b.ulk dng.
F€mov€ snap ing and d6w out3d
& 4th
synchrcniz€rand
Oisassemble parls
al r6af ol
adaFter otale as
tottow.:
Felease staking on counteEhatl
nut and mainshalt
nui and
Mal..hait nd: L3fi.h.nd
th@d
6.
i[T-l4

DISASSEMBLY
Gear Components (Contd)
b. Pull olt O.D. @unter g€ar
and b6. ng wilh suitabl€ puller.
c. D€w oul reverce counl€r g€af
and spa€r.
d. Bemovo snap ings fbm €v€rs6 idler
shafi, and d€w oul
rev€Ee idlef
O€ar, lhru.l
washe6
and reverce idler gear
€, Remove
snap rlngandpul out mainshafi rcar €nd bea ng,
men renove snap nna.
l. R€mov€ mainshai nut
q. R€mov6 6peedomeler
drive gear
and stee ball.
h. Ramove
lhrusl washer.
Penove OO Tcn gec'.
needle o€a.ng.nd blull nnq
(o.D.).
i. R6mov€
couplins
6leeve (O.D.
& reverce), shiftin6€tu.nd
shinin9 insert
springs.
k. Femove @unl6r g€..
by iapping rear
e.d olcounl€rg€ar.
L Pr6ss outO.D. gear
bushi.g, O.D. & €v€6. synchrc.izer
h!b, baurk ng (reverse),
€ve€o main
sear, n6ede
ber
inq and bush
logethe.
7. B€mov€
th(sl washer, sle€l
B. @Etut not to to$ .i.€t b5tt.ba
l.lsrmain gearand
needte
Press oul 1st geaf
mainshaft bushing
togethef wilh 2.d
Th6n Emove 2nd gear
ieed e bs.r ng.
MT.l5

DISASSEIiIBLY
Gear Componenls (Conl'O
9, nomo€ mah dd@ g€ar
b€adngd lollds:
a, Flemo6 snap nO end Msh.r.
b, P€$ out frein ddvB gqr
be.ino.
irT-l6

INSPECIION
Shift Conlrol Componenls
. Check coniaci surtaB
and elidinq sufa@ ol loft bds tor
wear, $dtch€s, prcj€ction6
or other damag€.
Cr€r Components
GEAFS AND
SHAFTS
r Ch&l shsfb lor
cacks. wear or b€ndno.
. Chdh
a€aG lor
exess v6 w€af,
ch'ps oi cracks.
SYNCHFONIZEBS
. Chek splin€ ponion
oloupting st@ves, hubs and
9€6
. Check baurk ng. lor
c€cts of dBtomation.
. Chsck shifting
inserts tor w6a.
or detornaton.
. Ch€ck
i.sen sp ngs ior
detomation.
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s m6
g
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LI
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MT-l7

INSPECTION
Gear Componenrs (Cofl'd)
. Meau€ w6ar ol baulk
ings.
a. M€a€uB
deaE.@ between b6ulk nng
and gear.
ClaEn@ b.la€cn
baulk dng and
96r
ll lh6 d6aE.@
is smaller than lh6 w€ar
limit, repta@ bautk
Measuewearol2nd and srd ba!k ngs.
Pla@ baulk ings
in poshlon
on sy.chbnizer
cone.
Whil€ holding
baulk dngs against synch@nizer
oone as tat
as il willgo,
measu€ dimonsions 'A
and B .
c. It difrenson A or "B' is
smaller than ih€ wear r'ml,
MT.l8

INSPECTION
Gcqr Components (Conf
d)
BEARINGS
. MakB
3uB
b€an.gs roll
f.eely and arc n6€ lbm .oi*,
c€ck, pilli.g
or w@r,
MT-t9