1997 ACURA NSX Service Repair Manual

Countershaft Bearin g Replacemen t
1. Remov e th e countershaf t bearin g usin g th e specia l
tool s a s shown .
ADJUSTABL E
BEARIN G
PULLER ,
25 - 4 0 m m07736-A01000 B o r
07736-A01000 A
Secondary Shaf t Bearin g
Replacemen t
1. Remov e th e secondar y shaf t bearin g usin g th e spe -
cia l tool s a s shown .
ADJUSTABL E
BEARIN G
PULLER ,
25 - 4 0 m m07736-A01000 B o r
07736-A01000 A
2. Replac e th e AT F guid e plate .
3 . Driv e th e ne w bearin g int o th e housin g usin g th e
specia l tool s a s shown .
DRIVER07749-001000 0
2. Replac e th e AT F guid e plate .
3 . Driv e th e ne w bearin g int o th e housin g usin g th e
specia l tool s a s shown .
DRIVER07749-001000 0
ATTACHMENT ,72 x 75 m m07746-001060 0
ATTACHMENT ,62 x 68 m m07746-001050 0
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Replacement
Transmission Housin g Bearing s
1. T o remov e th e mainshaft , countershaf t an d secondar y
shaf t bearing s fro m th e transmissio n housing , expan d
eac h sna p rin g wit h th e sna p rin g pliers , the n pus h th e
bearin g out .
NOTE : D o no t remov e th e sna p ring s unles s it' s
necessar y t o clea n th e groove s i n th e housing . 2
. Expan d eac h sna p rin g wit h th e sna p rin g pliers , inser t
th e ne w bearin g part-wa y int o it , the n releas e th e pli -
ers . Pus h th e bearin g dow n int o th e transmissio n unti l
th e rin g snap s i n plac e aroun d it .
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Reverse Idler Gear

Installation

1. Install the reverse idler gear.

3. Install the reverse idler shaft holder into the transmis-

sion housing, then tighten the bolts.

2. Set the spring in the reverse idler shaft. Push the

spring in with the steel ball, then install the needle

bearing.

NOTE: The steel ball is under spring pressure. Take

care not to let it pop out.ProCarManuals.com

Replacement/Adjustment
Manual Valv e Deten t Sprin gParkin
g Brak e Stoppe r
Inspection/Adjustmen t
NOTE: Selec t th e appropriat e manua l valv e deten t
sprin g whe n thes e part s ar e replaced :
• Manua l Valv e
• Manua l Valv e Deten t Sprin g
• Manua l Valv e Leve r o f Contro l Shaf t
1 . Instal l th e mai n valv e body , includin g th e AT F
pum p gears , ont o th e torqu e converte r housing ,
an d tighte n th e mai n valv e bod y bolt s t o 1 2 N- m
(1. 2 kgf-m , 8. 7 Ibf-ft) .
Se e pag e 14-161 .
2 . Instal l th e contro l shaft .
3 . Instal l th e manua l valv e deten t sprin g o n th e mai n
valve bod y an d tighte n th e sprin g bol t t o 1 4 N- m
(1.4 kgf-m , 1 0 Ibf-ft) .
4. Se t th e manua l valv e t o th e position .
5 . Measur e th e distanc e betwee n th e mai n valv e bod y
an d manua l valv e a s shown .
DISTANCE : 28. 0 - 29. 0 m m (1.10 2 - 1.14 2 in )
1. Se t th e parkin g brak e leve r i n th e position .
2 . Measur e th e distanc e betwee n th e fac e o f th e park -
in g paw l shaf t an d fac e o f th e parkin g shif t ar m rolle r
pi n a s shown .
DISTANCE : 52.1-53. 1 m m (2.051-2.09 1 in )
6 . I f th e measuremen t i s ou t o f tolerance , selec t th e
appropriat e manua l valv e deten t sprin g usin g th e
tabl e below , the n instal l i t an d rechec k it . 3
. I f th e measuremen t i s ou t o f tolerance , selec t an d
instal l th e appropriat e parkin g brak e stoppe r fro m
th e tabl e below .
4 . Afte r replacin g th e parkin g brak e stopper , mak e
sur e th e distanc e i s withi n tolerance .
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Reassembly
Transmissio n
NOTE: Coa t al l part s wit h ATF .
1. Reassembl e th e valv e bodie s in th e followin g numbere d sequence .
CAUTION: T o preven t strippin g th e threads , pres s dow n o n th e accumulato r cove r whil e installin g th e bolts .
NOTE : Instal l th e AT F pum p drive n gea r wit h
it s chamfere d sid e facin g down .
NOTE : Mak e sur e th e pum p driv e gea r
rotate s smoothl y i n th e norma l operatin gdirection an d th e pum p shaf t move ssmoothl y i n th e axia l an d norma l operatin gdirections .
CAUTION : I f th e pum p gea r an d pum p
shaf t d o no t mov e freely , loose n th e valv e
bod y bolts , realig n th e shaft , an d the n
retighte n t o th e specifie d torque . Failur e t o
alig n th e pum p shaf t correctl y wil l resul t i n
seize d pum p gea r o r pum p shaft .
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Reassembly (cont'd )
Transmissio n
2. Assembl e th e transmissio n housin g in th e followin g numbere d sequence .
NOTE: Se e pag e 14-15 9 whe n installin g th e revers e idle r gear .NOTE : Instal l th e thre e shaft s
together .
NOTE : Alig n th e contro l
shaf t sprin g pi n wit h th e
groov e i n th e transmissio n
housing .
NOTE: Torqu e th e bolt s t o 5 4 N- m
(5.5 kgf-m , 4 0 Ibf-ft ) i n th e numbere d
sequence i n tw o o r mor e
steps.
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3. Assembl e th e transmissio n i n th e followin g
numbere d sequence .
NOTE : Befor e installin g th e O-rings , wra p th e
shaf t spline s with tape t o preven t damag e t o th e O -
rings .4. Se t th e parkin g brak e leve r i n th e position , the n
verif y tha t th e parkin g brak e paw l engage s th e
parkin g gear .
5 . I f th e paw l doe s no t engag e fully , chec k th e parkin g
brak e paw l stoppe r clearanc e a s describe d o n pag e
14-160 .
6. Tighte n th e loc k bolt , the n ben d ove r th e loc k tab .
7. Instal l th e specia l too l a s shown , the n shif t t o
position .
MAINSHAF T HOLDE R07924-PJ4010 A
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8. Install a new conical spring washer and a new lock-

nut on each shaft.

CAUTION: Install the conical spring washers in the

direction shown.
Reassembly (cont'd)
Transmission

10. Stake each locknut into its shaft using a 3.5 mm

punch.

11. Install the feed pipes and the ball bearing in the left

side cover, aligning the lugs of the 1st and 1st-hold

clutch feed pipes with the grooves in the cover.

12. Install the snap ring.
9. Tighten the locknuts to the specified torque.

TORQUE: 137 N-m (14.0 kgf-m, 101 Ibf-ft)

NOTE: The countershaft locknut has left-hand

threads.ProCarManuals.com