1997 ACURA NSX transmission

Mainshaft Thrust Shim

Adjustment

1. Remove the thrust shim and oil guide plate from the

transmission housing.

2. Install the mainshaft in the transmission housing.

Do not install the clutch housing side ball bearing.

3. Measure between the end of the

transmission housing and mainshaft. Use a straight

edge and feeler gauge, and measure at three loca-

tions and average the readings.
5. Select the proper thrust shim on the basis of the

following calculations. Do not use more than two

thrust shims.

4. Set the mainshaft ball bearing in the clutch hous-

ing, and measure distance between the sur-

faces of the clutch housing and the bearing in-

ner race. Use a straight edge and feeler gauge, and

measure at three locations and average the read-

ings. Do not install the spring washer.ProCarManuals.com

NOTE: Clea n al l th e part s thoroughl y befor e installation .
6 . Instal l th e oi l guid e plat e an d thrus t shi m int o th e
transmissio n housing .
DRIVER, 4 0 m m I.D .07746 -003010 0
7. Instal l th e bal l bearin g ont o th e mainshaf t usin g th e
specia l tools .
ATTACHMENT , 3 5 m m I.D .
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8. Instal l th e 7 5 m m sprin g washe r an d mainshaf t
assembl y int o th e clutc h housing .
9. Instal l th e transmissio n housing .
Torque: 4 4 N- m (4. 5 kgf-m , 3 3 Ibf-ft )
10. Chec k th e thrus t clearanc e in th e manne r describe d
below . Carr y ou t th e measuremen t a t norma l roo m
temperature .
a . Slid e th e mainshaf t bas e ove r th e mainshaft ,
b . Attac h th e mainshaf t holde r t o th e mainshaf t a s
follows : f
. Tur n th e mainshaf t holde r bol t clockwise ; sto p
turnin g whe n th e dia l gaug e ha s reache d it s
maximu m movement . Th e readin g o n th e dia l
gaug e is th e amoun t o f mainshaf t en d play .
CAUTION : Turnin g th e shaf t holde r bol t mor e
the n 6 0 degree s afte r th e needl e o f th e dia l
gaug e stop s movin g ma y damag e th e transmis -sion.
g. I f th e readin g i s withi n th e standard , th e
clearanc e is correct .
I f th e readin g i s no t withi n th e standard , rechec k
th e shi m thickness .
Standard : 0.1 4 - 0.2 1 m m (0.00 6 - 0.00 8 in )
•
Back-ou t th e mainshaf t holde r bol t an d
loose n th e tw o he x bolts .
• Fi t th e holde r ove r th e mainshaf t s o it s li p i s
toward s th e transmission .
• Alig n th e mainshaf t holder' s li p aroun d th e
groov e a t th e insid e o f th e mainshaf t splines ,
the n tighte n th e he x bolts .
MAINSHAF T BAS E07GA J-PG2013 0
MAINSHAF THOLDER07GAJ-PG2011 0
c. Sea t th e mainshaf t ful l b y tappin g it s en d
wit h a plasti c hammer ,
d. Threa d th e mainshaf t holde r bol t i n unti l i t
jus t contact s th e wid e surfac e o f th e mainshaf t
base.
e. Zer o a dia l gaug e o n th e en d o f th e mainshaft .
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Transmission

Reassembly

1. Install the oil seal, shift arm, and shift lever in the

transmission housing.
3. Install the oil seal, select arm, and select lever in the

clutch housing.

2. Install the shift detent spring and spring set plate.

4. Install the differential assembly into the clutch

housing.ProCarManuals.com

Transmission

Reassembly (cont'd)

9. Install the reverse shift arm.
11. Install the dowel pins on the clutch housing.

12. Place the transmission housing over the clutch

housing, being careful to line up the shafts.

10. Apply liquid gasket to the surface of the transmis-

sion housing mating with the clutch housing as

shown, and note those items:

Use liquid gasket (P/N 08718 - 0001).

Remove any dirt or oil from the sealing surface.

Seal the entire circumference of the bolt holes to

prevent oil leakage.

If 20 minutes have passed after applying liquid

gasket, reapply it and assemble the housings.

After assembly, wait at least 30 minutes before

refilling with oil.
a. Place the shift lever as a shown.ProCarManuals.com

13. Lower the transmission housing with snap ring

pliers, and set the snap ring in the groove of the

countershaft bearing.
b. Lower the transmission housing, then place the

shift arm in the groove of the shift piece by turn-

ing the shift lever.

c. Check the operation of the shift lever.

14. Check that the snap ring is securely seated in the

groove of the countershaft bearing.ProCarManuals.com

Transmission Assembly

Installation

MOTE: Use only Super High Temp Urea Grease (P/N 08798 - 9002).

1. Place the transmission on the transmission jack, and raise it to the engine level.

Check that the two dowel pins are installed in the clutch housing.

2. Set the release fork to the clutch housing.

3. Install the two transmission housing mounting bolts and engine stiffener.

4. Install the three rear transmission mounting bolts.

5. Loosen the front engine mounting bolt, then install the two front engine

mounting bolts to the transmission side.

6. Remove the transmission jack.

7. Install the clutch housing cover.

8. Install the release fork in the release hanger, then install the slave cylinder.

9. Connect the shift cable and select cable. Take care not to bend the cables.

10. Install the upper cover, change wire bracket and lower cover.

11. Install the upper control arm mounting bolt.ProCarManuals.com

Transmission Assembl y
Installatio n (cont'd )
12. Instal l a ne w se t rin g o n th e en d o f th e lef t driveshaf t an d intermediat e shaft .
13 . Instal l th e lef t driveshaf t (se e sectio n 16 ).
14 . Instal l th e lowe r contro l ar m to th e sid e bea m (se e sectio n 18 ). Alig n th e referenc e mark s o n th e adjustin g bolt , adjust -
in g ca m an d lowe r contro l arm .
15 . Instal l th e dampe r for k bol t (se e sectio n 18 ).
16 . Instal l th e to e contro l ar m to th e sid e bea m (se e sectio n 18 ). Mak e sur e tha t th e arro w mark s o n th e to e contro l ar m
are aligned .
17. Instal l th e whee l senso r wir e clam p an d parkin g brak e cabl e holder .
18 . Instal l th e intermediat e shaft , an d tighte n th e intermediat e shaf t mountin g bolt s t o th e intermediat e shaf t suppor t
base.
19. Instal l th e intermediat e shaf t hea t cover .
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Transmission Assembl y
Installatio n (cont'd )
27. Instal l th e transmissio n moun t an d tw o transmissio n
housin g mountin g bolts .
28 . Instal l th e starte r motor , an d connec t th e starte r
moto r cables . Mak e sur e tha t th e crimpe d sid e o f
th e rin g terminal s facin g ou t (se e sectio n 23 ).
29 . Instal l th e transmissio n groun d cabl e an d jumpe r con -
nector , an d connec t th e back-u p ligh t switch , ne -
utra l positio n switch , differentia l spee d sensor , revers e
lockou t solenoid , an d vehicl e spee d senso r (VSS ) con -
nector .
30 . Instal l th e contro l box , an d connec t th e contro l bo x
connectors .
31. Instal l th e ai r cleane r assembly .
32 . Instal l th e stru t bar .
33 . Refil l th e transmissio n wit h th e recommende d oi l
(se e pag e 13-3 ).
34 . Connec t th e batter y positiv e (+ ) an d negativ e (- )
cable s to th e battery .
35 . Inspec t th e rea r cambe r (se e sectio n 18 ).
36 . Chec k th e clutc h operation .
37 . Shif t th e transmission, and chec k fo r smoot h opera -
tion .
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