1997 ACURA NSX transmission

Illustrated Index

Transmission HousingProCarManuals.com

Removal
Left Sid e Cove r
NOTE:
• Clea n al l part s thoroughl y i n solven t o r carbureto r cleaner , an d dr y wit h compresse d air .
• Blo w ou t al l passages .
• Cu t th e loc k tab s o f eac h shaf t locknu t usin g a chisel , the n remov e th e locknut s an d conica l sprin g washer s fro m eac h
shaft .
• Countershaf t locknu t ha s left-han d threads .
1 . Remov e th e vehicl e spee d senso r (VSS ) cover , the n reinstal l thre e bolt s aroun d th e driveshaf t oi l seal .
CAUTION : D o no t damag e th e driveshaf t oi l sea l lip .
2. Sli p th e specia l too l ont o th e mainshaft , an d engag e th e parkin g brak e paw l wit h th e parkin g gear .
3. Remov e th e transmissio n lef t sid e cove r i n th e followin g numbere d sequence .
NOTE: Remov e th e specia l too l fro m th e mainshaf t afte r removin g th e locknuts .
MAINSHAF T HOLDE R07924-PJ4010 A
NOTE: Cu t th e loc k tab s o f eac h shaf t locknu t
usin g a chisel , the n remov e th e locknut s an d
conica l sprin g washers .
CAUTION : Kee p al l o f th e chisele d particle s
ou t o f th e transmission .
CAUTION: Protec t th e li p o f th e
driveshaf t oi l sea l b y reinstallin g thre e
bolts , afte r removin g th e spee d senso r
cover.
ProCarManuals.com

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 .
ProCarManuals.com

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

Transmission

Installation

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

2. Check that the 14 mm and 10 mm dowel pins are installed in the torque converter housing.

3. Install the three transmission housing mounting bolts.

4. Install the three rear transmission mounting bolts.

5. Loosen the front engine mounting bolt, and install the two front engine mounting bolts to transmission side. Tighten

the three bolts to the specified torque.

6. Remove the transmission jack.

7. Attach the torque converter to the drive plate with eight bolts to 12 N-m (1.2 kgf-m, 8.7 Ibf-ft). Rotate the crankshaft as

necessary to tighten bolts to 1/2 of the specified torque, then final torque in a crisscross pattern. Check for free rota-

tion after tightening the last bolt.

8. Install the torque converter cover.

9. Install the shift cable, shift cable holder, and shift cable cover.

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

Installation (cont'd)
Transmission

11. Install a new set ring on the end of the left driveshaft and intermediate shaft. Apply a light film of grease around the

set ring grooves, then center the new set ring on the shafts. The grease keeps the set ring centered, making shaft

installation easier.

12. Install the left driveshaft.

13. Install the lower control arm to the side beam.

CAUTION: Line up the reference marks on the adjusting bolt, adjusting cam, and lower control arm.

14. Install the damper fork bolt.

15. Install the toe control arm to the side beam.

CAUTION: Make sure that the reference marks on the toe control arm are aligned.

16. Install the wheel sensor wire clamp and parking brake cable holder.

17. Install the intermediate shaft, and tighten the intermediate shaft mounting bolts to the intermediate shaft support

base.

18. Install the intermediate shaft heat shield cover.ProCarManuals.com

Reassembly

NOTE:

• If the limited slip differential clutch set was replaced,

the 65 mm shim (differential housing cover side) and

1 1 2 mm shim (differential housing cover side) must

be adjusted.

• Reassemble the parts in the same order and direction

they were before disassembly.

• Lubricate the clutch disc surface with transmission oil.

1. Reassemble the parts as shown below. Position the

65 mm shim with the thickness stamp mark facing

up.

CLUTCH

PLATES
102 mm WASHER

CLUTCH

DISCS

112
mm SHIM

65 mm SHIM

THRUST NEEDLE

BEARING

WASHER

STOP PLATE

DIFFERENTIAL

HOUSINGProCarManuals.com

Oil Seal

Removal

1. Remove the differential assembly.

2. Remove the oil seal from the transmission housing.

OIL SEAL

Replace.

TRANSMISSION HOUSING

3. Remove the oil seal from the clutch housing.

CLUTCH HOUSING
OIL SEAL

Replace.ProCarManuals.com