bolt pattern ACURA NSX 1997 Service Repair Manual

Service Precautions

Handling of Special Nuts and Bolts

Handling of Tires

• The tires on NSX & NSX-T should not be rotated. The

front wheels are 16" in, diameter and the rear wheels

are 17" in, so they cannot be rotated front-to-rear.

The original-equipment tires on NSX & NSX-T have a

unidirectional tread pattern, so they cannot be rotat-

ed side-to-side.

• The folding spare tire cannot be repaired or removed

from the rim.

Engine Steam-cleaning

(NSX-T only)

When steam-cleaning the engine compartment, keep the

roof holder switch dry. If the roof holder switch gets wet

accidentally, dry it thoroughly with compressed air.
Because many sections on this vehicle are constructed

with aluminum alloys, use only the special "Dacro" type

nuts and bolts recommended by Acura.

NOTE:

• Dacro finish can be identified by gray plating.

• Some Dacro finish bolts have a green coating on the

thread section of the bolt for easier application. This

type of bolt is called a "Torquer" bolt.

• Use of other types of nuts and bolts may cause elec-

trolysis and corrosion, which in turn could cause the

bolt to loosen.

Gray plating: "Dacro" type

Gray plating + Green coating on the threads:

"Torquer" type

1. When replacing nuts and bolts, use only the same

type.

2. Tighten the nuts and bolts with a torque wrench to

the specifications provided in this manual.

3. Clean all thread ridges with a non-wire-type bristle

brush. Foreign matter in the threads may cause the

bolt to loosen.

4. Sections on this vehicle requiring the use of Dacro nuts

and bolts will be indicated by a in this manual.ProCarManuals.com

29. Tighten bolts and nuts finger tight at six points as

shown below.

30. Starting with nut torque all bolts and nuts, in a

clockwise pattern in three steps.

NOTE: Excessive tightening can cause distortion of

oil pan gasket and oil leakage.

Torque: 14 N-m (1.4 kgf-m, 10 Ibf-ft)ProCarManuals.com

Pressure Plate , Clutc h Dis c
Remova l
1. Remov e th e transmissio n (se e sectio n 13 ).
2 . Instal l th e specia l tools .
HANDL E07936-371010 0
CLUTCH ALIGNMEN T SHAF T07MAF-PR8010 0
RING GEA R HOLDE R07LAB-PV0010 0 or0792 4-PD2000 3
3. T o preven t warping , unscre w th e pressur e plat e
mountin g bolt s tw o turn s a t a tim e i n a crisscros s
pattern , the n remov e th e pressur e plate .
4 . Remov e th e releas e bearin g fro m th e pressur e
plate.
5. Remov e th e clutc h dis c an d specia l tools .
HANDL E07936-371010 0
CLUTCH ALIGNMEN T SHAF T07MAF-PR8010 0
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Removal
Valve Bod y
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 .
• Accumulato r cover s ar e sprin g loaded ; t o preven t strippin g th e thread s i n th e torqu e converte r housing , pres s dow n o n
th e accumulato r cover s whil e unscrewin g th e bolt s i n a crisscros s pattern .
1 . Remov e th e valv e bod y i n th e followin g numbere d sequence .
CAUTION : D o no t us e a magne t t o remov e th e chec k balls ; i t ma y magnetiz e th e balls .
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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

NOTE: Th e clutc h disc s an d clutc h plate s shoul d b e
replace d a s a set .
1. Remov e th e clutc h disc s an d clutc h plate s (se e
pag e 15-20 ).
2 . Soa k th e clutc h disc s fo r fiv e minute s i n transmis -
sio n oil .
3 . Instal l th e clutc h discs , clutc h plates , an d a stan -
dar d shim .
NOTE : Positio n th e 1 1 2 m m thrus t shi m wit h th e
thicknes s siz e mar k facin g awa y fro m th e clutc h
discs.
112 m m THRUS T SHI M
112 m m THRUS T SHI M
FINA L
DRIVE NGEAR
4. Instal l th e differentia l housing . Tighte n th e bolt s
evenl y in severa l steps , the n torqu e the m in a criss -
cros s pattern .
Torque: 3 9 N- m (4. 0 kgf-m , 2 9 Ibf-ft )
5. Mak e sur e th e prese t torqu e i s withi n th e standar d
(se e pag e 15-18 ).
6 . I f prese t torqu e i s beyon d th e standard , replac e th e
11 2 m m thrus t shi m a s necessary .
Clutch Disc , Clutc h Plat e
Replacemen t
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