ACURA NSX 1991 Service Repair Manual

Inspection

: Thoroughly pack the inboard joint and

outboard joint with joint grease included in the new

joint boot set.
Grease Quantity:

NOTE: Mark the rollers and roller grooves during

disassembly to ensure proper positioning during

reassembly.

Spline

direction

INBOARD JOINT

Check splines for wear and damage.

Check inside bore for wear.

Inspect for cracks.

SET RING

Replace.
Pack cavity

with grease.

SET RING
ROLLER

Inspect for faulty movement and wear.
HOLDER

Section AA

INBOARD BOOT

Inspect for cracking,

splitting and wear.

OUTBOARD BOOT

Inspect for cracking,

splitting and wear.

OUTBOARD JOINT

Check splines for wear and damage.

Check inside bore for wear.

Inspect for cracks.

NOTE: Stagger the inboard joint spider and

outboard joint spider 60° apart. To ease

assembly, mark alignment marks on

driveshaft and spiders before disassembl-

ing them.
ROLLER

Inspect for faulty movement and wear.
DRIVESHAFT

SET RING
OUTBOARD

JOINT

SPIDER

CAP

SPRING

SET RING
CIRCLIP
OUTBOARD

JOINT

SPIDER
INBOARD JOINT

SPIDER
BOOT BAND

Replace.
BOOT BANDS

Replace.
BOOT BAND

Replace.
INBOARD

JOINT

SPIDER
SET RINGProCarManuals.com

Driveshafts
Reassembl y
Outboard join t sid e
NOTE : Wra p th e spline s wit h viny l tap e t o preven t
damag e t o th e boot .
1 . Instal l th e outboar d boo t t o th e driveshaft , the n
remov e th e viny l tape .
OUTBOAR D BOO T
VINY L TAP E
2. Instal l th e se t rin g int o th e driveshaf t groove .
3 . Instal l th e spide r o n th e driveshaf t b y alignin g th e
mark s o n th e spide r an d en d o f th e driveshaft .
4 . Instal l th e se t rin g int o th e driveshaf t groove .
SET RIN G
Mar k
Mark
SPIDE R
SE T RIN G
5. Fi t th e roller s to th e spide r wit h thei r hig h shoulder s
facing outward .
CAUTION :
• Reinstal l th e roller s in thei r origina l position s o n
th e spider .
• Hol d th e driveshaf t assembl y pointe d u p t o pre -
ven t th e roller s fro m fallin g off .
SPIDE R
ROLLE RHigh shoulde r face stowar d outside .
6. Pac k th e join t wit h join t greas e include d in th e ne w
join t boo t set .
Greas e Quantity : 17 0 - 18 0 g (6.0-6. 3 oz)
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7. Install the spring and cap, then fit the outboard

joint onto the driveshaft.

OUTBOARD JOINT

Align the roller holders with the

inboard joint as shown

below.

Spline

direction

HOLDER

8. Fit the circlip into the outboard joint inner groove.

CIRCLIP
Inboard joint side

NOTE: Wrap the splines with vinyl tape to prevent

damage to the boot.

9. Install the inboard boot to the driveshaft, then

remove the vinyl tape.

INBOARD BOOT

VINYL TAPE

10. Install the set ring into the driveshaft groove.

11. Install the spider on the driveshaft by aligning the

marks on the spider and end of the driveshaft.

12. Install the set ring into the driveshaft groove.

SET RING

Mark

SET RING

Mark
SPIDER
SPRING

CAPProCarManuals.com

Driveshafts
Reassembl y
13. Fi t th e roller s t o th e spide r wit h thei r hig h shoulder s
facin g outward .
CAUTION :
• Reinstal l th e roller s i n thei r origina l position s o n
the spider .
• Hol d th e driveshaf t assembl y wit h th e roller s u p
to preven t the m fro m fallin g off .
SPIDE R
ROLLE RHigh shoulde r face stowar d outside .
14. Pac k th e join t wit h join t greas e include d in th e ne w
join t boo t set .
Greas e Quantity : 120-130 g (4.2-4. 6 oz)
1 5 . Fi t th e inboar d join t ont o th e driveshaft .
INBOARD JOIN T
Align th e rolle r holder s wit h th einboar d join t a s show nbelow.
HOLDE R
16. Adjus t th e lengt h o f th e driveshaft s t o th e figur e
below , the n adjus t th e boot s t o halfwa y betwee n
ful l compressio n an d extension .
NOTE : Th e end s o f th e boot s sea t i n th e groove s
o f th e driveshaf t an d joint .
Left Driveshaf tM/T: 501.0-506. 0 m m (19.72-19.9 2 in )A/T : 507.0-512. 0 m m (19.96-20.1 6 in )
Righ t Driveshaf tM/T an d A/T : 542.0-547. 0 m m (21.34-21.5 4 in )
Splin edirectio n
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17. Install new boot bands on the boots, then bend both

sets of locking tabs.

18. Lightly tap on the doubled-over portions to reduce

their height.

NOTE: Install the outboard joint in the knuckle

before installing the driveshaft into the differential

or intermediate shaft. Loosely install the spindle

nut this time.
19. Install the new set rings in the driveshaft groove

and intermediate shaft groove.

20. Apply a light film of grease around the set ring groove

on the inboard joint, then install a new set ring and

center it on the joint. The grease will keep the set

ring centered, making the installation of the joint

easier.

21. Install the inboard end of the driveshaft into dif-

ferential or intermediate shaft.

CAUTION:

• Always use a new set ring whenever the drive-

shaft is being installed.

• Make sure the left driveshaft locks in the dif-

ferential side gear groove, and the CV joint

subaxle bottoms in the differential.

• Insert the right driveshaft CV joint subaxle into

the intermediate shaft until the intermediate

shaft set ring locks in the groove in the right

driveshaft.

Apply light film of

grease before installing.

INBOARD JOINT

SET RING

Replace.
SET RING GROOVE

Left Driveshaft

inboard end
Right Driveshaft

inboard end

(Intermediate shaft side)
LOCKING TABSProCarManuals.com

Intermediate Shaf t
Replacemen t
1. Drai n th e oi l fro m th e transmissio n (se e sectio n 1 3
M/ T o r sectio n 1 4 A/T) .
2 . Remov e th e righ t driveshaf t assembl y (se e pag e
16-3).
3 . Remov e th e hea t shield .
Corrosio n resistan t bolt/nu t
FLANG E BOL T
6 x 1. 0 m m10 N- m(1.0 kg-m , 7 Ib-ft )
HEA T SHIEL D
4. Th e bearin g suppor t assembl y i s a ligh t pres s fi t i n
th e suppor t base . T o remov e th e bearin g suppor t
assembly , remov e th e 8 x 1.2 5 m m flang e bolt s
with the suppor t bas e stil l attache d t o th e engin e
block. Ta p th e flange d sectio n of the bearin g sup -
port wit h a plasti c hamme r towar d th e whee l side ,
then remov e th e bearin g suppor t assembl y fro m
th e suppor t base .
CAUTION : T o preven t damag e t o th e differentia l
oi l seal , hol d th e intermediat e shaf t horizonta l unti l
i t i s clea r o f th e differential . NOTE
: Mar k th e suppor t bas e an d bearin g suppor t
durin g disassembl y t o ensur e prope r positionin g
durin g reassembly .
CAUTION : Th e bearin g suppor t an d suppor t bas e
ar e mad e o f aluminum . B e carefu l no t t o damag e
the m whe n servicing .
Corrosion resistan t bolt/nu t
SUPPOR T BAS E
MarkMar k
BEARIN G SUPPOR T
ASSEMBL Y
Lightly ta p th e suppor t bas e usin ga plasti c hammer .
5. Remov e th e suppor t bas e fro m th e engin e block .
FLANG E BOL T8 x 1.2 5 mm22 N- m(2.2 kg-m , 1 6 Ib-ft )
SUPPOR T BAS E
6. Instal l i n th e revers e orde r o f removal . Alig n th e
marks , an d instal l b y tappin g o n th e bearin g suppor t
assembl y shaf t end .
Shaftend
FLANG E BOL T8 x 1.2 5 mm22 N- m(2.2 kg-m . 1 6 Ib-ft )
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Disassembly
CAUTION: Th e bearin g suppor t an d suppor t bas e ar e
mad e o f aluminum . B e carefu l no t t o damag e the m
whe n servicing .
1 . Remov e th e intermediat e shaf t oute r sea l fro m th e
bearin g support .
OUTER SEA L
Replace .
2. Remov e th e externa l circli p an d interna l circlip .
INTERNA L CIRCLI P
EXTERNA L CIRCLI P
3. Pres s th e intermediat e shaf t ou t of the shaf t bear -
ing usin g th e specia l tool .
Press HU
B DIS/ASSEMBL YBASE07GA F - SD4070 0
INTERMEDIAT E
SHAF T
4. Remov e th e intermediat e shaf t inne r sea l fro m th e
bearin g support .
INNER SEA LReplace .
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Intermediate Shaf t
Disassembl y
5. Pres s th e intermediat e shaf t bearin g ou t o f th e
bearin g suppor t usin g th e specia l tools .
Press
BEARIN G
DRIVER07749 - 001000 0
ATTACHMENT ,52 x 5 5 m m07746 - 001040 0
HUB DIS/ASSEMBL YBASE07GA F - SD4070 0
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Index/Inspection
CAUTION:
• Th e bearin g suppor t an d suppor t bas e ar e mad e o f aluminum . B e carefu l no t t o damag e the m whe n servicing .
• Th e bearin g suppor t an d suppor t bas e ar e fitte d an d mus t b e replace d a s a n assembly .
Corrosion resistan t bolt/nu t
SUPPOR T BAS E
Check fo r damage .INNER SEA LReplace .
(3-4 g )Pac k th e interio r o f th einne r seal .
BEARIN G SUPPOR T
Chec k fo r damage . OUTE
R SEA L
Replace .
(5-6 g)Pack th e interio r o f th eoute r seal .
INTERMEDIAT E SHAF T RIN GChec k fo r damag e an d distortion .
BEARING SUPPOR T RIN GChec k fo r damag e an d distortion .
FLANGE BOL T8 x 1.2 5 mm22 N- m(2.2 kg-m , 1 6 Ib-ft ) EXTERNA
L CIRCLI P
INTERMEDIAT E SHAF T BEARIN G
Replace .
SET RIN G
Replace .
INTERNA
L
CIRCLI P
INTERMEDIAT
E SHAF T
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Intermediate Shaf t
Reassembl y
1. Pres s th e intermediat e shaf t bearin g int o th e bear -
in g suppor t usin g th e specia l tools .
Press
DRIVE R07749-0010000
OIL SEA L DRIVE R07GAD-PG40100
BEARIN GReplace .
HUB DIS/ASSEMBL YBASE07GAF-SD40700
2. Sea t th e interna l circli p in th e groov e o f th e bearin g
support .
CAUTION : Instal l th e circli p wit h th e radiuse d sid e
facin g out .
INTERNA L CIRCLI P
3. Pres s th e intermediat e shaf t inne r sea l int o th e
bearin g suppor t usin g th e specia l tools .
Press
SEAL DRIVE R
ATTACHMEN T
07JAD-SH3010A
DRIVER07749-0010000
HUB DIS/ASSEMBL YBASE07GAF-SD40700
4. Pres s th e intermediat e shaf t int o th e shaf t bearin g
usin g th e specia l tools .
Press
HUB ASSEMBL Y GUID E
ATTACHMEN T
07GAF-SE00200Fi t th e inne r rac e
o f th e bearing . INTERMEDIAT
E SHAF T
HU B DIS/ASSEMBL Y BAS E
07GAF-SD40700
INNER SEA LReplace .
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