ACURA RL KA9 1996 Service Repair Manual

Differential Assembl y
Inspection
To establis h a startin g poin t befor e disassembly , inspec t
the following :
Ring gea r backlas h
Tota l bearin g preloa d
Gea r toot h contac t
NOTE:
Be sur e th e differential is a t roo m temperatur e befor e
inspecting .
Recor d th e result s o f th e preliminar y inspections .
Thi s informatio n wil l b e helpfu l durin g reassembly .
Rin g gea r backlas h
1 . Remov e th e oi l fille r plu g an d th e oi l seal .
OIL SEA LReplace .
OIL FILLE R PLU G
4 4 N- m (4. 5 kgf-m , 3 3 Ibf-ft )
WASHE R
Replace .
BENCHVISE LOCKNU
T SOCKET ,
36 x 4 1 m m07HAA-SF1010 0
3. Alig n th e differentia l gea r inspectio n hol e wit h th e
oi l fille r plu g hole . 4
. Measur e th e backlas h o f th e rin g gea r o n th e differ -
entia l carrie r usin g th e specia l tool s a s shown . Afte r
measuring , remov e th e dia l gaug e an d tur n th e dif -
ferentia l carrie r on e ful l turn , the n remeasur e th e
backlash .
Standard : 0.0 6 - 0.1 4 m m (0.00 2 - 0.00 6 in )
Th e differenc e betwee n th e tw o measurement s take n
mus t no t excee d 0.0 6 m m (0.00 2 in) .
LOCKNU T SOCKET ,36 x 4 1 m m07HAA-SF1010 0
Total bearin g preloa d
5 . Remov e th e differentia l cas e cove r an d th e differen -
tia l carrier .
NOTE : Loose n th e bolt s i n a crisscros s pattern , i n
severa l steps .
10 x 1.2 5 mm44 N- m (4. 5 kgf-m , 3 3 Ibf-ft )
DIFFERENTIA L
CAS E COVE R
DIFFERENTIA L
CARRIER
2. Secur e th e differentia l assembly in a vis e wit h sof t
jaws .
SOFT JAW S
INSPECTIO NHOLE
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Use a dial-typ e torqu e wrenc h o n th e driv e pinio n to
measur e th e driv e pinio n bearin g preloa d (Tp) .
Standard : 1.4 2 - 1.9 1 N- m
(14. 5 - 19. 5 kgf-cm , 12. 6 - 16. 9 Ibf-in )
7. Reinstal l th e differentia l carrie r an d th e differentia l
cas e cover , the n measur e th e tota l bearin g preload .
Th e tota l bearin g preloa d shoul d excee d th e driv e
pinio n bearin g preloa d (Tp ) by :
Standard :
0.94 - 1.0 7 N- m (9. 6 - 10. 9 kgf-cm , 8.3 3 - 9.4 6 Ibf-in )
Example :
Total bearin g preloa d (fro m ste p 7 )
- T p (fro m ste p 6 ) Gea
r toot h contac t
8 . Remov e th e differentia l cas e cove r an d differentia l
carrier . Clea n an d pain t th e rin g gea r teet h lightl y an d
evenl y wit h Prussia n Blu e (o n bot h side s of eac h
tooth) .
9 . Reinstal l th e differentia l carrie r an d th e differentia l
cas e cover , the n torqu e th e bolt s in a crisscros s pat -
ter n in severa l steps .
10 . Instal l th e specia l too l a s shown , the n rotat e th e
driv e pinio n i n bot h direction s s o tha t th e rin g gea r
rotat e on e ful l tur n i n bot h directions . Durin g thi s
operatio n resistanc e shoul d b e applie d t o th e rin g
gear .
LOCKNU T SOCKET ,36 x 41 m m07HAA-SF1010 0
DRIVEPINIO N
11. Remov e th e differentia l cas e cove r an d th e differen -
tia l carrier , the n chec k th e toot h contac t pattern .
CORREC T TOOT H CONTAC T
TOE CONTAC T HEE L CONTAC T
FLANK CONTAC T FAC E CONTAC T
15-11
= 0.9 4 - 1.0 7 N- m (9. 6 - 10. 9 kgf-cm , 8.3 3 - 9.4 6 Ibf-in )
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Differential Assembly

Disassembly

1. Remove the bolts in a crisscross pattern, in several

steps, then remove the differential case cover.

DIFFERENTIAL

CASE COVER

DIFFERENTIAL CASE

2. Remove the oil seal from the differential case cover.

OIL SEAL

Replace.

DIFFERENTIAL

CASE COVER
Remove the bearing outer race and the 79.5 mm

thrust shim(s) from the differential case cover by heat-

ing the differential case cover to about 212°F (100°C).

NOTE:

Do not heat the differential case cover in excess

of 212°F (100°C).

If the bearing outer race was removed by heat-

ing, allow the differential case cover to cool to

room temperature.

Replace the tapered roller bearing with a new

one whenever the bearing outer race is replaced.

BEARING OUTER

RACE

79.5
mm

THRUST SHIM

(1 or 2 shims)

DIFFERENTIAL CASE COVER

4. Remove the breather plate.

SCREW

Replace.

BREATHER PLATEProCarManuals.com

5. Remov e th e differentia l carrie r fro m th e differential
case .
DIFFERENTIA L CARRIE R
DIFFERENTIA L CAS E
6. Remov e th e oi l guid e pipe .
OIL GUID EPIPE
7. Hol d th e driv e pinio n wit h a 1 1/4 " (3 2 mm ) he x bi t
an d socke t a s shown .
DRIVE PINIO N
1 1/4 " (3 2 mm ) HE X BI T an d SOCKE T
(Commerciall y available )
8. Rais e th e locknu t ta b fro m th e groov e o f th e driv e
pinion , an d remov e th e locknut , thrus t washe r an d
pinio n hub .
NOTE : B e sur e th e ta b o f th e locknu t i s completel y
clea r o f th e groov e o r damag e t o th e thread s ca n
occur .
TABLOCKNU TReplace.
THRUST WASHE R
PINION HU B
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Differential Assembl y
Disassembl y (cont'd )
9. Remov e th e oi l seal , the n remov e th e thrus t washer .
Us e a plasti c hamme r t o carefull y ta p th e driv e pin -
io n ou t o f th e tapere d rolle r bearing , the n remov e
th e bearing .
OIL SEA L
Replace .
TAPERE D ROLLE RBEARING THRUS
T WASHE R
10. Remov e th e driv e pinion , pinio n space r an d thrus t
washers .
THRUST WASHER S
PINIO N SPACE R
Replace .
DRIVE PINIO N
11. Remov e th e bearin g oute r races , thrus t washer s an d
79. 5 m m thrus t shim s fro m th e differentia l cas e b y
heatin g th e differentia l cas e to abou t 212° F (100°C) .
NOTE:
Do no t hea t th e differentia l cas e in exces s o f 212° F
(100°C) .
If th e bearin g oute r rac e wa s remove d b y heating ,
allo w th e differentia l cas e t o coo l t o roo m tem -
perature .
Replace th e tapere d rolle r bearin g wit h a ne w on e
wheneve r th e bearin g oute r rac e is replaced .
BEARING OUTE R RACE S
THRUS T WASHER S79.5 mmTHRUS T
SHIM(S )
( 1 o r 2 shims )
BEARIN G OUTE R
RACE
DIFFERENTIA LCASE
12. Remov e th e tapere d rolle r bearin g an d 4 3 m m
thrus t shi m usin g a pres s a s shown .
PRESS
TAPERE DROLLERBEARIN G
,43 m mTHRUS TSHIM
ATTACHMENT ,32 x 35 m m07746-001010 0
BEARING SEPARATOR , O - 4 1/2 in
(Commerciall y available )
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Differential Carrie r
Tapere d Rolle r Bearin g Replacemen t Backlas h Inspectio n
1. Remov e th e tapere d rolle r bearing s usin g th e bear -
in g separator and a pres s a s shown .
NOTE : Suppor t th e differentia l carrie r wit h you r
han d s o i t doe s no t fal l an d hi t th e groun d whe n
presse d clear .
ATTACHMENT ,32 x 35 m m07746-001010 0
PRESS
TAPERE DROLLERBEARIN G
BEARIN G SEPARATOR , 0 - 4 1/ 2 in
(Commerciall y available )
2. Instal l th e bot h tapere d rolle r bearing s usin g th e
specia l too l an d a pres s a s shown .
PRESS
STEEL BLOC KATTACHMENT ,45 x 55 m m I.D .07MAD-PR9010 0
TAPERED ROLLE R
BEARIN G
1. Remov e th e tapere d rolle r bearing s (se e tapere d
rolle r bearin g replacement) .
2 . Instal l th e lef t driveshaf t an d th e intermediat e shaf t
i n th e sid e gears .
3 . Measur e th e backlas h o f bot h pinio n gears .
Standard : 0.0 5 - 0.1 5 m m (0.00 2 - 0.00 6 in )
Servic e Limit : 0.3 0 m m (0.01 2 in )
PINIO N GEAR S
If th e backlas h exceed s th e servic e limit , replac e th e
differentia l carrier .
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Differential Carrier

Ring Gear Replacement

1. Remove the bolts in a crisscross pattern, in several

steps, and remove the ring gear.

11 x 1.0 mm

118 N-m (12.0 kgf-m,

87 Ibf-ft)

DIFFERENTIAL

CARRIER

RING

GEAR

2.
Install the ring gear by tightening the bolts in a

crisscross pattern, in several steps. If the bolts are

difficult to tighten, make sure that the ring gear is

going onto the differential carrier correctly.ProCarManuals.com

Differential Assembl y
Reassembl y
NOTE:
If replacemen t i s required , alway s replac e th e driv e
pinio n an d rin g gea r a s a set .
I f th e driv e pinio n an d rin g gea r ar e replaced , chec k th e
heigh t adjustmen t (se e pag e 15-24 ).
I f replacemen t o f on e o f th e tapere d rolle r bearing s i n
th e driv e pinio n an d i n th e differentia l carrie r i s
required , us e th e sam e mak e bearing s an d replac e bot h
bearing s a t th e sam e time .
DRIV E PINIO N
ETCHE D MAR Keg: A1 - +/ - 2 0se t numbe r
RING GEA RSET NUMBE R
1. Instal l th e 4 3 m m thrus t shi m an d tapere d rolle r
bearin g usin g th e specia l tool s an d a pres s a s shown .
NOTE : Us e a use d pinio n space r wit h th e specia l
too l fo r bearin g installation , an d the n discar d th e
use d pinio n spacer .
PRESS
DRIVER , 4 0 m m I.D .07746-003010 0
ATTACHMENT , 3 5 m m07746-003040 0
TAPERED ROLLE R
BEARIN G
43 m mTHRUS TSHIMPINIO N SPACE R(Used)
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2. Chec k th e differentia l cas e bearin g surfac e area s fo r
burrs , an d remov e a s needed . Positio n th e inboar d
thrus t washe r int o th e differentia l case . Usin g th e
side s o f th e specia l tool s stampe d "A" , instal l th e
outboar d bearin g oute r rac e a s shown . Repea t fo r
th e inboar d bearin g oute r race .
THRUS T WASHER S BEARIN
G OUTE R RAC E
(inboard )
BEARIN G OUTE R
RAC E (outboard )
DIFFERENTIA L
CASE
a. Firs t instal l th e outboar d bearin g oute r race .
TAPERE DBEARING RAC E
INSTALLE R A
07MAF-SP0011 A
MARK B
BEARIN G
OUTERRACEINSTALLE R
SHAF T
07MAF-SP0013 A
MARK B
TAPERE DBEARING RAC E
INSTALLE R B
07MAF-SP0012 A
b. Nex t instal l th e inboar d bearin g oute r race .
TAPERE DBEARING RAC EINSTALLE R A07MAF-SP0011 ATHRUST WASHE R
MARK BMAR K B
TAPERE DBEARING RAC E
BEARIN G INSTALLE R B
OUTE R 07MAF-SP0012 A
RACE
3. Instal l th e 79. 5 m m thrus t shim(s ) an d bearin g oute r
rac e usin g th e specia l tool s a s shown .
NOTE : Instal l th e 79. 5 m m thrus t shim(s ) tha t wa s
removed .
79.5 mmTHRUS T SHIM(S )
( 1 o r 2 shims )
DIFFERENTIA L
CASE
BEARIN G DRIVE R
ATTACHMEN T
07GAD-SD4010 1DRIVER07749-001000 0
79.5 m m THRUS T SHIM(S )
( 1 o r 2 shims )
BEARIN
G OUTE R RAC E
INSTALLE
R
SHAF T
07MAF-SP0013 A
THRUST WASHE R
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Differential Assembl y
Reassembl y (cont'd )
4. Instal l th e 79. 5 m m thrus t shim(s ) an d bearin g oute r
rac e usin g th e specia l tool s a s shown .
NOTE : Instal l th e 79. 5 m m thrus t shim(s ) tha t wa s
removed .
BEARING OUTE R RAC E
79.5 m m THRUS T SHIM(S )
( 1 o r 2 shims )
DIFFERENTIA LCASE COVE R
BEARIN G DRIVE RATTACHMEN T
07GA D-SD4010 1DRIVER07749-001000 0
79.5 m m THRUS T SHIM(S )
( 1 o r 2 shims )
5. Appl y lubrican t t o th e tapere d rolle r bearing , the n
instal l th e driv e pinio n int o th e differentia l cas e a s
shown .
NOTE : D o no t instal l th e pinio n space r an d thrus t
washer s a t thi s time .
DRIV E PINIO N
DIFFERENTIA LCASE
6. Appl y lubrican t t o th e tapere d rolle r bearing , the n
instal l i t usin g th e specia l too l whil e holdin g th e driv e
pinio n a s shown .
DRIVER , 4 0 m m I.D .07746-003010 0
TAPERED ROLLE RBEARIN G
DRIVE PINIO N
7. Instal l th e larg e thrus t washer , pinio n hub , smal l
thrus t washer , an d a ne w locknut .
NOTE : Lubricat e th e locknu t an d driv e pinio n thread s
with gea r oil .
LOCKNU T
THRUST WASHE R
PINION HU B
THRUS T WASHE R
DRIVE PINIO N
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