1995 ACURA TL Service Repair Manual

PumpFront sea l leaking .
Pum p housin g leak s a t eithe r
end.
Replac e fron t seal .
Replac e housin g O-rings .
I f th e housin g stil l leaks , replac e
the pump .
Reservoi rLeaking fro m aroun d cap . Reservoi
r overfilled .
Pul l of f th e hos e an d drai n th e
reservoi r t o th e prope r level .
Ai r lea k i n suctio n sid e o f syste m
(reservoir , inle t hose , fron t pum p
seal).
Pump outle t lin e
(hig h pressure ) Leakin
g a t th e threade d fitting .
Leakin g a t th e swagge d joint .Tighte n th e fitting . I f it' s stil l leak -ing, replac e th e O-rin g o r high -
pressur e line .
Replac e th e high-pressur e line .
Pum p inle t lin e
(low-pressure )
Leaking becaus e o f damage , de -
terioration , o r imprope r assem -
bly.Replac e o r repai r a s necessary .
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Inspection an d Adjustmen t
Steering Operatio n
Place th e fron t wheel s i n th e straigh t ahea d position ,
an d measur e th e distanc e th e steerin g whee l ca n b e
turne d withou t movin g th e fron t wheels .
ROTATIONA L PLAY : 0 - 10 m m (0 - 0.3 9 in )
If th e pla y exceed s the servic e limit, perfor m rack guid e
adjustmen t (se e pag e 17-24 ).
I f th e pla y i s stil l excessiv e afte r rac k guid e adjustment ,
inspec t th e steerin g linkag e an d gearbo x a s describe d
o n th e nex t page .
ROTATIONA L PLA Y
Powe r Assis t Chec k wit h Vehicl e
Parked
1. Chec k th e powe r steerin g flui d leve l (se e pag e 17-24 )
an d pum p bel t tensio n (se e pag e 17-23 ).
2 .
3 .
Star t th e engine , allo w it t o idle , an d tur n th e steer -
in g whee l fro m lock-to-loc k severa l time s t o war m
up th e fluid .
Attac h a sprin g scal e to th e steerin g wheel . Wit h th e
engin e idlin g an d th e vehicl e o n a clean , dr y floor ,
pul l th e scal e a s shown . Rotat e th e steerin g whee l
more tha n 9 0 degre e angl e b y pullin g th e sprin g
scale. Rea d th e figur e o n th e sprin g scal e whil e th e
steerin g whee l i s i n motion .
SPRING SCAL E(Commerciall y available )
A. Th e scal e shoul d rea d n o mor e the n 2 4 N (2. 4 kgf ,
5.3 Ibf) .
If i t read s more , g o o n t o ste p 5 .
5 . Sto p th e engine . Disconnec t th e hos e fro m th e
powe r steerin g spee d sensor , an d plu g th e hos e
an d th e senso r fittin g a s shown .
PLUG
POWE R STEERIN GSPEED SENSO R
6. Star t th e engine , an d le t i t idle .
I f th e readin g is no w 2 4 N (2. 4 kgf , 5. 3 Ibf ) o r less ,
connec t th e senso r hos e a s i t is . I f th e steerin g
effor t i s abov e 2 4 N (2. 4 kgf , 5. 3 Ibf) , replac e th e
powe r steerin g spee d senso r (se e pag e 17-25 ).
I f th e readin g i s stil l mor e tha n 2 4 N (2. 4 kgf , 5. 3
Ibf) , chec k th e gearbo x an d pump .
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Assist Chec k a t Roa d Spee d
1. Chec k th e powe r steerin g flui d leve l (se e pag e 17-24 ),
an d chec k th e pum p bel t tensio n (se e pag e 17-23 ).
2 .
3 .
Star t th e engine , le t i t war m u p t o norma l operatin g
temperature , an d tur n th e steerin g whee l lock-to-loc k
a fe w time s t o war m u p th e fluid .
Stop th e engine . T o simulat e speed s abov e 6 2 mp h
(100 km/h) , disconnec t th e hose s fro m th e powe r
steerin g spee d senso r an d connec t the m to th e spe -
cia l tool . Plu g th e en d o f th e specia l tool .
Instal l a plug .
BYPAS S TUB E JOIN T07406-001010 1(Included wit h07406-001000 A or07406-0010001 )
POWER STEERIN GSPEED SENSO R
4. Attac h th e sprin g scal e t o th e steerin g wheel . Wit h
the engin e idlin g an d th e vehicl e o n a clean , dr y
floor , pul l th e scal e a s shown . Rotat e th e steerin g
whee l mor e tha n 9 0 degree s b y pullin g th e sprin g
scale . Rea d th e figur e o n th e sprin g scal e whil e th e
steerin g whee l i s i n motion .
SPRING SCAL E(Commerciall y available )
• I f th e scal e read s les s tha n 2 4 N (2. 4 kgf , 5. 3 Ibf) ,
th e powe r steerin g spee d senso r i s O K an d th e
proble m is i n th e senso r fee d line , th e pump , th e
powe r steerin g spee d sensor , o r th e valv e bod y
unit . Se e i f th e fee d lin e i s pinche d o r bent , the n
chec k th e pump .
• Se e Genera l Troubleshootin g (se e pag e 17-12 ).
Powe r Steerin g Spee d Senso r
Replacemen t
1. Disconnec t th e vehicl e spee d senso r (VSS ) wir e con -
necto r fro m th e powe r steerin g spee d sensor .
SENSO R HOSE S
VSS WIR E CONNECTO R
POWER STEERIN GSPEED SENSO R
SENSOR MOUNTIN G BOL T6 x 1. 0 m m12 N- m11.2 kgf-m , 9 Ibf-ft )
2. Remov e th e senso r mountin g bolt , an d remov e th e
powe r steerin g spee d senso r fro m th e differentia l
housing .
3 . Disconnec t th e senso r hose s an d plu g th e fittings .
4 . Afte r installin g a ne w powe r steerin g spee d sensor ,
tur n th e steerin g whee l lock-to-loc k wit h th e engin e
idlin g t o blee d ai r fro m th e system .
5 . Chec k th e reservoir , an d ad d flui d if necessary .
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Inspection an d Adjustmen t
Steering Linkag e an d Gearbo x
STEERIN G COLUM NInspect fo r loos e colum n
mountin g bolt s an d nuts .
BOO TInspec t fo r damag e an d deterioration .
STEERING JOINT SCheck fo r loos e join t bolts .
TIE-RO D LOCKNU TCheck fo r loos e locknut .
STEERIN G GEARBO XInspect fo r loos e mountin g bolts .BALL JOIN T BOO T
Inspec t fo r damag e an d deterioration .
Se e pag e 17-6 9 fo r replacement .
TIE-RO D EN D BAL L JOIN T
Inspec t fo r fault y movemen t
and damage .
GEARBO X MOUNTIN G CUSHION SInspect fo r deterioration .
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Pump Bel t
NOTE : Whe n usin g a ne w belt , firs t adjus t th e deflectio n
o r tensio n t o th e value s fo r th e ne w belt , the n readjus t
th e deflectio n o r tensio n t o th e value s fo r th e use d bel t
afte r runnin g engin e fo r fiv e minutes .
Inspectio n
Attach th e specia l too l t o th e bel t an d measur e th e ten -
sio n o f th e belt .
Tension :
Used Belt : 39 0 - 54 0 N (4 0 - 5 5 kgf , 88-12 0 Ibf )
New Belt : 74 0 - 88 0 N (7 5 - 9 0 kgf , 17 0 - 20 0 Ibf )
NOTE :
• I f ther e ar e crack s o r an y damag e eviden t o n th e belt ,
replac e it wit h a ne w one .
• Follo w th e manufacturer' s instruction s fo r th e tensio n
gauge.BELT TENSIO N GAUG E07JGG-001010 A
POWER STEERIN G PULLE Y CRANKSHAF T PULLE Y
Inspect th e pum p bel t fo r crack s o r an y damage .
Replac e th e bel t wit h a ne w on e if necessary .
Measuremen t withou t Bel t Tensio n Gauge :
Appl y a forc e o f 9 8 N (1 0 kgf , 2 2 Ibf ) an d measur e th e
deflectio n betwee n th e powe r steerin g pum p an d th e
crankshaf t pulleys .
Deflection :
Use d Belt : 8. 5 - 10. 0 m m (0.3 3 - 0.3 9 in )
Ne w Belt : 5. 5 - 6. 5 m m (0.2 2 - 0.2 6 in )
POWE R STEERIN G PULLE Y
CRANKSHAF T PULLE Y
Adjustmen t
1. Loose n th e powe r steerin g pum p mountin g nut s
and bolt .
2. Tur n th e adjustin g bol t t o ge t th e prope r bel t ten -
sion , the n retighte n th e nut s an d bolt .
3 . Star t th e engin e an d tur n th e steerin g whee l fro m
lock-to-loc k severa l times , the n sto p th e engin e an d
rechec k th e deflectio n o f th e belt .
PUM P MOUNTIN G NU T22 N- m (2. 2 kgf-m , 1 6 Ibf-ft )
ADJUSTIN G BOL T
POWER STEERIN G PUM P
PUM P MOUNTIN G BOL T
4 9 N- m (5. 0 kgf-m , 3 6 Ibf-ft )
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Inspection an d Adjustmen t
Rack Guid e Adjustmen t
NOTE: Perfor m rac k guid e adjustmen t wit h th e wheel s
i n th e straigh t ahea d position .
1 . Loose n th e rac k guid e scre w locknu t wit h th e spe -
cial tool , the n loose n th e rac k guid e screw .
Fluid Replacemen t
RACK GUID E SCRE W
LOCKNU T25 N- m(2.5 kgf-m , 1 8 Ibf-ft )
LOCKNU T WRENCH , 4 0 m m
07916-SA50001
2. Tighte n th e rac k guid e scre w to 2 5 N- m (2. 5 kgf-m ,
1 8 Ibf-ft) , the n loose n it .
3 . Retighte n th e rac k guid e scre w to 3. 9 N- m (0. 4 kgf-m ,
2. 9 Ibf-ft) , the n bac k it of f t o specifie d angle .
Specifie d Retur n Angle : 2 0 ± 5°
4 . Tighte n th e locknu t whil e holdin g th e rac k guid e
screw .
5. Chec k fo r tigh t o r loos e steerin g throug h th e com -
plet e turnin g travel .
6 . Perfor m followin g inspections :
• Steerin g operatio n (se e pag e 17-20 ).
• Powe r assis t wit h vehicl e parked . Chec
k th e reservoi r a t regula r intervals , an d ad d flui d a s
necessary .
CAUTION: Alway s us e Genuin e Hond a Powe r Steerin g
Fluid- V o r S . Usin g an y othe r typ e o f powe r steerin g flui d
o r automati c transmissio n flui d ca n caus e increase d wea r
an d poo r steerin g in col d weather .
SYSTEM CAPACITY :
1.3 lite r (1.3 7 US . qt , 1.1 4 Imp.qt )
a t disassembl y
RESERVOIR CAPACITY :
0.5 lite r (0.5 3 US . qt , 0.4 4 Imp.qt )
UPPER LEVE L LIN E
LOWE R LEVE L LIN E
Rais e th e reservoir , the n disconnec t th e retur n hose .RETUR N HOS E HOSE
Connect a hos e o f correc t diamete r t o th e discon -
necte d retur n hose , an d pu t th e hos e en d i n a suit -
abl e container .
CAUTION : Tak e car e no t t o spil l th e flui d o n th e
bod y an d parts . Wip e of f an y spille d flui d a t once .
3. Star t th e engine , le t i t ru n a t idle , an d tur n th e steer -
ing whee l fro m lock-to-loc k severa l times . Whe n
flui d stop s runnin g ou t o f th e hose , shu t of f th e
engine . Discar d th e fluid .
4 . Reinstal l th e retur n hos e o n th e reservoir .
5 . Fil l th e reservoi r t o th e uppe r leve l line .
6 . Star t th e engin e an d ru n i t a t fas t idle , the n tur n th e
steerin g fro m lock-to-loc k severa l time s t o blee d ai r
fro m th e system .
7 . Rechec k th e flui d leve l an d ad d som e if necessary .
CAUTION: D o no t fil l th e reservoi r beyon d th e
uppe r leve l line .
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Pump Pressur e Chec k
Chec k th e flui d pressur e a s follow s t o determin e
whethe r th e troubl e i s i n th e pum p o r gearbox .
NOTE : Firs t chec k th e powe r steerin g flui d leve l an d
pum p bel t tension .
CAUTION : Disconnec t th e hig h pressur e hos e wit h car e
s o a s no t t o spil l th e powe r steerin g flui d o n th e fram e
an d othe r parts .
1 . Disconnec t th e outle t hos e (high-pressure ) fro m th e
pum p outle t fitting , the n instal l th e P/ S join t adapte r
(pump) o n th e pum p outlet .
OUTLE T HOS E FITTIN G
(High-pressure )
P/ S PRESSUR E
GAUG E
07406-001000 1
HOSE ATTACHIN G BOL T
1 1 N- m (1. 1 kgf- m 8 Ibf-ft )
P/ S JOIN T ADAPTO R (HOSE )
07QAK-PV3012 0
PRESSURECONTROL VALV E
6 x 1. 0 m m BOL T
(Par t o f tool )
11 N- m(1.1 kgf-m , 8 Ibf-ft )
SHUT-OF F
VALVE
P/S JOIN T ADAPTO R (PUMP )
07QAK-PV3011 0
2. Connec t th e P/ S join t adapte r (hose ) t o th e powe r
steerin g pressur e gauge , the n connec t th e outle t
hos e (high-pressure ) t o th e adaptor .
3 . Instal l th e powe r steerin g pressur e gaug e t o th e P/ S
join t adapto r (pump) .
4 . Ope n th e shut-of f valv e fully .
5 . Ope n th e pressur e contro l valv e fully . 6
. Star t th e engine and le t i t idle .
7. Tur n th e steerin g whee l fro m lock-to-loc k severa l
times t o war m th e flui d t o operating temperature .
8 . Measur e steady-stat e flui d pressur e whil e idling . I f
th e pum p i s i n goo d condition , th e gaug e shoul d
rea d les s tha n 150 0 kP a (1 5 kgf/cm
2, 21 3 psi) .
I f i t read s high , chec k th e fee d lin e o r valv e bod y
uni t (se e Genera l Troubleshootin g 17-12 ).
9 . Clos e th e pressur e contro l valve , the n clos e th e
shut-of f valv e graduall y unti l th e pressur e gaug e
needl e is stable . Rea d th e pressure .
10 . Immediatel y ope n th e pressur e contro l valv e fully .
CAUTION : D o no t kee p th e pressur e contro l valv e
close d mor e the n 5 second s o r th e pum p coul d b e
damage d b y over-heating .
I f th e pum p i s i n goo d condition , th e gaug e shoul d
rea d a t leas t 7,80 0 - 8,80 0 kP a (8 0 - 9 0 kgf/cm
2, 1,13 8
- 1,28 0 psi) . A lo w readin g mean s pum p outpu t i s
to o lo w fo r ful l assist . Repai r o r replac e th e pump .
P/S PRESSUR E GAUG E07406-001000 1 PRESSUR ECONTROL VALV E
SHUT-OF F VALV E
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Inspection an d Adjustmen t
Fluid Leakag e Inspectio n
POWER STEERIN G SPEE D SENSO R
Chec k fo r leak s a t th e roto r housin g
matin g surfac e an d hos e connections .
GEARBO X an d VALV E BOD Y UNI T an d ASSIS T
CONTRO L VALV E UNI T
Chec k fo r leak s a t th e matin g surface , an d hos e
an d pip e connections .
PUM P ASSEMBL Y
Chec k fo r leak s a t th e pum p
seal, inle t an d outle t fitting s
HOSE S an d LINE S
Inspec t hose s fo r damage , leaks ,
interferenc e o r twisting .Inspect flui d line s fo r damage ,rusting o r leakage .Inspect fo r leak s a t hos e an dline joint s o r connections .
BOOTChec k fo r leaks .
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