ACURA RL KA9 1996 Service Repair Manual

Engine Moun t Contro l Syste m
Troubleshootin g Flowchar t
NOTE:
Check th e vacuu m hose s an d line s fo r damag e an d prope r connections .
Refe r t o th e Troubleshootin g Procedure s (se e sectio n 11 ).
Th e engin e vibrate s excessivel y
whe n idling .
Chec k Idl e Speed :
War m u p engin e t o norma l oper -
ating temperatur e (th e coolin gfan come s o n 2 times) .
I s th e idl e spee d les s tha n
70 0 rpm ? Adjus
t th e idl e spee d (se e
sectio n 11 ).
Chec k th e Engin e Moun t Contro l
System:1. Full y depres s th e brak e pedal .
2 . Wit h th e transmissio n i n gear ,
hav e a n assistan t disconnec t
and reconnec t th e IMRC /engine moun t contro l solenoi d
valv e assembl y 6 P connector .
I s ther e a noticeabl e chang e in
idl e smoothnes s whe n th e
IMRC/engin e moun t contro lsolenoi d valv e assembl y 6 P con -
necto r i s disconnected ? Reconnec
t th e IMRC/engin e
moun t contro l solenoi d valv e
assembl y 6 P connector . Th e
engin e moun t contro l syste m isOK .
IMRC/ENGIN E MOUN T
CONTRO L SOLENOI D
VALV E ASSEMBL Y 6P
CONNECTO R
Test th e Engin e Moun t Contro l
Solenoi d Valv e Wire :
1. Shif t t o o r position .
2 . Disconnec t th e IMRC/engin e
moun t contro l solenoi d valv e
assembl y 6 P connector .
3 . Measur e voltag e betwee n th e
No. 3 termina l an d bod y
ground .
Is ther e batter y voltage ? Repai
r ope n i n BLK/YE L wir e
betwee n th e IMRC/engin e
moun t contro l solenoi d valv e
assembl y 6 P connecto r an d PC M
fuse (2 0 A) .
Wir e sid e o f femal e
terminal s
Tes t th e Engin e Moun t Contro l
Solenoi d Valv e Wire :
Measur e voltag e betwee n th e
No . 3 an d No . 6 terminals .
I s ther e batter y voltage ?
NO
(T o pag e 5-21 ) —
Repai r ope n i n L T GR N wir e
betwee n PC M (A17 ) an d th e
IMRC/engin e moun t contro l
solenoi d valv e assembl y 6 P
connector .— If th e wir e i s OK , substitut e a
known-goo d PC M an d recheck .
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(From pag e 5-20 ) IMRC/ENGIN
E MOUN T
CONTRO L SOLENOI D
VALV E ASSEMBL Y 6PCONNECTO R
Test th e Engin e Moun t Contro l
Solenoi d Valv e Wire :
1 . Rais e th e engin e spee d abov e
1,000 rpm .2. Measur e voltag e betwee n th e
No . 3 an d No . 6 terminals .
I s ther e batter y voltage ? Repai
r shor t t o bod y groun d in
L T GR N wir e betwee n PC M
(A17 ) an d th e IMRC/engin e
moun t contro l solenoi d valv e
assembl y 6 P connector .If th e wir e i s OK , substitut e a
known-goo d PC M an d recheck . Wir
e sid e o f femal e
terminal s
ENGIN E MOUN TCONTRO L SOLENOI DVALVE
Test th e Engin e Moun t an d Vac -uum Hose :Disconnec t th e uppe r vacuu m
hos e fro m th e engin e moun t con -
tro l solenoi d valve , an d connec t a
vacuu m pump/gaug e t o th e hose .
Appl y vacuu m fo r 2 0 seconds .
Doe s th e engin e moun t hol d
vacuum ?
— Inspec t th e vacuu m hose .
— Replac e th e lef t and/o r righ t
engin e mount . VACUU
M PUMP /
GAUGE , 0-3 0 in.Hg .
A973 X-04 1-XXXX X UPPE
R VACUU M
HOSE
Test th e Engin e Mount :
Releas e th e vacuum , the n appl y
vacuu m again . ENGIN
E MOUN T
CONTRO L SOLENOI D
VALVE
Is ther e a noticeabl e chang e in
idl e smoothnes s wit h an d
withou t vacuu m applied ? Replac
e th e lef t and/o r righ t
engin e mount .
Tes t th e Engin e Moun t Contro l
Solenoi d Valve :
Disconnec t th e lowe r vacuu m
hos e fro m th e engin e moun t con -
tro l solenoi d valve , an d connec t a
vacuu m gaug e t o th e hose .
I s ther e manifol d vacuum ?
Repair a s needed . VACUU
M PUMP /
GAUGE , 0-3 0 in.Hg .
A973 X-04 1-XXXX X LOWE
R VACUU M
HOSE
Replac e th e engin e moun t contro lsolenoi d valve .
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Engine Moun t Contro l Syste m
Diaphrag m Actuato r Tes t
1. Disconnec t th e vacuu m hoses , the n remov e th e lef t
and righ t engin e mount s (se e pag e 5-17 ).
2 . Remov e th e actuato r cover .
6 x 1. 0 m m13 N- m (1. 3 kgf-m ,
9. 4 Ibf-ft ) ACTUATO
RCOVER
3. Clea n an d oi l th e diaphrag m actuato r rod .
4 . Wit h a vacuu m pump/gauge , appl y vacuu m o f abou t
30. 7 kP a (23 0 m m Hg , 9. 1 in.Hg) , an d chec k tha t th e
actuato r ro d move s smoothly .
Replac e th e engin e moun t i f th e actuato r ro d doe s
no t operate .
DIAPHRAG M
ACTUATO R
VACUUM PUMP/GAUGE ,0-30 in.Hg .A973X-041-XXXX X
ENGINEMOUN T
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Special Tool s
Ref. No.Too l Numbe r DescriptionQtyPag e Referenc e
Valve Guid e Reamer , 5. 5 m m
Socket , 1 9 m m
Holde r Handl e
Holde r Attachment , 5 0 mm , Offse t
Valv e Guid e Driver , 5. 5 m m
Valv e Sprin g Compresso r Attachmen t6-34
6-3
6-3
6-3
6-3 3, 6- 34
6-29 , 6- 35
07HAH-PJ7010 B
07JAA-001020 A
07JAB-001020 A
07MA B - PY3010 A
07742-001010 0
07757-PJ1010 A
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Crankshaft Pulle y an d Pulle y Bol t
Replacemen t
When installin g an d tightenin g th e pulley , follo w th e procedur e below .
Clean, remov e an y oil , an d lubricat e th e point s show n below .
Clean
Remov e an y oi l
Lubricat e
WASHER
PULLE Y BOL T CRANKSHAF
T
PULLE Y
TIMING BEL TDRIV E PULLE Y
CRANKSHAFT
BALANCE R
BEL T DRIV E PULLE Y
TIMING BEL TGUID E PLAT E
Crankshaf t pulle y bol t siz e an d torqu e value :
16 x 1. 5 m m
245 N- m (25. 0 kgf-m , 18 1 Ibf-ft )
HOLDE R HANDL E07JAB-001020 A
HOLDE R ATTACHMENT ,
5 0 mm , OFFSE T
07MA B-PY3010 A
SOCKET , 1 9 m m
07JAA-001020 A(Commercially available )
NOTE: D o no t us e a n impac t wrenc h whe n installing .
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Timing Bel t an d Balance r Bel t
Illustrate d Inde x
NOTE :
Refer t o pag e 6-1 0 fo r ho w to positio n th e crankshaf t an d pulle y befor e installin g th e belt .
Mark th e directio n o f rotatio n o n th e bel t befor e removin g it .
Do no t us e th e uppe r cover s an d lowe r cove r t o stor e remove d items .
Clean th e uppe r cover s an d lowe r cove r befor e installin g them .
Replac e th e camshaf t seal s an d crankshaf t seal s i f ther e i s oi l leakage .
Refer t o pag e 6- 3 befor e installin g th e timin g belt .
TIMIN G BEL TADJUSTIN G BOL T10 x 1.2 5 mm42 N- m (4. 3 kgf-m ,
3 1 Ibf-ft )
TIMIN G BEL TInspection , pag e 6- 5Adjustment , pag e 6- 5Removal , pag e 6- 8Installation , pag e 6-1 0
BALANCE R BEL TInspection , pag e 6- 6Adjustment , pag e 6- 7Removal , pag e 6- 8Installation , pag e 6-1 0
RIGH T UPPE R
COVE R
TIMING BEL TDRIV E PULLE YReplacement , pag e 6- 3
LOWE R
COVE R BALANCE
R
BEL T DRIV E PULLE Y
Replacement , pag e 6- 3
IDLE R PULLE YBRACKE T
8 x 1.2 5 mm22 N- m (2. 2 kgf-m , 1 6 Ibf-ft )
PULLE Y BOL T
16 x 1. 5 m m245 N- m (25. 0 kgf-m ,
18 1 Ibf-ft )
Replacement , pag e 6- 3Do no t us e a n impac twrench whe n installing .
6 x 1. 0 m m12 N- m (1. 2 kgf-m , 8. 7 Ibf-ft )
RUBBE R SEA L
Replac e whe n damage dor deteriorated .
6 x 1. 0 m m12 N- m (1. 2 kgf-m , 8. 7 Ibf-ft )
CRANKSHAF T PULLE Y
Replacement , pag e 6- 3 LEF
T UPPE R
COVE R
O-RINGReplace .
RUBBE R SEAL S
Replac e whe n damage d
or deteriorated .
6 x 1. 0 m m12 N- m (1. 2 kgf-m ,
8. 7 Ibf-ft ) BALANCE
R BEL T
ADJUSTIN G BOL T
10 x 1.2 5 mm44 N- m (4. 5 kgf-m ,
3 3 Ibf-ft )
KEY
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Timing Bel t
Inspectio n
1. Remov e th e lef t uppe r cover .
2 . Inspec t th e timin g bel t fo r crack s an d oi l o r coolan t
soaking .
NOTE:
Replac e th e bel t i f oi l o r coolan t soaked .
Remov e an y oi l o r solven t tha t get s o n th e belt .
Inspec t thi s are afor wear .
Tensio n Adjustmen t
Rotate pulle y an dinspec t th e belt .
CAUTION :
Always adjus t th e timin g bel t tensio n wit h th e engin e
cold.
Do no t rotat e th e crankshaf t whe n th e adjustin g bol t
i s loose .
NOTE :
The tensione r i s spring-loade d to appl y tensio n t o th e
bel t automaticall y afte r makin g th e followin g adjust -
ment .
Inspec t th e timin g bel t befor e adjustin g th e bel t ten -
sion .
Alway s rotat e th e crankshaf t clockwis e whe n viewe d
fro m th e pulle y side . Rotatin g it counte r clockwis e ma y
resul t i n imprope r adjustmen t o f th e bel t tension .
1 . Remov e th e lef t uppe r cover .
2 . Se t th e No . 1 pisto n a t TD C (se e pag e 6-13 ).
3 . Rotat e th e crankshaf t clockwis e te n teet h o n th e
camshaf t pulley . Th e blu e mar k o n th e crankshaf t pul -
le y shoul d lin e u p wit h th e pointe r o n th e lowe r cover .
TIMING BEL TADJUSTIN G BOL T42 N- m (4. 3 kgf-m ,
3 1 Ibf-ft )
POINTE R O NLOWE R COVE R
BLU E MAR K
TD C MAR K
(WHITE )
4. Loose n th e timin g bel t adjustin g bol t 180° .
5 . Tighte n th e adjustin g bolt , torqu e to 4 2 N- m (4. 3 kgf-m ,
31 Ibf-ft) .
Directio nof rotation .
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Balancer Bel t
Inspectio n
1. Remov e th e engin e cove r (se e pag e 5-3 ).
2 . Remov e th e intak e ai r duc t an d ai r cleane r housin g
assembl y (se e pag e 5-4 ).
3 . Loose n th e mountin g bolt , loc k bol t an d adjustin g
rod , the n remov e th e alternato r bel t (se e pag e 5-7 ).
4 . Loose n th e idle r pulle y cente r nu t an d adjustin g
bolt, the n remov e th e ai r conditionin g (A/C ) com -
presso r bel t (se e pag e 5-7 ).
5 . Remov e th e TC S contro l valv e uppe r an d lowe r
bracket s (se e pag e 6-8 ).
6 . Loose n th e adjustin g bolt , locknu t an d mountin g
bolt , the n remov e th e powe r steerin g (P/S ) pum p
belt.
ADJUSTIN GBOLT
LOCKNU T8 x 1.2 5 mm22 N- m (2. 2 kgf-m ,
1 6 Ibf-ft )
MOUNTIN G BOL T10 x 1.2 5 mm44 N- m (4. 5 kgf-m ,
3 3 Ibf-ft )P/S PUM PBELT
7. Disconnec t th e TC S throttl e senso r connecto r an d
TC S throttl e actuato r connector , the n remov e th e
TC S contro l valv e assembl y (se e pag e 6-8 ).
8 . Disconnec t th e vehicl e spee d senso r (VSS ) sub-har -
nes s connector , the n remov e th e wir e harnes s holde r
(se e pag e 6-8 ).
9 . Remov e th e breathe r hos e an d vacuu m hose s (se e
pag e 6-9 ).
10 . Remov e th e vacuu m hose s an d ignitio n contro l
modul e (ICM ) bracke t (se e pag e 6-9 ). 11
. Remov e th e crankshaf t pulle y (se e pag e 6-3 ).
12 . Remov e th e idle r pulley , th e dipstick , an d th e dip -
stic k tub e (se e pag e 6-9 ).
13 . Remov e th e uppe r an d lowe r covers .
RIGHT UPPE R
COVE R LOWE
R
COVE R
6 x 1. 0 m m12 N- m (1. 2 kgf-m ,
8. 7 Ibf-ft ) RUBBE
R
SEA L LEF
T UPPE R
COVE R
14. Inspec t th e balance r bel t fo r crack s an d oi l o r
coolan t soaking .
NOTE:
Replac e th e bel t i f oi l o r coolan t soaked .
Remov e an y oi l o r solven t tha t get s o n th e belt .
Rotat e pulle y an dinspec t th e belt .
Inspec t thi s are afor wear .
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Tension Adjustmen t
CAUTION:
Always adjus t th e balance r bel t tensio n wit h th e
engin e cold .
D o no t rotat e th e crankshaf t whe n th e adjustin g bol t
i s loose .
NOTE :
The tensione r i s spring-loade d t o appl y tensio n t o th e
bel t automaticall y afte r makin g th e followin g adjust -
ment.
Inspec t th e balance r bel t befor e adjustin g th e bel t
tension .
Alway s rotat e th e crankshaf t clockwis e whe n viewe d
fro m th e pulle y side . Rotatin g i t counterclockwis e ma y
resul t i n imprope r adjustmen t o f th e bel t tension .
1 . Remov e th e engin e cove r (se e pag e 5-3 ).
2 . Remov e th e intak e ai r duc t an d ai r cleane r housin g
assembl y (se e pag e 5-4 ).
3 . Loose n th e mountin g bolt , loc k bol t an d adjustin g
rod , the n remov e th e alternato r bel t (se e pag e 5-7 ).
4 . Loose n th e idle r pulle y cente r nu t an d adjustin g
bolt, the n remov e th e ai r conditionin g (A/C ) com -
presso r bel t (se e pag e 5-7 ).
5 . Loose n th e adjustin g bolt , locknu t an d mountin g
bolt , the n remov e th e powe r steerin g (P/S ) pum p
bel t (se e pag e 6-6 ).
6 . Remov e th e TC S contro l valv e uppe r an d lowe r
bracket s (se e pag e 6-8 ).
7 . Disconnec t th e TC S throttl e senso r connecto r an d
TC S throttl e actuato r connector , the n remov e th e
TC S contro l valv e assembl y (se e pag e 6-8 ).
8 . Disconnec t th e vehicl e spee d senso r (VSS ) sub-har -
nes s connector , the n remov e th e wir e harnes s holde r
(se e pag e 6-8 ).
9 . Remov e th e breathe r hos e an d vacuu m hose s (se e
pag e 6-9 ).
10 . Remov e th e vacuu m hose s an d ignitio n contro l
modul e (ICM ) bracke t (se e pag e 6-9 ).
11 . Remov e th e crankshaf t pulle y (se e pag e 6-3 ).
12 . Remov e th e uppe r an d lowe r cover s (se e pag e 6-6 ). 13
. Se t th e No . 1 pisto n a t TD C (se e pag e 6-13 ).
14 . Rotat e th e crankshaf t clockwis e on e turn .
15 . Loose n th e balance r bel t adjustin g bol t 180° .
16. Tighte n th e adjustin g bolt , torqu e t o 4 4 N- m
(4.5 kgf-m , 3 3 Ibf-ft) .
BALANCE R BEL TADJUSTIN G BOL T
4 4 N- m (4. 5 kgf-m ,
33 Ibf-ft )
Directio nof rotation .
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Timing Bel t an d Balance r Bel t
Remova l
NOTE:
Replac e th e timin g bel t an d timin g balanc e bel t a t
105,00 0 mile s (168,00 0 km ) accordin g t o th e mainte -
nanc e schedul e (norma l conditions , sever e condi -
tions) . I f th e vehicl e regularl y i s drive n i n on e o r mor e
o f th e followin g conditions , replac e th e timin g bel t
an d timin g balance r bel t a t 60,00 0 mile s (U.S.A. )
100,00 0 k m (Canada) .
— In ver y hig h temperature s (ove r 110°F , 43°C) .
— In ver y lo w temperature s (unde r -20°F , -29°C) .
Tur n th e crankshaf t pulle y s o th e No . 1 pisto n i s a t
to p dea d cente r (TDC ) befor e removin g th e bel t (se e
pag e 6-13 ).
Inspec t th e wate r pum p befor e installin g th e timin g
bel t (se e pag e 10-10 ).
1 . Remov e th e engin e cove r (se e pag e 5-3 ).
2 . Remov e th e intak e ai r duc t an d ai r cleane r housin g
assembl y (se e pag e 5-4 ).
3 . Loose n th e mountin g bolt , loc k bol t an d adjustin g
rod, the n remov e th e alternato r bel t (se e pag e 5-7 ).
4 . Loose n th e idle r pulle y cente r nu t an d adjustin g
bolt, the n remov e th e ai r conditionin g (A/C ) com -
presso r bel t (se e pag e 5-7 ).
5 . Remov e th e TC S contro l valv e uppe r an d lowe r
brackets .
NOTE: Refe r t o sectio n 1 9 whe n installin g th e
brackets .
TCS CONTRO L
VALV E LOWE R
BRACKE T8 x 1.2 5 mm22 N- m (2. 2 kgf-m , 1 6 Ibf-ft )
6. Loose n th e adjustin g bolt , locknu t an d mountin g
bolt , the n remov e th e powe r steerin g (P/S ) pum p
bel t (se e pag e 6-6 ).
7 . Disconnec t th e TC S throttl e senso r connector , th e
TC S throttl e actuato r connector , an d th e throttl e
positio n (TP ) senso r connector , the n remov e th e
TC S contro l valv e assembly .
TCS THROTTL E
SENSO R CONNECTO R TC
S CONTRO L
VALV E
ASSEMBL Y
THROTTLE POSITIO N(TP) SENSO R CONNECTO RTC
S THROTTL E
ACTUATO R
CONNECTO R
8. Disconnec t th e vehicl e spee d senso r (VSS ) sub-har -
nes s connector , the n remov e th e wir e harnes s holder .
WIRE HARNES S
HOLDE R VS
S SUB-HARNES S
CONNECTO R
6 x 1. 0 m m12 N- m (1. 2 kgf-m , 8. 7 Ibf-ft )
6 x 1. 0 m m12 N- m (1. 2 kgf-m ,
8. 7 Ibf-ft )
TC
S CONTRO L
VALV E UPPE R
BRACKE T
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