1996 ACURA RL KA9 timing belt

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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Timing Belt and Balancer Belt

Removal (cont'd)

14. Loosen the balancer belt adjusting bolt 180°. Push

the tensioner to remove tension from the balancer

belt, then retighten the adjusting bolt.

BALANCER

BELT ADJUSTING BOLT

10 x
1.25
mm

44 N-m (4.5 kgf-m,

33 Ibf-ft)

15. Remove the balancer belt.

16.
Loosen the timing belt adjusting bolt 180°. Push the

tensioner to remove tension from the timing belt,

then retighten the adjusting bolt.

TIMING BELT

ADJUSTING BOLT

10 x
1.25
mm

42 N-m (4.3 kgf-m,

31 Ibf-ft)

17. Remove the timing belt.ProCarManuals.com

Timing Bel t an d Balance r Bel t
Installatio n
Install th e timin g bel t an d balance r bel t i n th e revers e
orde r o f removal ; onl y ke y point s ar e describe d here .
CAUTION : D o no t rotat e th e crankshaf t pulle y o r cam -
shaf t pulley s wit h th e timin g bel t removed . Th e piston s
may hi t th e valve s an d caus e damage .
NOTE: Whe n installin g onl y th e balance r belt , g o to ste p
12.
1. Remov e th e spar k plugs .
2. Remov e th e balance r bel t driv e pulle y an d timin g
belt guid e plat e (se e pag e 6-4 ).
3 . Se t th e tinnin g bel t driv e pulle y s o tha t th e No . 1 pis -
to n is a t to p dea d cente r (TDC) . Alig n th e TD C mar k
o n th e timin g bel t driv e pulle y wit h th e pointe r o n th e
oi l pump .
POINTE R
TDCMAR K
KEYTIMIN G BEL TDRIV E PULLE YClean.
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4. Se t th e camshaf t pulley s s o tha t th e No . 1 pisto n is a t
TDC . Alig n th e TD C mark s o n th e camshaf t pulley s to
th e pointer s o n th e bac k covers .
LEFT:
TDC MAR K(BLUE )
BACK COVE RPOINTE R(YELLOW )
LEFT CAMSHAF TPULLEYClean.
RIGHT :
BACK COVE RPOINTE R(YELLOW )
TDC MAR K
RIGH T CAMSHAF T
PULLEYClean.
5. Instal l th e timin g bel t i n th e sequenc e shown .
Timing bel t driv e pulle y (crankshaft ) Adjustin g
pulley Lef t camshaf t pulle y Wate r pum p
pulley Righ t camshaf t pulley .
NOTE :
For easie r installation , tur n th e righ t camshaf t pul -
le y clockwis e abou t a hal f toot h fro m th e TD C posi -
tion.
Mak e sur e th e timin g bel t driv e pulle y an d cam -
shaf t pulley s ar e a t TDC .
6 . Loose n an d retighte n th e timin g bel t adjustin g bol t
t o tensio n th e timin g belt .
7 . Instal l th e lowe r cove r an d crankshaf t pulle y (se e
page 6-3 ).
8 . Rotat e th e crankshaf t pulle y abou t 5 or 6 turn s clock -
wis e s o th e timin g bel t position s o n th e pulleys .
9 . Adjus t th e timin g bel t tensio n (se e pag e 6-5 ).
10 . Remov e th e crankshaf t pulle y an d lowe r cover .
11 . Instal l th e timin g bel t guid e plat e an d balance r bel t
driv e pulle y (se e pag e 6-3 ).
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Timing Bel t an d Balance r Bel t
Installatio n (cont'd )
12. Alig n th e maintenanc e hol e an d th e balance r shaf t
hole . Inser t a 6 m m bol t tha t i s a t leas t 4 5 m m (1. 8
in ) lon g int o th e balance r shaft .
6 m m BOL TBALANCE RSHAFT
12 m m SEALIN GBOLT20 N- m (2. 0 kgf-m ,
1 4 Ibf-ft )
WASHE RReplace .
13. Chec k alignmen t o f th e pointers .
BALANCE R BEL TDRIVE N PULLE YPOINTE R
BALANCE R GEA R CAS EPOINTE R
BALANCE R BEL TDRIVE N PULLE YClean.
14. Se t th e timin g bel t driv e pulle y s o tha t th e No . 1 pis -
to n is a t TD C (se e pag e 6-10 ).
15 . Instal l th e balance r bel t driv e pulley , the n instal l th e
balance r belt .
16 . Loose n an d retighte n th e balance r bel t adjustin g
bol t t o tensio n th e balance r belt .
17 . Remov e th e 6 m m bolt . Instal l th e sealin g bol t i n th e
maintenanc e hole . Us e a ne w washer .
18. Instal l th e crankshaf t pulley , the n rotat e th e crank -
shaft pulle y abou t 5 or 6 turn s clockwis e s o tha t th e
balance r bel t position s o n th e pulleys .
19 . Adjus t th e balance r bel t tensio n (se e pag e 6-7 ).
20 . Remov e th e crankshaf t pulley .
21 . Instal l th e uppe r an d lowe r covers , the n instal l th e
crankshaf t pulley .
RIGHT UPPE RCOVE R
LOWE RCOVER
6 x 1. 0 m m12 N- m (1. 2 kgf8.7 Ibf-ft )RUBBE RSEAL
LEFT UPPE RCOVER
45 m m (1. 8 in ) o r longe r
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3. Stop after the ring compressor pops free, and check

the connecting rod-to-crank journal alignment

before pushing the piston into place.

4. Install the rod caps with bearings, and torque the

nuts to 44 N-m (4.5 kgf-m, 33 Ibf-ft).
RUBBER HOSES
CORRECT
Pistons

Installation

Before installing the piston, apply a coat of engine

oil to the ring grooves and cylinder bores.

1. Install the ring compressor, check that the bearing

is securely in place; then position the piston in the

cylinder and tap it in using the wooden handle of a

hammer.

2. Install the piston/connecting rod assemblies in the

cylinder block.

• Guide the piston carefully to prevent damage.

• Fit long rubber hoses (about 30 cm (12 in) long)

to the connecting rod bolts to protect the crank-

shaft.

• Install the pistons after setting the crankshaft to

BDC for each cylinder.

INCORRECT
The arrow must face

the timing belt side

of the engine and the

connecting rod oil hole

must face the right side

of the engine.

CONNECTING ROD

OIL HOLE

RUBBER

HOSE

NOTE: Maintain downward force on the ring com-

pressor to prevent the rings from expanding before

entering the cylinder bore.

Use the wooden handle

of a hammer to push, or

tap the piston into the

cylinder bore.

RING COMPRESSOR

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