engine ACURA TL 1995 Service Repair Manual

Engine Removal/Installatio n
Installation
Bracket Bolt s Torqu e Specifications :
ENGINE HANGE R
P/ S PUM P
BRACKE T
10 x 1.2 5 mm49 N- m (5. 0 kgf-m ,36 Ibf-ft )
ALTERNATO RBRACKET
10 x 1.2 5 mm49 N- m (5. 0 kgf-m ,
3 6 Ibf-ft )
RIGH T FRON T MOUN T
BRACKE T
10 x 1.2 5 mm44 N- m (4. 5 kgf-m ,33 Ibf-ft )
LEFT FRON T MOUN TBRACKE T
A/CCOMPRESSO RBRACKET
12 x 1.2 5 mm54 N- m (5. 5 kgf-m ,
4 0 Ibf-ft )
10 x 1.2 5 mm49 N- m (5. 0 kgf-m ,
3 6 Ibf-ft )
10 x 1.2 5 mm54 N- m (5. 5 kgf-m , 4 0 Ibf-ft )
8 x 1.2 5 mm22 N- m (2. 2 kgf-m ,
1 6 Ibf-ft )
10 x 1.2 5 mm54 N- m (5. 5 kgf-m , 4 0 Ibf-ft )
NOTE : Whe n installin g th e A/ C compresso r
bracket , tighte n th e bolt s o n th e oi l pa n
first , the n thos e o n th e cylinde r block .
8 x 1.2 5 mm34 N- m (3. 5 kgf-m , 2 5 Ibf-ft )
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Engine Installation :
Instal l th e engin e in th e revers e orde r o f removal .
Reinstal l th e moun t bolts/nut s i n th e followin g sequence .
Failur e to follo w thes e procedure s ma y caus e excessiv e
nois e an d vibration , an d reduc e bushin g life .
1 . Remov e th e mi d mounts , the n tighte n th e transmis -
sio n housin g mountin g bolt s an d torqu e converte r
cove r (se e sectio n 14 ).
2 . Instal l th e mi d mounts , the n tighte n th e bolt s an d
nuts i n th e numbere d sequenc e a s show n ( )
(see section 14 ).
MID MOUN T SPACE R
10 x 1.2 5 mm38 N- m (3. 9 kgf-m ,
2 8 Ibf-ft )10 x 1.2 5 mm43 N- m (4. 4 kgf-m ,
3 2 Ibf-ft )
3. Instal l th e lef t fron t engin e moun t an d vacuu m hose ,
the n tighte n th e bolts .
NOTE : D o no t tighte n th e nut .
VACUU MHOSE
10 x 1.2 5 mm38 N- m (3. 9 kgf-m ,
2 8 Ibf-ft )
10 x 1.2 5 m m38 N- m (3. 9 kgf-m ,
2 8 Ibf-ft )
4. Instal l th e righ t fron t engin e moun t an d vacuu m
hose , the n tighte n th e bolts .
NOTE : D o no t tighte n th e nut .
10 x 1.2 5 mm38 N- m (3. 9 kgf-m , 2 8 Ibf-ft )
VACUU MHOSE
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Engine Removal/Installatio n
Installation (cont'd )
5. Tighte n th e nu t o n th e lef t fron t engine mount.
12 x 1.2 5 mm74 N- m (7. 5 kgf-m ,54 Ibf-ft )
6. Tighte n th e nu t o n th e righ t fron t engin e mount .
12 x 1.2 5 mm74 N- m (7. 5 kgf-m , 5 4 Ibf-ft )
7. Instal l th e extensio n shaf t (se e sectio n 14 ).
8 . Instal l th e transmissio n moun t an d moun t bracket ,
the n tighte n th e bolt s i n th e numbere d sequenc e a s
show n ( ) .
12 x 1.2 5 mm54 N- m (5. 5 kgf-m ,
4 0 Ibf-ft )
12 x 1.2 5 mm54 N- m (5. 5 kgf-m ,
4 0 Ibf-ft )
12 x 1.2 5 mm64 N- m (6. 5 kgf-m ,47 Ibf-ft )Replace .
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Engine Moun t Contro l Syste m
Componen t Locatio n Inde x
ENGIN E CONTRO L
MODUL E (ECM )
Troubleshooting , pag e 5-1 8
ENGINE MOUN T CONTRO L
SOLENOID VALV ETroubleshooting , pag e 5-1 8
FRON T ENGIN E MOUN T
DIAPHRAG M ACTUATO RTest, pag e 5-2 0
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Engine Moun t Contro l Syste m
Troubleshootin g Flowchar t
NOTE:
• Chec k th e vacuu m hose s an d pipe s fo r damag e an d prope r connections .
• Refe r t o pag e 11-2 8 throug h 11-3 1 befor e troubleshooting .
The engin e vibrate s exces -
sivel y whe n idling .
Chec k Idl e Speed :
War m u p engin e t o norma l oper -
atin g temperatur e (th e coolin g fa n
come s on) .
I s th e idl e spee d les s tha n
80 0 rpm ?
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 connec t an d
disconnec t th e 2 P connecto r
fro m th e engin e moun t contro l
solenoi d valve .
I s ther e a noticeabl e chang e in
idl e smoothnes s whe n th e 2 P
connecto r i s connecte d an d
disconnected ?
Tes t 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 2 P connecto r
from th e engin e moun t con -trol solenoi d valve .
3 . Measur e voltag e betwee n th e
BLK/YE L wir e an d bod y ground .
I s ther e batter y voltage ?
Tes t th e Engin e Moun t Contro l
Solenoi d Valv e Wire :
Measur e voltag e betwee n th e BLK /
YE L wir e an d th e GRN/WH T wire . Adjus
t th e idl e spee d (se e pag e
11-117 ).
Reconnec t th e 2 P connecto r t o
th e solenoi d valve . Th e engin e
moun t contro l syste m is OK . ENGIN
E MOUN T CONTRO L
SOLENOID VALV E CONNECTO R
Repair ope n i n BLK/YE L wir e
betwee n th e 2 P connecto r an d
th e EC M fus e ('9 5 - '96 : 1 5 A , '9 7
- '98:2 0 A) .
TERMINA L SID E O F FEMAL ETERMINAL S
Is ther e batter y voltage ?
(T o pag e 5-19 ) —
Repai r ope n in GRN/WH T wir e
betwee n EC M (A10 ) an d th e 2 Pconnector .— If th e wir e i s OK , substitut e a
known-goo d EC M an d recheck .
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(From pag e 5-18 )
Tes t 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
BLK/YE L wir e an d th e GRN /
WHT wire .
ENGIN E MOUN T CONTRO LSOLENOID VALV E CONNECTO R
Is ther e batter y voltage ?
Tes t th e Engin e Moun t an d
Vacuu m Hose :
1 . Tur n th e ignitio n switc h OFF ,
the n disconnec t th e uppe r
vacuu m hos e fro m th e engin e
moun t contro l solenoi d valve ,
an d connec t a vacuu m pump /
gaug e t o th e hose .
2 . Star t th e engine , the n appl y
vacuu m fo r 2 0 seconds .
Doe s th e engin e moun t hol d
vacuum ?
Test th e Engin e Mount :
Releas e th e vacuum , the n appl y
vacuu m again .
I s ther e a noticeabl e chang e in
idl e smoothnes s wit h an dwithou t vacuu m applied ?
Tes t th e Engin e Moun t Contro l
Solenoi d Valve :
1 . Tur n th e ignitio n switc h OFF .
2 . Disconnec t th e lowe r vacuu m
hos e fro m th e engin e moun t
contro l solenoi d valve , an d
connec t a vacuu m gaug e to th e
hose .3. Star t th e engine .
I s ther e manifol d vacuum ? Repai
r shor t t o bod y groun d
i n GRN/WH T wir e betwee n
ECM (A10 ) and th e 2 P con -nector .If th e wir e i s OK , substitut e a
known-goo d EC M an d recheck .
— Replac e th e vacuu m hose .
— Replac e th e engin e mount . TERMINA
L SID E O F FEMAL E
TERMINAL S
ENGINE MOUN TCONTRO L SOLENOI DVALVE
UPPER VACUU MHOSE
Replac e th e engin e mount . VACUU
M PUMP /
GAUGE , 0-3 0 in.Hg .
A973 X - 04 1 - XXXX X
ENGIN E MOUN T
CONTRO L SOLENOI D
VALVE
Repair a s needed . VACUU
M PUMP /
GAUGE , 0-3 0 in.Hg .
A973 X - 04 1 - XXXX X
LOWERVACUU MHOSE
Replac e th e engin e moun t con -
tro l solenoi d valve .
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Diaphragm Actuato r Tes t
1. Disconnec t th e vacuu m hoses , the n remov e th e fron t
engin e mount s (se e pag e 5-11 ).
2 . Clea n an d oi l th e diaphrag m actuato r rod , roto r lever ,
an d leve r linkage .
3 . Wit h a vacuu m pump/gauge , appl y vacuu m o f abou t
30. 7 kP a (23 0 mmHg , 9. 1 in.Hg) , an d chec k i f th e
roto r leve r turn s 8 0 degrees .
— Replac e th e fron t engin e moun t i f th e roto r leve r
doe s no t operate .
FRONT ENGIN EMOUNTDIAPHRAG MACTUATOR
ROTORLEVER
VACUU M PUMP /GAUGE , 0-3 0 in.Hg .
A973 X - 04 1 - XXXX X
Engine Moun t Contro l Syste m
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Cylinder Hea d
Remova l
Engine remova l i s no t require d fo r thi s procedure .
Mak e sur e jack s an d safet y stand s ar e
place d properl y an d hois t bracket s ar e attache d to cor -
rec t positio n o n th e engine .
CAUTION :
• Us e fende r cover s t o avoi d damagin g painte d sur -
faces .
• Unplu g th e wirin g connector s carefull y whil e holdin g
th e connecto r portio n to avoi d damage .
• T o avoi d damagin g th e cylinde r head , wai t unti l th e
engin e coolan t temperatur e drop s belo w 100° F
(38°C ) befor e loosenin g th e retainin g bolts .
NOTE :
• Mar k al l wirin g an d hose s t o avoi d misconnection .
Also , b e sur e tha t the y d o no t contac t othe r wirin g o r
hoses , o r interfer e wit h othe r parts .
• Inspec t th e timin g bel t befor e removin g th e cylinde r
head .
• Tur n th e crankshaf t pulle y s o tha t th e No . 1 pisto n i s
a t to p dea d cente r (se e pag e 6-12 ).
1 . Mak e sur e yo u hav e th e anti-thef t cod e fo r th e radio ,
the n writ e dow n th e frequencie s fo r th e radio' s pre -
se t buttons .
2 . Disconnec t th e negativ e termina l fro m th e battery .
3 . Drai n th e engin e coolan t (se e pag e 10-5 ).
Remov e th e radiato r cap to spee d draining .
4 . Remov e th e groun d cabl e an d ignitio n coi l wire .
IGNITIO N COI LWIRE6 x 1. 0 m m9.8 N- m (1. 0 kgf-m ,
7. 2 Ibf-ft )
GROUN DCABLE
5. Remov e th e hea t shield s (se e pag e 5-3 ).
6 . Remov e th e intak e ai r duc t (se e pag e 5-4 ).
7 . 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
page 5-4 ).
8 . 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 ) compresso r
belt .
ADJUSTIN GBOLT
A/ C COMPRESSO R
BELTIDLE R PULLE YCENTER NU T10 x 1.2 5 mm44 N- m (4. 5 kgf-m , 3 3 Ibf-ft )
9. Loose n th e adjustin g bolt , loc k bol t an d mountin g
bolt , the n remov e th e alternato r belt .
MOUNTIN G BOL T10 x 1.2 5 mm44 N- m (4. 5 kgf-m ,
3 3 Ibf-ft )ADJUSTIN GNUT
LOC K BOL T8 x 1.2 5 mm22 N- m (2. 2 kgf-m , 1 6 Ibf-ft )
ALTERNATO R
BELT
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Cylinder Head

Removal (cont'd)

17. Remove the spark plug wires, distributor and ground

cables from the cylinder head.

O-RING

Replace.
8 x
1.25
mm

18 N-m (1.8 kgf-m,

13 Ibf-ft)

DISTRIBUTOR

GROUND

CABLES

18. Remove the wire harness covers and positive crank-

case ventilation (PCV) hose.

6 x 1.0 mm

9.8 N-m (1.0 kgf-m,

7.2 Ibf-ft)

PCV HOSE

WIRE HARNESS

COVERS

6 x 1.0 mm

12 N-m (1.2 kgf-m, 8.7 Ibf-ft)
19. Remove the engine wire harness connectors and

wire harness clamps from the cylinder head and the

intake manifold.

• Five injector connectors

• TDC/CKP/CYP sensor connector

• CKF sensor connector

• Idle air control (IAC) valve connector

• Engine coolant temperature (ECT) sensor connec-

tor

• ECT gauge sending unit connector

• ECT switch connector

• Exhaust gas recirculation (EGR) valve lift sensor

connector

• Throttle position sensor connector

• Intake air bypass (IAB) control solenoid valve con-

nector

• Evaporative emission (EVAP) purge control sole-

noid valve connector

20. Remove the ground cable and water bypass hose.

GROUND

CABLE

6 x 1.0 mm

12 N-m (1.2 kgf-m, 8.7 Ibf-ft)

WATER BYPASS

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Camshaft

Inspection

NOTE:

• Do not rotate the camshaft during inspection.

• Remove the rocker arms and rocker shafts.

1. Put the camshaft and the camshaft holders on the

cylinder head, then tighten the bolts to the specified

torque.

Specified torque:

8 mm bolts: 22 N-m (2.2 kgf-m, 16 Ibf-ft)

Apply engine oil

6 mm bolts: 12 N-m (1.2 kgf-m, 8.7 Ibf-ft)

Apply engine oil

6 mm bolts:

2. Seat the camshaft by pushing it toward the distributor

end of cylinder head.

3. Zero the dial indicator against the end of the distrib-

utor drive, then push the camshaft back and forth

and read the end play.

Camshaft End Play:

Standard (New): 0.05 - 0.15 mm

(0.002 - 0.006 in)

Service Limit: 0.5 mm (0.02 in)
4. Remove the bolts, then remove the camshaft hold-

ers from the cylinder head.

— Lift the camshaft out of the cylinder head, wipe it

clean,
then
inspect
the
lift
ramps.
Replace
the

camshaft if lobes are pitted, scored, or excessively

worn.

— Clean the camshaft bearing surfaces in the cylin-

der head, then set the camshaft back in place.

— Insert a plastigage strip across each journal.

5. Install the camshaft holders, then tighten the bolts

to the specified torque shown in the left column of

this page.

6. Remove the camshaft holders. Measure the widest

portion of plastigage on each journal.

Camshaft-to-Holder Oil Clearance:

Standard (New): 0.050 - 0.089 mm

(0.0020 - 0.0035 in)

Service Limit: 0.15 mm (0.006 in)

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