1995 ACURA TL Service Repair Manual

Selection

CAUTION: If the codes are indecipherable because of

an accumulation of dirt and dust, do not scrub them

with a wire brush or scraper. Clean them only with sol-

vent or detergent.

Connecting Rod Code Location

Numbers or bars have been stamped on the side of each

connecting rod as a code for the size of the big end. Use

it, and the letters or bars stamped on the crank (codes

for rod journal size), to choose the correct bearings.

Bearing Identification

Color code is

on the edge of

the bearing
Half of number is

stamped on bearing

cap and the other

half is stamped on

rod.ProCarManuals.com

Pistons an d
Crankshaf t
Removal
1. Remov e th e se t plate , the n remov e th e oi l pa n inne r
pipe (se e pag e 8-10 ).
2 . Remov e th e oi l pa n assembly .
3 . Remov e th e rea r cover .
DOWE L PI N
REA RCOVE R
O-RIN G
Replac e
4. Remov e th e oi l screen .
5. Remov e th e oi l pump .
OIL SCREE N
GASKE T
Replace .
O-RINGSReplace .
OIL PUM PDOWE LPIN
ProCarManuals.com

Pistons an d Crankshaf t
Removal (cont'd )
6. Remov e th e bolt s an d th e bearin g caps .
CAUTION : T o preven t warpage , unscre w th e bolt s
i n sequenc e 1/ 3 tur n a t a time ; repea t th e sequenc e
unti l al l bolt s ar e loosened .
MAI N BEARIN G CA P BOLT S LOOSENIN G SEQUENC E
7 . Remov e th e ro d caps/bearing s an d mai n caps/bear -
ings . Kee p al l caps/bearing s in order .
8 . Lif t th e crankshaf t ou t o f th e engine , bein g carefu l
no t t o damag e journals . 9
. Remov e th e uppe r bearin g halve s fro m th e connect -
in g rod s an d se t the m asid e wit h thei r respectiv e caps .
10 . Reinstal l th e mai n cap s an d bearing s o n th e engin e
i n prope r order .
11 . I f yo u ca n fee l a ridg e o f meta l o r har d carbo n aroun d
th e to p o f eac h cylinder , remov e i t wit h a ridg e
reamer . Follo w th e reame r manufacturer' s instruc -
tions .
CAUTION : I f th e ridg e is no t removed , i t ma y dam -
ag e th e piston s a s the y ar e pushe d out .
RIDG E REAME R(Commerciall y available )
12. Us e th e woode n handl e o f a hamme r t o driv e th e
piston s out .
HAMME R HANDL E
PISTON
13. Reinstal l th e connectin g ro d bearing s an d cap s afte r
removin g eac h piston/connectin g ro d assembly .
14 . Mar k eac h piston/connectin g ro d assembl y wit h it s
cylinde r numbe r t o avoi d mixu p o n reassembly .
NOTE : Th e existin g numbe r o n th e connectin g ro d
doe s no t indicat e it s positio n i n th e engine , i t indi -
cate s th e ro d bor e size .
ProCarManuals.com

Crankshaft
Inspection
• Clean the crankshaf t oi l passage s wit h pip e cleaner s
or a suitabl e brush .
• Chec k th e keywa y an d threads .
Alignmen t
• Measur e runou t o n al l mai n journal s t o mak e
sur e th e crankshaf t i s no t bent .
• Th e differenc e betwee n measurement s o n eac h
journa l mus t no t b e mor e tha n th e servic e limit .
Crankshaf t Tota l Indicate d Runout :
Standar d (New) : 0.0 3 m m (0.00 1 in ) max .
Servic e Limit : 0.0 4 m m (0.00 2 in )
DIA L INDICATO RRotate tw o complet erevolutions .
Support wit h lathe -type too l o r V-blocks .
Out-of-Roun d an d Tape r
• Measur e out-of-roun d a t th e middl e o f eac h ro d
an d mai n journa l i n tw o places .
• Th e differenc e betwee n measurement s o n eac h
journa l mus t no t b e mor e tha n th e servic e limit .
Journa l Out-of-Round :
Standar d (New) : 0.00 5 m m (0.000 2 in ) max .
Servic e Limit : 0.01 0 m m (0.000 4 in )
Measur e out-of -round a t middle .
Measur e tape rat edges .
• Measur e tape r a t edge s o f eac h ro d an d mai n
journal .
• Th e differenc e betwee n measurement s o n eac h
journa l mus t no t b e mor e tha n th e servic e limit .
Journa l Taper :
Standar d (New) : 0.00 5 m m (0.000 2 in ) max .
Servic e Limit : 0.01 0 m m (0.000 4 in )
ProCarManuals.com

Pistons
Inspectio n
1. Chec k th e pisto n fo r distortio n o r cracks .
NOTE : I f th e cylinde r i s bored , a n oversize d pisto n
mus t b e used .
2. Measur e th e pisto n diamete r a t a poin t 21. 0 m m
(0.8 3 in ) fro m botto m of skir t
NOTE : Ther e ar e tw o standard-siz e piston s (N o let -
te r o r A , an d B) . Th e lette r i s stampe d o n th e to p o f
the piston . Letter s ar e als o stampe d o n th e cylinde r
block a s cylinde r bor e sizes .
Pisto n Diamete r
N o Lette r
(A)
B
Standar d (New )
84.98 0 - 84.99 0 m m
(3.3457-3.346 1 in )
84.97 0 - 84.98 0 m m
(3.345 3 -3.345 7 in ) Servic
e Limi t
84.97 0 m m
(3.345 3 in )
84.96 0 m m
(3.344 9 in )
SKIR T DIAMETE R
21.0 mm(0.8 3 in)
3. Calculat e th e differenc e betwee n th e cylinde r bor e
diamete r show n i n th e righ t colum n an d th e pisto n
diameter .
Piston-to-Bloc k Clearanc e
Standar d (New) : 0.01 0 - 0.04 0 m m
(0.0004-0.001 6 in )
Servic e Limit : 0.0 5 m m (0.00 2 in )
PISTON-TO-CYLINDE RCLEARANCE
Oversize Pisto n Diamete r
0.25 : 85.23 0 - 85.24 0 m m (3.355 5 - 3.355 9 in )
0.50 : 85.48 0 - 85.49 0 m m (3.365 3 - 3.365 7 in )
ProCarManuals.com

Cylinder Bloc k
Inspectio n
1. Measur e wea r an d tape r i n direction s X an d Y at thre e
level s i n eac h cylinde r a s shown .
No. 1 No . 5 CYLINDE R BOR E SIZE S ( A o r I , B or Il )NOTE : T o maintai n prope r pisto nclearance , matc h thes e letter s wit hthe letter s o n th e pistons .
CYLINDE R BOR EGAUG E(Commerciall yavailable)
Cylinder Bor e Siz e
A o r I
B o r I l
Standar d (New )
85.01 0 -85.02 0 m m
(3.346 8 -3.347 2 in )
85.00 0 -85.01 0 m m
(3.346 5 -3.346 8 in )
Servic e Limi t
85.07 0 m m
(3.349 2 in )
85.07 0 m m
(3.349 2 in )
Oversiz e
0.25: 85.25 0 - 85.27 0 m m (3.356 3 - 3.357 1 in )
0.50 : 85.50 0 - 85.52 0 m m (3.366 1 - 3.366 9 in )
Bor e Tape r
Limit : (Differenc e betwee n firs t an d thir d measurement )
0.0 5 m m (0.00 2 in )
ProCarManuals.com

• I f measurement s i n an y cylinde r ar e beyon d
oversiz e bor e servic e limit , replac e th e cylinde r
block .
• I f th e bloc k i s t o b e rebored , refe r t o Pisto n
Clearanc e Inspectio n (se e pag e 7-11 ) afte r reboring .
NOTE : Score d o r scratche d cylinde r bore s mus t b e
honed .
Reborin g Limit : 0. 5 m m (0.0 2 in )
2 . Chec k th e to p o f th e cylinde r bloc k fo r warpage .
Measur e alon g th e edge s an d acros s th e cente r a s
shown .
SURFACE S T O B E MEASURE D
Cylinder Bloc k Warpage :
Standar d (New) : 0.0 7 m m (0.00 3 in ) max .
Servic e Limit : 0.1 0 m m (0.00 4 in )
PRECISIO N STRAIGH T EDG E(Commerciall yavailable)
ProCarManuals.com

Bore Honin g
2.
3.
4 .
Measur e cylinde r bore s a s show n o n pag e 7-12 . I f
th e cylinde r bloc k i s t o b e reused , hon e th e cylin -
der s an d remeasur e th e bores .
Hon e cylinde r bore s wit h honin g oi l an d a fin e (40 0
grit ) ston e in a 60 degre e cross-hatc h pattern .
NOTE:
• Us e onl y a rigi d hon e wit h 40 0 gri t o r fine r ston e
suc h a s Sunnen , Ammco , o r equivalent .
• D o no t us e stone s tha t ar e wor n o r broken .
Whe n honin g i s complete , thoroughl y clea n th e
cylinde r bloc k o f al l meta l particles . Was h th e cylin -
de r bore s wit h ho t soap y water , the n dr y an d oi l
immediatel y t o preven t rusting .
NOTE : Neve r us e solvent , i t wil l onl y redistribut e
th e gri t o n th e cylinde r walls .
If scorin g o r scratche s ar e stil l presen t i n cylinde r
bores afte r honin g t o th e servic e limit , rebor e th e
cylinde r block .
NOTE : Som e ligh t vertica l scorin g an d scratchin g is
acceptabl e if i t i s no t dee p enoug h t o catc h you r fin -
gernai l an d doe s no t ru n th e ful l lengt h o f th e bore .
CYLINDE R HON E
(Commerciall y
available )
CYLINDE R BLOC K
NOTE:
• Afte r honing , clea n th e cylinde r thoroughl y wit h
soap y water .
• Onl y a score d o r scratche d cylinde r bor e mus t b e
honed .
ProCarManuals.com