Page 777 of 1771
Illustrated Inde x
Lubricat e al l interna l part s wit h engin e oi l durin g reassembly .
8 x 1.2 5 mm22 N- m (2. 2 kgf-m , 1 6 Ibf-ft )
O-RING SReplace .Clean whe n installing .
OI L PA N INNE R
PIPEClea n whe n installing .
O-RIN G
Replace .Clean whe ninstalling .
DOWEL PI N
OIL PA NAppl y liqui d gaske tto matin g surface .
6 x 1. 0 m m12 N- m (1. 2 kgf-m , 8. 7 Ibf-ft )
TORQU E CONVERTE R
COVER
12 x 1. 0 m m74 N- m (7. 5 kgf-m ,
5 4 Ibf-ft )
Torqu e sequence ,page 7- 6
WASHE R
DRIVE PLAT E
Chec k fo r cracks .
SE T PLAT E
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 )
11 x 1. 5 m m74 N- m (7. 5 kgf-m ,
5 4 Ibf-ft )
Apply engin e oi l t o th e bol tthreads .
NOTE :
Afte r torquin g eac h cap ,
turn crankshaf t t o chec kfor binding .
GASKE TReplace .
MAIN BEARIN GCAP
OIL SCREE N
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Page 778 of 1771

Illustrated Inde x
(cont'd )
Lubricat e al l interna l part s wit h engin e oi l durin g reassembly .
NOTE:
• Appl y liqui d gaske t t o th e matin g surface s o f th e rea r
cove r an d oi l pum p cas e befor e installin g them .
• Us e liqui d gasket , par t No . 0871 8-000 1 o r 0871 8-0003 .
MAIN BEARIN GOil clearance , pag e 7- 7
Selection , pag e 7- 7
NOTE : Ne w mai n bearing s mus t
b e selecte d b y matchin g cran k an d
bloc k identificatio n markings .
CRANKSHAF TEnd play , pag e 7- 6Runout , Tape r an dOut-of-Round , pag e 7-1 1Installation , pag e 7-1 9
THRUS T WASHE R
Groove d side s fac e outward .
NOTE: Thrus t washe r thicknes sis fixe d an d mus t no t b e change dby grindin g o r shimming .
RUBBER SEA LApply liqui d gaske tto matin g surface .
REA R CRANKSHAF T
OI L SEA L
Installation , pag e 7-1 8Replace .
6 x 1. 0 m m12 N- m (1. 2 kgf-m , 8. 7 Ibf-ft )Apply liqui d gaske t t oth e bol t threads .
6 x 1. 0 m m12 N- m (1. 2 kgf-m ,
8. 7 Ibf-ft )
Apply liqui d gaske t t oth e bol t threads .
REAR COVE RApply liqui d gaske t t obloc k matin g surface .
DOWEL PI N
FRON T CRANKSHAF T OI L SEA L
Installation , page s 7-2 2 an d8-1 5Replace .
DOWEL PI N
OIL PUM POverhaul , pag e 8-1 3Appl y liqui d gaske tto bloc k matin g surface . O-RIN
G
Replace .
O-RINGS
Replace .
ProCarManuals.com
Page 779 of 1771

NOTE: Ne w ro d bearing s mus t b e selecte d b y matchin g
connectin g ro d an d crankshaf t identificatio n marking s
(see pag e 7-9 ).
PISTO N INSTALLATIO N DIRECTIO N
EXHAUST
PISTON RING S
Replacement , pag e 7-1 7
Measurement , page s 7-16 , 7-1 7
Alignment , pag e 7-1 8
PISTO N PI N
Removal , pag e 7-1 4
Installation , pag e 7-1 6
Inspection , pag e 7-1 5
INTAK E
PISTON
Removal , pag e 7- 9
Measurement , pag e 7-1 2
NOTE : T o maintai n prope r clearance ,
match th e lette r o n th e pisto n to p wit hthe lette r fo r eac h cylinde r stampe d o n
th e block .
CONNECTIN G RO D
En d play , pag e 7- 6
Selection , pag e 7-1 4
Smal l en d measurement , pag e 7-1 5
CYLINDE R BLOC KCylinde r bor e inspection , pag e 7-1 2
Warpag e inspection , pag e 7-1 3
Cylinde r bor e honing , pag e 7-1 3
Inspec t to p o f eac h cylinde r bor e
fo r carbo n build-u p o r ridg e befor e
removin g piston .
Remov e ridg e if necessary , pag e 7-1 0
CONNECTIN G RO D
BEARING SClearance , pag e 7- 8
Selection , pag e 7-9
CONNECTIN G RO D BEARIN G CA P
Installation , pag e 7-1 9
NOTE : Instal l ca p s o th e bearin g reces s is o n
th e sam e sid e a s th e reces s in th e rod .
CONNECTIN G RO D NU T
8 x 0.7 5 mm32 N- m (3. 3 kgf-m , 2 4 Ibf-ft )After torquin g eac h bearin g cap ,
rotat e crankshaf t t o chec k fo r
binding .
CYLINDE R BOR E SIZE S(A o r I , B or Il )NOTE : T o maintai n prope r pisto n
clearance , matc h thes e letter s wit h
th e letter s o n th e pistons . Th e letter s
o n th e bloc k rea d fro m lef t t o right ,
No . 1 throug h No . 4 cylinders .
O n th e bloc k O n th e pisto n to p
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Page 780 of 1771

Drive Plat e Connectin
g Ro d an dCrankshaf t
Replacemen tEnd Pla y
Remov e th e eigh t driv e plat e bolts , the n separat e th e
driv e plat e fro m th e crankshaf t flange . Afte r installation ,
tighte n th e bolt s i n a crisscros s pattern .
RING GEA R HOLDE R07LAB-PV00100
ENGINEBLOCK
RING GEA RInspec t rin g gea rteeth fo r wea rand damage .
RING GEA R HOLDE R07LAB-PV0010 0
12 x 1. 0 m m74 N- m(7.5 kgf-m , 5 4 Ibf-ft )
Connectin g Ro d En d Play :
Standar d (New) : 0.1 5 - 0.3 0 m m
(0.00 6 - 0.01 2 in )
Servic e Limit : 0.4 0 m m (0.01 6 in )
• I f out-of-tolerance , instal l a ne w connectin g rod .
• I f stil l out-of-tolerance , replac e th e crankshaf t
(se e page s 7- 9 an d 7-19 ).
Pus h th e crankshaf t firml y awa y fro m th e dia l indicator ,
an d zer o th e dia l agains t th e en d o f th e crankshaft . The n
pul l th e crankshaf t firml y bac k towar d th e indicator ; dia l
readin g shoul d no t excee d servic e limit .
SCREWDRIVE R
Crankshaft En d Play :
Standar d (New) : 0.1 0 - 0.3 5 m m
(0.004-0.01 4 in )
Servic e Limit : 0.4 5 m m (0.01 8 in )
• I f en d pla y i s excessive , inspec t th e thrus t wash -
er s an d thrus t surfac e o n th e crankshaft . Replac e
part s a s necessary .
NOTE : Thrus t washe r thicknes s i s fixe d an d mus t
no t b e change d eithe r b y grindin g o r shimming .
Thrus t washer s ar e installe d wit h groove d sid e fac -
ing outward .
ProCarManuals.com
Page 781 of 1771

Main Bearings
Clearance
1. To check main bearing-to-journal oil clearance,
remove the main caps and bearing halves.
2. Clean each main journal and bearing half with a
clean shop towel.
3. Place one strip of plastigage across each main jour-
nal.
NOTE: If the engine is still in the car when you bolt
the main cap down to check clearance, the weight
of the crankshaft and flywheel will flatten the plasti-
gage further than just the torque on the cap bolt
and give you an incorrect reading. For an accurate
reading, support the crankshaft with a jack under
the counterweights and check only one bearing at a
time.
4. Reinstall the bearings and caps, then torque the
bolts.
1st step: 29 N-m (3.0 kgf-m, 22 Ibf-ft)
Final step: 74 N-m (7.5 kgf-m, 54 Ibf-ft)
NOTE: Do not rotate the crankshaft during inspec-
tion.
5. Remove the caps, and bearings again, and measure
the widest part of the plastigage.
Main Bearing-to-Journal Oil Clearance:
Standard (New): 0.018 - 0.048 mm
(0.0007 - 0.0019 in)
Service Limit: 0.053 mm (0.0021 in)
6. If the plastigage measures too wide or too narrow,
remove the crankshaft, and remove the upper half
of the bearing. '95 and '96 only: Install a new, com-
plete bearing with the same color (select the color
as shown in the right column of this page), and
recheck the clearance.
CAUTION: Do not file, shim, or scrape the bearings
or the caps to adjust clearance.
7. If the plastigage shows the clearance is still incor-
rect, try the next larger or smaller bearing (the color
listed above or below that one), and check again.
NOTE: If the proper clearance cannot be obtained
by using the appropriate larger or smaller bearings,
replace the crankshaft and start over.ProCarManuals.com
Page 782 of 1771
Main Bearing s
Selection
CAUTION : I f th e code s ar e indecipherabl e becaus e o f a n
accumulatio n o f dir t an d dust , d o no t scru b the m wit h a
wir e brus h o r scraper . Clea n the m onl y wit h solven t o r
detergent .
Crankshaf t Bor e Cod e Locatio n
Numbers , letters , o r bar s hav e bee n stampe d o n th e en d
o f th e cylinde r bloc k a s a cod e fo r th e siz e o f eac h o f th e
si x mai n journa l bores .
Us e them , an d th e number s o r bar s stampe d o n th e crank -
shaf t (code s fo r mai n journa l size) , t o choos e th e correc t
bearings .
Bearing Identificatio n
Colo r cod e is
o n th e edg e o fthe bearing .
ProCarManuals.com
Page 783 of 1771
Main Bearing s
Selection (cont'd )
'97-'9 8 models :
'9 7 - '9 8 models :
NOTE : Whe n usin g bearin g halve s o f differen t color , i t
doe s no t matte r whic h colo r i s use d i n th e to p o r bot -
tom.
ProCarManuals.com
Page 784 of 1771

Connecting Rod Bearings
Clearance
1. Remove the connecting rod cap and bearing half.
2. Clean the crankshaft rod journal and bearing half
with a clean shop towel.
3. Place the plastigage across the rod journal.
4. Reinstall the bearing half and cap, and torque the
nuts to 32 N-m (3.3 kgf-m, 24 Ibf-ft).
NOTE: Do not rotate the crankshaft during inspec-
tion.
5. Remove the rod cap and bearing half, and measure
the widest part of the plastigage.
Connecting Rod Bearing-to-Journal Oil Clearance:
Standard (New): 0.015 - 0.043 mm
(0.0006 - 0.0017 in)
Service Limit: 0.05 mm (0.002 in)
PLASTIGAGE STRIP
6. If the plastigage measures too wide or too narrow,
remove the upper half of the bearing, install a new,
complete bearing with the same color code (select
the color as shown in the right column of this page),
and recheck the clearance.
CAUTION: Do not file, shim, or scrape the bearings
or the caps to adjust clearance.
7. If the plastigage shows the clearance is still incor-
rect, try the next larger or smaller bearing (the color
listed above or below that one), and check clear-
ance again.
NOTE: If the proper clearance cannot be obtained
by using the appropriate larger or smaller bearings,
replace the crankshaft and start over.ProCarManuals.com