E M - l 00
E N G I N E M E C H A N I C A L -
Cylinder Block
B
Middle
IA
10.39 In. 1
=!
10 mm
C
1 0 mm
(0.39 in.!
w'�.e
I N SPECT I O N O F C Y L I N D E R BLOCK
1.
R E M O V E G A S K ET MATE R I A L
U s i n g a ga sket scraper, remove all t h e g a s k e t material
from t h e c
y
lin
de
r block surface.
2 .
C L E A N C Y L I N D E R BLOCK
3.
Using a s o l i brush and solvent. clean the block
INSPECT TOP OF C Y L I N D E R BLOCK FOR FLATN E S S
Using a precision strai g h t e d g e and f e e l e r gauge. measure
t h e surfaces contacting the cyl inder head gasket lor war
page.
M a ximum warpage: 0.20
m m
(0.00 79 in.)
If
warpage is grea ter than maximum, replace the cylinder
block.
4.
INSPECT C Y L I N D E R FOR VERTICAL SCRATCHES
Visually check the cylinder for vertical scra tc hes.
5.
If
deep scratches are presen t , rebore all six cylinders.
I N SPECT C V L l N D E R BORE DIAMETER
Using a
cylinder
gauge, measure I h e c
y
lin
d
er bore
diameter a t positions
A, B and
C i n the thrust and axial
directions.
Standard diameter:
STO
size
9 1 .000 - 9 1 .030 mm
13.7008 - 3.7020 In.)
M a x imum dia
m
eter:
STD
size 9 1 .23
m m
(6.5686 in.)
O/S 0.50 9 1 .73
m m
(6.6046 in.1
If
the diameter is greater than maXImum, rebore a l l six
cyli nders.
If
necessary, replace the cylinder block.
Содержание 12H-T
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