break the sleeve
..,d
take
II
out
of
the hole.
(4) Take
measuroments on the diameter
of
the
cylin·
der hole and 01'0
on
the
O.D. of
the
replacement
sleev
e;
and,
from
these
measureme
nts,
see
if
an
interferen
ce
anywhere between
0.
08
and
0.145
mm (0.00315
3Jl
d 0.00571 in.)
is
available
in
lhe
fit
to be
rn.ad
e
~
if not, try another sleeve
to
meet
this interference
re
q
uiremen
t.
(5) With a proper replacement sleeve having been
selected, heal the
crankcase-
in
a ba
th
of
oil to
a
bo
ut 300°C (572°F).
Us
ing lhe s
le
eve installer
and hyd
rauli
c
pre
ss, push
the
s1e
eve into the
crankc
a
se
in
o
ne
s
trok
e,
making
Sure
that
t
he
top
end of sleeve
be
comes
flush.
with
th
e gasketed
surface (top)
of
cran
Kcase
.
(6) Hone the
in
stalled
sl
ee
..
to the
standard
I.D.,
that
is,
94
plus 0.0
35
mm Or minus 0 mm
(3.70
1
plus 0.0014 in. or
minu,
0 in.).
Rep
l
;JC
in
g
sle8~B
Uni
t:
mm lin.)
Item
Stand
ar
d diameter
. -4).0 I 0
-0.00039)
Cylinder hole diameter
198
-0.045
(3.858
-0.00177
For
r
tplar;ement
sJeev~,
be
sure
to
use
the
parts
with
this
part
number
:
Unit:
mm
(in.)
-
Part
number
0.0
.
1.0.
98
+0.10
+0
93 0.2
+0.07
(3.66 j .0079) I
34407 - 00300
+0.0039)
(3.858 +0.0028
'--
Main
bearing
irupe<:tion
(I)
Insp
ec
t each main
beOTing
for evidence
of
wiping
or fatigue f
ail
ure , for scratche' by dirt particles
imbedded and for improper
soating
on
the bore
MAINTENANCE
AND
ADJUSTMENT
(bearing cap). On the basis of findings , determine
whether the
beOTing
should be repl.ced or
nOl
o
(2) Check each main bearing to be used in engine
reassembly
to
"e
whe
th
er it
will
provide the spe
ci
·
fied radial cle.rance. This can
be
accomplished
in
tl
us
m
anner
.
Install
the
main
bearings
on
the
crankcase,
less
the
crankshaft, securiIlg each bearing cap by tightening
its bolts to
ID
.4
kg·m (75 .2 ft·lb), and read the
diameter in
the
two directions (A) (B), indicated
below.
Mike
the
jomnal
and
,
from
these
readin
gs
,
c
ompu
te
th
e
radial
clearance.
Unit:
mm
(in
.)
Stand
ard
Repa
ir
It
em
li
mit
Radiol clearance
0 .05 -
0.1
15
0.
20
be
,ween
main
(0.0020 - 0.0045)
(0.008)
bearing and joumol
If
the
l:ompuled
clearance
exceeds
'he limit, re-
place
the
beOTing
or
regrind the journal and
use
the
next
underSize
bearing.
Two
undersizes
are
.vail.ble for tltis purpose:
0.25
and
0.50
mm
(0.0098 and 0.0197 in.
).
Measur
i
ng
main
bearing
1.0.
rTI
,
d.!:
Pos.lllons
for miking
ma
in
bearing
49
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