MAINTENANCE AND ADJUSTMENT
Unit; mm
li
n
.)
Cr
a
nkpin
Crankpins
to
be
Qrou
nd to;
und
er
s
ize
0
.2
5 (0.0098)
5
7.
75
-O.0~
5
(2 2736 - 0.00138)
-O.0~
5·
0.00217
0.50 (0.0197)
57.50 - 0.035
(2
26
38
-0
.00138)
0.055 ' 0.00217
[
NOTE]
Try
to
keep
the
ce
n
ter
-t
o-
cent
er
distan
ce
be
-
twe
en j
ourn
al
an
d
cr
ank
p
in
wi
thin
:1:0
.05 m
rn
(
0.
001
97
in.)
of
47
mrn
(1.8
50
in
.).
Whon
gr
ind
ing
the
cr
ank
p
in
s to an
und
ersize,
be
sure
to
SIle
Ih
e corner
ra
dius (
fil
let)
to
3
mm
(0.118
in
.). Thi,
.p
plies .!so 10 the fillets
of
journal
s.
3R
3R
r .i
"r
\
@
--
@
-
'"
'
'--
Crankshaft
corn
er
r
adiu
s (fillet
radius)
(4) Crtnk&ha(t end ploy
56
Check the crankshaft for end play, as shown, by
"sing • thickness gause at the thrust bearing.
If
a
play
of
0.3 nun (O.OllB in.)
Or
more
is
noted.
replace the thrust bearing.
Checking crankshaft end
pl.y
Unit:
mm
Iln.1
Item
Standard
Re
p
air
li
mit
Crankshaft end
0.1
- 0.264
0
.3
play
(0.
00
394 - 0.0
)039
) (0.012)
The e
nd
play
is
due to the difference between the
width
of
thrust bearing and the dimension (A)
indi
ca
ted
below
:
1\
1---111
@
'--
A
Journal
width for
th
rusr
bearing
(5) Oil
seal
ins"",,lion
Inspect each oil seal, and replace it
if
it
is
badly
wo
rn
, damaged or
th
ermally fatigued
at
the
Up
surface.
An
oil seal suspected
of
poor sealing
action evidenced by signs
of
leaka
ge
(noted upon
engine disassembly) must be jnspected more
closelY
·
(6) Oil
seal
sI
....
in
....
ction
T
he
outside
surface
of
the
oil
seal
sleeve
is
preci-
sion·machined and chrome·plated for v
••
ter wear
resistance.
Be
sure
to
handle the sleeves carefuUy
and
protect
th.is
s"rface against damage.
Even
a
slightest
sc
r
atch
mark
. not
10
ment
io
n
of
a
dent Or
gr
oo
vy
wear. on
this
s
urface
could
result
in
oil
leaka
ge
,
and
3.
sleeve
wiLh
su
ch
a
surface
!l
aw
must
be
replaced.
(7) Replacement
of
rear oil
seal
sleeve (for
cnnkshaft
gear)
To r
emove
t
he
sleeve, put a chisel to the o
uts-i
de
surf
ac
e
of
th
e sleeve
and
drive
it
in
axial
direction
to
'tretch
it. Thi, will loosen the
sl
••
ve
, m.k.ing
it
rea dy to
be
dra
wn
out. When driving,
be
careful
not
to dam.ge the gear.
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