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MAINTENANCE AND ADJUSTMENT
Unit;
mm
lin.)
Crankpin
Crankpi ns to
be
Qrou nd
to;
undersize
0.25 (0.0098)
57.75
-O.0~5
(2
2736
-
0 .00
138)
-O.0~
5·
0.00217
0.50
(0.0197)
57.50
-
0.035
(2
2638
-0
.00138)
0.055
'
0.00217
[
NOTE]
Try
to
keep
the
center-to-center
distance
be-
tween
journal
and
crankpin
within
:1:0.05
mrn
(0.00
197 in.)
of
47
mrn
(1.850
in.).
Whon
grinding
the
crankpins to an
undersize,
be
sure
to
SIle
Ih
e
corner
radius
(fillet) to
3
mm
(0.118
in.).
Thi,
.pplies
.!so
10
the
fillets
of
journals.
3R
3R
r
.i
"r
\
@
--
@
-
'"
'
'--
Crankshaft
corner
radius (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 en
d
pl.y
Unit:
mm Iln.1
Item
Standard
Re pair
limit
Crankshaft
end
0.1
-
0.264
0.3
play
(0
.00394
-
0.0)039)
(0.012)
The end
play is
due
to the difference
between the
width of thrust bearing
and
the dimension (A)
indicated
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
worn
,
damaged
or thermally fatigued at
the
Up
surface.
An
oil
seal
suspected
of poor
sealing
action evidenced by
signs
of
leakage (noted
upon
engine disassembly)
must
be
jnspected more
closelY
·
(6)
Oil seal sI ....
in .... ction
The 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
scratch
mark.
not
10
mention of
a
dent
O
r
groovy
wear.
on
this
surface
could
result
in
oil
leakage
,
and
3.
sleeve
wiLh such
a
surface !law
must
be replaced.
(7)
Replacement of rear oil
seal
sleeve (for cnnkshaft
gear)
To
remove
the
sleeve
,
put
a chisel
to
the
outs-ide
surface of
the
sleeve
and
drive it in axial direction
t
o
'tretch
it.
Thi,
will loosen the sl ••
ve,
m.k.ing it
rea dy
to
be
drawn
ou
t
.
When driving
,
be
careful
not
to dam.ge
the gear.
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