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CYLINDERS
Cylinders
range (mm)
GRADE
A
GRADE
8
GRADE
C
88,000
+
88,006
88,006
+
88,012
88.012
+
88,018
PISTONS
Platona range (mm)
GRADE
A
GRACE
B
GRADE
C
87,968 -;-
87.974
87,974
-;-
87,980
87,980
... 87,986
Pistons
of
an
engine
have
to
be
balanced
;
only
a difference of 1.5
gr.
in weight
is
admissi
ble.
peso.
Values
in
mm.
4.02
+
4.04
~~//
"l:
~
~
3.990
..,.
3.911
1.52
+
1.54
~
When
fitting
a piston,
make
sure
that the
..
SeA.
(exhaust)
mark is
facing
towards
the
exhaust
hole
of
the
cylinder.
o
..
....
+
.,.'
1.490
:
1.411'
-._'
1.4'0
+
1.471
....
+
.,SO
-~
'\
/
0
.1.....,
+
.1
....
59.914
+
5'.910
o
22.000
+
22.006
343L-____________________________________________________
~
Piston-pin
and
bushing mating data.
nserted end machlnec Islon-pin
d!a.
BlJStHng
10 plscon-pln
bush Inner
dis.
mm
mm
mating
clearance
mm
22 .015
21.994
0
,017
.;. 0,036
22
.030
21.998
274
CRANKSHAFT BALANCE CHECKING
To
statically
balance
the crankshaft it
is neces·
sary
to
apply to
the crankpin
a
load
of
1,650
.;.
1,652
Kg
.
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