Beta Enduro RR 350 2013, Руководство по ремонту

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96
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IN
E ASS
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B
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X
Y
CHECKING THE CYLINDER
Make sure the bore is within the service limits of
the relevant class carried in the table below.
Carry out measurement at a distance A from the
top face of the cylinder (surface between cylin-
der and cylinder head). To measure it correctly,
it must be done according to the X and Y di-
rections orthogonal between them. Consider the
maximum measurement to determine the cylin-
der wear.
The difference between the two measurements
is the ovalization.
This measurement must be carried out by
placing the bore meter in such a way that
its axis is perpendicular to the axis of the
crankshaft.
ASSEMBLY CLEARANCE
The following table carries the coupling play
between the cylinder and piston.
In order to calculate the coupling play between
the cylinder and the piston, a subtraction must
be carried out between the diameter of the cylin-
der and that of the piston.
2
.17 .2
2
.17
.2.1
Displacement
[cm³]
Coupling play based on relevant
class [mm]
Coupling play limit based on relevant
class [mm]
Class 1 Class 2
Class 1 Class 2
Min Max Min Max
350 0,035 0,057 0,037 0,060 0,10 0,10
400 0,035 0,057 0,037 0,060 0,10 0,10
450 0,035 0,057 0,037 0,060 0,10 0,10
498 0,045 0,067 0,047 0,070 0,12 0,12
Displace-
ment [cm³]
Quota A
[mm]
Service limits based on relevant
class [mm]
1 2
Ovalization
[mm]
350 35 88,022 88,034 0,015
400 40 95,022 95,034 0,015
450 40 95,022 95,034 0,01
498 40 100,022 100,035 0,01