CYLINDER/PISTON
Inspect the cylinder bore for wear or damage.
Measure the cylinder I.D.
in
the X
and
Y axis at three
levels.
Take the maximum reading
to
determine the cylinder
wear.
STANDARD:
58.000 - 58.01 O mm (2.2835 - 2.2839 in)
Calculate the taper and out-of-round at three levels
in
the X and Y axis. Take the maximum reading
to
determine both measurements.
SERVICE LIMITS: Taper: 0.05 mm (0.002 in)
Out-of-round: 0.05 mm (0.002 in)
The cylinder must
be
rebored
and
an
oversize piston/
piston rings fitted if the service limits are exceeded.
The following oversize pistons/piston rings are
available:
0.25 mm (0.010 in)
0.50 mm (0.020 in)
0.75 mm (0.030 in)
1.00 mm (0.039 in)
The piston
to
cylinder clearance for the oversize piston
must
be:
0.01 - 0.04
mm
(0.0004 - 0.0016 in).
STUD BOLT REPLACEMENT
Thread two nuts onto the stud
and
tighten them
together, and use wrench
on
them
to
turn the stud bolt
out.
Install the stud bolts Install new stud bolts A
[1]
into the right crankcase.
with their larger Install new stud bolts B [2] into the left crankcase.
thread
end
o.o.
[3] Tighten the stud bolts to the specified torque.
sides facing the TORQUE: 9 N·m (0.9 kgf·m, 6.6
lbHt)
crankcase.
After cylinder stud bolt installation, check that the length
from the bolt head
to
the crankcase surface
is
within
specification.
SPECIFIED STUD BOLT A: 179.0 - 180.0 mm
LENGTH: (7.05 - 7.09 in)
STUD BOLT
B:
179.0 - 180.0 mm
(7.05 - 7.09 in)
INSTALLATION
Do
not
reuse the Install the dowel pins
[1]
and a new gasket
[2].
old gasket.
11-6
MI
ODLE
1<11---1----
1
BOTTOM'""--!--__...,
1~1
I
[1
]:
179.0-
180.0
mm
(7.05-
7.09
in)
I
[2]:
179.0 - 180.0
mm
(7.05 - 7.~9
~'/
[3]
..._._
______
~
I
.··.
··.· .
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