Table of Contents
Advertisement
CYLINDER/PISTON
Inspect the cylinder
bore
for
woar
or
damaflo.
Measure
the
cylinder
I.D.
in
X
and
Y
axis
at
three
levels.
Take
the
maximum
reading
to
determine
the cylinder wear.
SERVICE
LIMIT: 63.10
mm
(2.001
In)
Calculate
the
taper
and
out
of
round
at
three
levels in
X
and
Y
axis.
Take
the
maximum
reading
to
determine them.
SERVICE
LIMIT:
Taper:
0.06
mm
(0.002
In)
Out
of
round:
0.05
mm
(0.002
in)
The
cylinder
must be
rebored
and
an
oversize piston
fitted
if
the service
limits
are
exceeded.
The
following oversize pistons are
available:
0.25
mm
(0.010
In)
0.50
mm
(0.020
In)
The
piston
to cylinder
clearance
for
the oversize piston
must
be: 0.01
- 0.04
mm
(0.0004
-
0.0016
in)
PISTON INSPECTION
Remove
the
piston
ring.
NOTE
•
Do
not
damage
the piston rings
during removal
Remove
any
carbon
deposits
from
the piston
ring
grooves,
using
an
old piston
ring as
shown.
8-4
Advertisement
Table of Contents
