Isuzu c223 turbo - Inspection and Repair

2-2 ENGINE ASSEMBLY
INSPECTION
AND REPAIR
Piston
pin
Visually
inspect
for
damage,
wear
or other
abnormal conditions.
Outside
diameter
Measure
ference.
at several
points
Fitting
interference
between
piston pin
and
piston pin
hole.
Piston
Clearance
between
piston
ring
and
ring
grove
Standard
Limit
1st
compression ring
o.120
-
o.155
o.185
2nd
compression
ring 0.050
-
0.085 o.1 15
Oilring 0.030
-
0.070 0.100
Piston ring
Remove
deposit of carbon
from
piston
rings and check
for wear
and damage.
lnsert
the
piston
ring into
bore and
push
it in,
at a
right angle
to
the
wall,
deep
enough to
reach
the
point
where
the cylinder bore
diameter
is
smallest
then measure
the
ring
gap.
Piston ring
gap:
tr
@
(mm)
Standard
Limit
29.0 28.97
(mm)
114(4.2188in.)
o
o
C
3
.2
1st, 2nd
compression
-
o.4