Fig. 1-
63
Fig.
1-64
)
Fig.
1-65
1
2.
In
installing a piston
pin
make it sure
that
the
piston
and
the
connecting rod
is
connected as shown in
Fig.
1-63
and in installing a piston, the
"F"
mark
on
it
should face
the
front side
of
the
engine.
3.
Place the piston and connecting rod on the support
block (
49
8134
041) and insert the piston pin
arranged
in
step
., .
4. Press in the piston pin until the lower end
of
press-in
guide comes in contact with the
bottom
of
support
block.
Note:
a)
The piston hole, piston pin circumferance and con-
necting rod small
end
hole should be lubricated with
engine oil before installing
the
piston pin.
b)
Load for pressing
in
the
piston pin
is
500
-
1,500
kg
(1.100 - 3.
300
lb).
If it
is
not
within
the
load, replace the connecting
rod
or
piston. pin.
Piston ring :
1.
Fit the spacer in the.
bottom
ring groove and install
the guide rails
on
it.
2. Install
the
second ring and then the
top
ring with
a suitable
in
stalle
r.
Note:
a)
Be
sure
to
install
the
rings with
the
inscription
mark upward as the faces
of
the
top
and second
rings are tapered.
b)
Do
not
expand the rings more than necessary
to
install, also be careful
not
to
burr
the
piston with
the
end
of
the
rings.
Piston and connecting rod assembly :
I.
Place the piston rings
at
about
120
° apart so
that
the gap
is
not
located
on
the
thrust
side and
the
piston pin side.
2. Lubricate the entire assembly with engine oil.
3. Using a suitable piston installer, insert the piston
and connecting rod assembly from the
top
of
the
cylinder block
by
tapping the piston lightly with
a plastic hammer.
Note:
Insert the piston and connecting rod assembly
to
the
cylinder so
that
" F" mark on
the
piston
is
directed
to
the
front
of
the engine.
4. Rotate the cylinder block upside down.
I :
18
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