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Compreuion
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Aing
No.
1
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Ex'p&~
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ENGINE
MECHANICAL
-
Cylinder
Block
EM·53
•
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Comptession
·
"•..;)
Ring No. 2
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Side
ASSEMBL
V OF
PISTON AND CONNECTING
ROD
ASSEMBLY
1.
ASSEMBlE PISTON
AND
CONNECnNG
ROD
2.
(a)
Install
a new snap
ring on one
sjde of
the
piston
pin
hole.
(b)
Heat
the
piston
in hot water to
approx.
60°C !140°F}.
(c)
Align the notch on the
piston
with the
mark
on the
rod
and
push
the piston
pin
in
with your
thumb.
td)
Install
a new
snap
ring
on
the other side
of
the pin.
PLACE
RINGS
ON PISTON
(a)
Using
a
r
ing expander.
install
the
top
two
compte&·
sion
r
ings
w
ith
the
code
marks
facing up.
(b~
Position the piston
rings so that the
ring end gaps are
in the shaded
area
as
show
n.
CAUnON:
Do
not
olgn the
end geps.
3
.
INSTALL
BEARINGS
ta)
Install the
bearings in the
connecting
rods and
rod
caps.
(b)
Lubricate
the face of the bearings
w
ith
engine oil.
INSPECTION AND REPAIR
OF CRANKSHAFT
1.
MEASUR£ CRANKSHAR
Ia}
Place the crankshaft
on
V·blocks.
lb)
Using a runout
gauge,
measure the
c,ircle
runout at
the center journal.
Maldmum
circle
runout: 0.06 mm (0.0024 ln.}
If
the
runout
i.s
grerater than maximum,
replace the
crank
shaft.
(C)
Using a
micrometer. check
the diameter
of
the main
and
crank
pin
journal.
Measure the
journals
for
out·Of
·round
and
taper
as
shown.
Main
journal
diameter:
59.988
-
60.012
mm
(2.3617
-
2 .3827 ln.}
Cron,
k
pin
diameter:
51 .976
-
52.000
mm
(2.0463 -
2.0472
ln.}
Taper and
out-of·round
llm}t:
0.02
mm
(0.0008 ln.}
If
journals
are worn. regrind or
replace the
crank
sheft.
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