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CAUTION
Correct
the
bend
before
grinding
the crankshaft.
Finish each fillet
to the illustrated R.
Measure the crankshaft end play,
and if it exceeds the specified
value,
replace
the
front
main
bearing
housing.
To measure
the
end
play,
install
the
crankshaft
and
main
bearing
housing,
install
the
gear,
sleeve
and pulley,
tighten the
nut, and then apply a dial gauge
to
the
end of
the
crankshaft.
Main bearing and connecting rod bearing
Check the bearing surface for flaking, melting, seizure and incorrect
contact, and if defective, replace.
With each main bearing and connecting
rod
bearing· installed
in
the crank-
case,
bear ing housing and connecting
rod, measure the 1.0. of the bearings.
Then,
measure
the
0.0.
of
the
crankshaft
journals
and
pins
and
calculate the oil clearance.
If
the
oil
clearance
the
specifications,
bearing.
is
not
wi thin
replace
the
I f
the standard oil clear ance is not
obtained
even with
the
new bearing,
grind
the
crankshaft
undersize
and
install a bear ing of the same under-
size.
52
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