Westerbeke 6.5KW Technical Manual page 48

4 cylinder marine gasoline generator sets twg series
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3.
Measure the side clearance be-
tween the piston ring and ring
groove •
. NOTE:
Measure
the
clearance
around
the
total
circumference
of the ring groove.
Side clearance limit:
0.15
mm
(0.006
in)
Side clearance limit:
0.15
mm
(0.006 in)
Checking Connecting Rod
1.
Check the side of the connecting
rod small end and large end for
cracks or damage.
If necessary,
replace the connecting rod.
2.
Check
the
connecting
rod
for
bends or twists with a suitable
alignment fixture.
If realign-
ment
is
necessary,
correct
by
using
a
press
and
applying
a
gradual pressure to the rod or
replace the connecting rod.
Permissible deflection:
0.04
mm
per 100
mm
(0.002 in per 4 in)
3.
Check
the
connecting
rod
side
play with a dial indicator or a
feeler
gauge
as
shown
in
the
figure.
If
it
exceeds
the
limit,
replace
the
connecting
rod or crankshaft.
End play limit:
0.3
mm
(0.012 in)
42
twist
t:h"a/e
~

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