Datsun C210 series - Page 43

EM129
Fig
EM
39 Measuring
Pitton
RiiJg
Side Clearance
2 Measure
ring gap
with a feeler
gauge
placing ring squarely
in
cyl
inder
Ring
should
be
placed
to diameter
at
upper
or
lower limit
of
ring
travel
If
ring gap
e
ceeds
tl te
spefified
lim t
replace ring
Max
toleran
of
ring gap
1 0
m
IO
039
in
Fig
EM 40 Measuring Ring Gap
Note
a When
piston ring
only
is to be
replaCed
without
cylinder
bore be
ing
cO
rrected meas
the
gap
at
the bottom of
cylinder
where the
wear
is minor
b
Oversize piston rings
are available
for
service
0 5
mm 0
020 in 1 0
mm 10 039
in ovenize
J
n
3
Measure
piston pin
hole
in re a
tion to the out
r diameter of
pin
if
w
r
exceeds t 1e
limit
replac
such
piston
pin together
with
piston
on
which it is installed
Piston pin
to
pi
ton clearance
0 003
to 0 015
mm
0 0001
to 0 0006 in
EngillecMecll
n
ical
NOt
6etermme tlie fiit
ng
Of
piston
pm
into
piston
pin
hole to
such an
extent that
it can
be
pressed
smoothly by fmger
at room
tem
perature
This
piston
pi
must be a
tight press
fii
into
connecting
rod
EM131
fig
EM 41 Piston
fin
Fitting
CONNECTING
ROD
I
Check
connecting
rod
for
bend
or
torsion
using
a
connecting
rod
aligner
If bend
o
torsion exceeds
ti
e
liiI
it
correct
biieplace
Bend
arid torsion
per
10Qmm
13 94 in
length
l e
i
than
0
05 mm
10
0020
in
EM133
Fig
EM 42 Checking
Rod
Alignment
Fig
EM
43 Checking Big
End
Play
CRAN SHAFT
I
Repair
or
replace
as
required
If
faul ts are
mirior correct
with fine
crocus cloth
2 Check with a micrometer
journals
and crank
pins
for
taper
and
out of
round Measurement should
be taken
along journals
for
taRer
and around
journals
for out of
round
If
out
of
roun
d or
taper
exceeds
the
specified
limit
replace
or
repair
Out of round X VI
Le
s than
0 03
mm 10 0012
in
Taper IA BI
Less than
0
03
mm
10 0012 in
Out of round
x
v
TaPe
A
B
A
B
o
o
EM715
Fig
EM 44 Measurement
Point
3
After
regrinding
crankshaft
fInish
2 When
ieplacing connecting
rod
it
to
the
necessary
size indicated
in the
select rod so
that
weight
difference
chart
under Service
Data and
SpecifJ
between new and old
ones is within
7
cations
by using
n
adequate
undersize
gr
0
25
oz
bearing
according
to the extent of
3 Install
coimecting
roils
with
bear
required
repair
ings
on
to
corresponding
crank
pms 4 CrankShaft
can
be checked for
and measure
the
thrust
clearance If
bend
by placing
it on
V blocks and
the
m
asur
d
value exce
ds
t
he limit
ing
a
4ial ga
ge
wiJh
j
r wc tipg
replace
suth connec ting
rod
fmger
resting
9o
eenter
journal
Max tolerance of bi end
plaV
If bend
excee he
specifIed
limit
0
6
m
10 024
inl
replace
or
repair
EM
12