Fitting Of Piston Pin; Connecting Rod; Big End Play Check - Datsun 1200 1971 Workshop Repair Manual

Square
rmg
m
bore
by pushing
It mto pos1t1on
wIth the head
piston
Measure gap between
ends of
rmg
with feeler gauge
Gap
should be
as
hsted above
Note
a
When the
piston ring only
is
to
be
replaced without the
cylinder
bore
bemg
corrected
measure
gap
at
the bottom of
the
cylinder
where the
wear
is minor
b Overs1ze
piston
rings
are
avaIlable
for
service
50
100
150
oversize
Measure the
piston pm
hole
m
relation
to
the
outer
dIameter of the
pm
If
wear
exceeds the
hmlt
replace
such piston
pm
together
with
the
pIston on
whIch
It
IS
mstalled
PI ton pill
dldmeter
06869
to
06871
PIston pill
length
25681
to
5779
Piston pm hole dta
meter
06874 to 0 6871
PIston
pm to
piston
clearance 00002
to
OOUr
j
Interference
fit
of
piston
pm to
connectmg
rod
o 0008
EM133
FIg
43
Connecting rod ahgner
Bngine
Flttmg
of
piston
pm
Determme the
fittmg
of the
piston
pm mto
the
piston
pm hole
to
such
an
extent
that 1t
can
be
finger pressed at
room
temperature
ThIS
piston
pm rnust
be
tight
press
fitted
mto
the
connectmg
rod
Connecting
Rod
If
a
connectmg
rod shows
any
scratch
or score
mark
or IS
pitted
on
both Sides of the thrust
face and the
large
end correct
or
replace It
Check for bend
or
torsIOn usmg
a
connectmg
rod
ahgner
If bend
or
torsIOn
exceeds the
hmlt
correct
or
replace
the
connectmg
rod
When
replacing
the
connectmg
rod select the
rod
so
that
weight
difference between
new
and
old rods
IS
wlthm 0 18
oz m
umt
weIght
Standard
MaXimum
Connectmg rod bend
bend
or
tOrsIon
per
100
mm
o
0020
or
3 94
m
length
o
00391
torsIOn
o 0028
I
Standard MaXImum
BIg
end
play
00079 to 0 0118
I
U0157
FIg
44
Big
end
play
check
23