Crankshaft Sprocket And Camshaft Sprocket; Flywheel; Assembly; Cylinder Head - Datsun 1200 1971 Workshop Repair Manual

Ingine
1
Cut
a
plastIgage to
the
wIdth of the
bearing
and
place
It
m
parallel
with the crank
pm
gettmg
clear ofthe 011
hole
Install the
cap
on
the
assembly
and
tighten
them
together
with the
specified
torque
Tlghtentng torque
36
to
43 ft lb
Note Be
sure
not to turn
the crankshaft
when the
plastIgage
is Inserted
Remove the cap
and
measure
wIdth of the
plastlgage at Its widest
part
wIth the scale
printed
tn
the
plastIgage envelope
Crankshaft
Sprocket
and
Camshaft
Sprocket
Check
tooth surfaces for flaws and
wears
Replace
defective
sprocket
EM148
Fig
47 Camshaft sprocket
run out
check
Clearance
limit 0
1
mm 00039
m
1
Standard
0 02
to
0 08mm
0 0008
to
0 0031
m
t
Fig
48 Check
locatmg
plate thrust clearance
Install the camshaft
sprocket
m
posItion and
check for
run
out
If
It
exceeds 00039
tn
replace
the camshaft
sprocket
Check the camshaft thrust
deViatIOn
If
It
IS
deViated
replace
the camshaft
locatmg plate
Check
the
cham for
damage
excessive wear
and stretch
at
ItS roller Imks
Replace
cham
If defective
Flywheel
Check the clutch
diSC
contact surface of the
flywheel
for
damage
and
wear
Repair
or
replace
If necessary
Measure deVtat10n of the clutch dISC contact
surface with
a
dial
gauge
If
It
exceeds 0 0079
m
replace 1t
Check tooth surfaces of the
ring gear
for flaw
and
wear
Replace
If necessary
Note
Replace
the
ring
gear
at
about 356
to
392 F
ASSEMBLY
PrecautIOn
Use
thoroughly
cleaned
parts
PartIcularly
make
sure
that 011 holes
are
cleal of
foreign
matter
When
mstalltng sltdmg
parts
such
as
bearings
be
sure
to apply
engme 011
to
them
Use
new
packmgs and 011 seals
Keep tools and work benches clean
Keep
the necessary
parts
and
tools
near
at
hand
Be
sure
to
follow
specified tIghtemng
torque
and orders
Cylinder
Head
Assembly
ofvalve and valve sprmg
Set the valve sprmg
seat
m poSItIon
and fit
the
valve gUIde
with the 011
hp
seal
21