Datsun BLUEBlRD P 410 Series Service Manual page 31

i
r
SERVICE
OPERATIONS
WITH
ENGINEi
N
POSITION
Removing Starting Nut and
Pulley
Remove the radIator
Slacken the
dynamo
attachment bolts and
remove
the
fan
belt
Bend back the tab
on
the
starting
dog
nut
locking
washer Unscrew the
starting
dog
nut by
USing H eavy
duty
Shock
type
spanner
A
few
sharp
blows
In an ann
clockwIse dlrecnon will slacken the
nut
Pull off the crankshaft
pulley
Removing
the
Timing
Cover
The
tlmIng
cover IS
secured
by
set screw
bolts each
having
a
shakeproof
washer and
a
specIal plam
washer
Note that the
specIal
washer
IS
of
elongated
shape
and
IS
fItted
next to
the
nmIng cover
flange
The sprIng washers
are ImmedIately
below the bolt heads
Take
out
the
set
screw
bolts
remove
the
cover
and
ItS
JOint washer
Care
should be taken
not to damage
the washer when
breaking
the Jomt If
damage does
occur
flt
a new
washer
cleaning of the faces of the JOint surfaces beforehand
Removing
the
Timing
Gear
The
tlmIng chain
IS
endless and
It
IS
necessary
to
remove
both the crankshaft
and camshaft gears
together
Before
dOing
thIS
notlce
the
tlmIng
marks
on
both
1
gears and theIr
relatlonshlp
to
each other
Draw off both the gears
a
lIttle
at
a
tlme
fIrst
removing
the crankshaftt
gear
retamIng
nut
As the gears
are
withdrawn
care
must be taken
not to
lose the
paclang
washers
from behmd
the
crankshaft gear
Between the camshaft g
ar
teeth
IS a
rubber
rmg wInch
acts
as a tens
lOner
and
ensures
silent operatIon of the chain drIve
l
Examme the felt washer and
renew
It
If 011 has been lost
he
seepage
4
of
Refitting the Timing
Gear
Replacmg
the components of the
nmmg
gear
is
largely
a
reversal of the dlS
jl1anthng
process
but
specIal
attentlon
should be pal
to
the
follOWing
pOints
FIt the crankshaft and camshaft gears
Into
theIr respectlve shaftes
Ensure
the
tlmIng
marks
are
opposlte and
m
lIne
Turn the engme crankshaft untll the
keyway
IS
at
T D C and the
c m
shaft
wlth
Its
keyway
In
approxImately
the
one o
clock posltlOn
Place the gears
mto
pOSltIon
ensunpg
that the
keys
are
present
In
key vays
on
the shafts Ensure that the
tlmmg
marks
on
the gears
are
opposlte to
each
other and
m
lIne
DrIve the gears home
The
same
number of
packing
washers talCeil from
behind the crankshaft gear
must
be
replaced
unless
a new
crank
or
camshaft has been fmed
In thIS
case
the
ahgnment
of the gear
fac
s
and
measurn g
the
alIgnment
With
a
feeler gauge
To
adjust
the
alIgnment
It
wlll be necessary
to
vary the number of
packmg
washers
C
16
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