Datsun 1000 User Manual

2
Emission
Control
FLAME TRAP
I
HOSE AIRCLEANER
TO VALve COVER
HOSE
PC
v
VALVE TO CRANKCASE
DISPOSABLE PCV
Q ttOSE
CLIPS
PCV
VAlV
VALVE
I
AIR CLEANER
BASE
OIL FILLER CAP
9
d
DIPSTICK
l
Components
of Closed
Type
Ventilation
System
Note inset PCV Valve Disposable Type
A
baftle
plate
and a meshed lIIter which is
located
within the
crankcase
prevents engine
oil from
being
drawn
upwards
into the inlet manifold
TO CHECK AND
TEST OPERA
liON
Sealed
Svstem
As this
system
is
relatively simple
and
does not
incorporate
a
regulating
valve
it is
only
a matter of
periodically checking
the
following components
at the
recommended intervals of 12 months
or 18
000 kilornetres
12
000 miles
I
Check the rocker
cover
to air cleaner
assembly
hose for
collapsing blocking
or
deterioration
Renew the
hose if after
checking
it is found to be unserviceable
2 Check the seals on the
engine
oil
filler
cap
and
the
dipstick
Renew
the seals
if
they
are
damaged
or if their
sealing qualities
are
suspect
Closed
System
The
system
should
also
be serviced at
the recommended intervals of 12
months or 18
000
kilomctres
12
000
miles with
particular
attention
given
to
the
regulating
valve
I Check
the condition of
the rocker
cover
to air
cleaner
assembly
hose and also the crankcase
to
inlet
manifold
hose
Carefully
check
for
blocking collapsing
or
deterioration Renew the hoses as found
necessary
2 Check the
seals
on
the
engine
oil
filler
cap
and the
Q
O RING
dipstiCk
Renew
the
seals
if
they
are
damaged
or
if their
sealing qualities
are
suspect
3
Check
the
operation
of the ventilation
regulating
valve as
follows
With
the
engine running
at
a
steady
idle
speed
disconnect the hose
from the
regulating
valve
A
sharp hissing
noise
will be heard
at the valve when
the hose is
disconnected
Now
place
a
finger
over the valve inlet A
strong
vacuum should
immediately
be felt
as
the
finger
is
placed
over
the
valve
If the
regulating
valve
is found
to be
partially
or
fully
inoperative
then renew the valve as a
complete assembly
It
is not
practicable
to dismantle
and clean the valve
4 A
faulty regulating
valve
may give
rise
to
anyone
or more
of
the
following
conditions
a Black
smoke
emerging
from
the
exhaust
b
Engine hunting
at idle
c
Engine
idle fluctuates
but
engine
does not
stall
d Loss of
power
and
surging
at
speeds
above
idle
e
Engine
stalls after
stops
and
runs
roughly
after
being
restarted with indications of a
lean
mixture
Note To
ensure effident
operation
of
the
ventilation
system
if is adl isahle to renew he
regulating
vah e everv
50000
kilomerres
30
OliO miles
2 XH
liST
O TII I S STE
Moditications to
the distributor
carburettor
and the
introduction
of
a
throttle
opening
device
were used to
achieve this result
It is known that
when a
coasting
condition exists
and
the
throttle valve
is
fully
closed an
inadequate
fuel air
DESCRIPTION
The
engine
modifications
system
is
utilized to reduce
the
percentage
of
pollutant gases
being
expelled
from
the
engine
exhaust
204
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Datsun 1000 Specifications

General

Brand	Datsun
Model	1000
Category	Automobile
Language	English